Studies on the allelopathic effect of aqueous extract of Ageratum conyzoides Asteraceae L. on seedling growth of Sorghum bicolor Linn.
|
|
- Corey Nichols
- 5 years ago
- Views:
Transcription
1 Academia Journal of Agricultural Research 2(3): 74-79, March 214 DOI: ISSN: Academia Publishing Research Paper Studies on the allelopathic effect of aqueous extract of Ageratum conyzoides Asteraceae L. on seedling growth of Sorghum bicolor Linn. (Poaceae) Accepted 9 th January, 214 ABSTRACT MacDonald Idu Department of Plant Science and Biotechnology, University of Benin, P.M.B 1154, Benin City Nigeria. macdonaldidu@hotmail.com mcdonald.idu@gmail.com The effect of aqueous stem, leaves, flowers and root extracts of Ageratum conyzoides on seedling growth, percentage germination and seedling evaluation of Sorghum bicolor at various treatment concentrations (25, 5 and 1) ppm was evaluated. The objective was to determine possible allelopathic effect of A.conyzoides extracts on S. bicolor seedlings cultivated on sandy and loam soil. At the end of this experiment, it was observed that A. conyzoides on both sandy and loamy soil has a low inhibiting effect on sorghum. The result of this study suggest that root exudates and extracts of A. conyzoides suppresses the growth of sorghum by releasing phenolic allelochemicals into the soil rhizosphere and not through alteration of soil nutrients. Further investigation on A. conyzoides is recommended as it can be used as a valuable herbicide by agriculturists as established in the findings of this research. Key words: Allelopathy, Ageratum conyzoides, Sorghum bicolor, Seedling growth, Seedling evaluation. INTRODUCTION Allelopathy has been broadly defined as the production of chemical compounds by one plant species that influences another plant species, mostly in a deleterious way (Newman, 1983; Rice 1984; Lawrence et al., 1991). Allelopathic plants interfere with nearby plants by dispersing chemicals into the soil that may inhibit neighboring plant growth, nutrient uptake, or germination (Inderjit and Dakshini, 1994; Inderjit and Dakshini, 1995, Inderjit, 1996; Abhilasha et al., 28). Allelochemicals are released into the environment via leachates and volatiles from live or dead plant roots and leaves (Jackson and Willenmsen 1976; Rice, 1984; Inderjit and Dakshini, 1994; Inderjit and Dakshini, 1995). Research on the recognition and understanding of allelopathy has been well documented over the past few decades (Rice, 1984; Rizvi et al., 1992). Sorghum bicolor Linn commonly called sorghum is a Poaceae related annual plant used largely for forage and it is very important in the world s human diet, with over 3 million people dependent on it (Bukantis, 198). Sorghum is one of the most important cereal crops in the semi-arid tropics. Sorghum is tolerant to drought, water, logging, saline, alkali, infertile soil and high temperatures. The disease that affects sorghum mostly is the sorghum midge, which is one of the most damaging and widely distributed in all sorghum growing regions of Africa. Sorghum was reported to be antiabortive, cyanogenetic, demulcent, diuretic, emollient, intoxicant, and is a folk remedy for cancer, epilepsy, flux, and stomach-ache (Duke and Wain, 1981). Ageratum conyzoides (Asteraceae) is an erect, herbaceous annual, 3 to 8 cm tall; stems are covered with fine white hairs, leaves are opposite, pubescent with long petioles and include glandular trichomes. The inflorescence contains 3-5 pink flowers arranged as a corymb and are selfincompatible. The fruit is an achene with an aristate pappus and is easily dispersed by wind. In some countries the species is considered a weed, and control is often difficult.
2 Academia Journal of Agricultural Research; Idu 75 Seeds are positively photoblastic, and viability is often lost within 12 months. The optimum germination temperature ranges from 2 to 5 C. The species has great morphological variation, and appears highly adaptable to different ecological conditions. A. conyzoides is widely utilized as traditional medicine by various cultures worldwide, although applications vary by region. This study is aimed at investigating the possible effect(s) of A. conyzoides aqueous extract on S.bicolor seedling growth on sandy and loamy soil samples. MATERIALS AND METHODS Source of material S. bicolor used in this research work, were obtained from the Katako grain market in Jos, Plateau state of Nigeria, while the A. conyzoides plants was gotten from selected lawns and farmland in Ejeme-Aniogor, in Delta state, Nigeria. Seeds of sorghum (S. bicolor) (red variety) were obtained from katako grain (commodity) market in Jos, Plateau state of Nigeria. The soil sample used in this research was obtained from Ejeme-Aniogor in Delta state. Preparation of test extracts This research work was carried out using aqueous extracts from the stem, leaves, root and flowers of A. conyzoides L. These plant parts were thoroughly washed in distilled water and dried in the oven at 8 C for 24 h. The dried samples were then ground to powder using pestle and mortar and sieved through an 8. mm aperture size wire mesh net screen. Ground samples were kept in plastic bags at room temperature. Three levels (, 25, 5 ppm) each of (stem, leaves, roots and flower) of A. conyzoides L, aqueous extract were prepared for use. The extracts were filtered into 1 ml beakers using Whatman filter paper. Methods used by Alam and Azmi (1991) were employed for the germination and seedling growth study. The treatment at each extract level were arranged randomly and applied thrice. The germinated seeds were counted, while the plumule height, radical length and number of root hair for each germinated seed crops were recorded (that is, Sorghum seed) every day for a period of three months and the results were expressed in terms of the average of the experiment. The data were analyzed statistically using simple percentage to evaluate the treatments effects. Viability test The floatation method was used whereby the seeds were steeped in a volume of water contained in a beaker; the viable seeds sank while those that floated were regarded as non-viable. Seedling evaluation In the evaluation of seedlings of sorghum (red variety), the procedure used by Idu and Ovuakporie-Uvo (213) was followed. Statistic analysis Results were expressed as mean± standard error of mean (S.E.M) and the level of significance between means were computed by ANOVA (F-test) using SPSS 17 computer software package. The level of significance was determined at.5 and data were also analyzed statistically using simple percentage to evaluate treatments. RESULTS The results of this research work are presented in three (3) broad sections namely, effects of extracts on germination, percentage germination and seedling evaluation. Effect of extract In the tables, means with same superscript are not significantly different from each other while means with different superscript are significantly different. Table 1 shows the result of the effect of flower, root, stem and leaves extract respectively on the plumule length development of S. bicolor on sandy and loamy soil at various levels (, 25, 5 and1 ppm). Table 2 shows the result of the effect of flower, root, stem and leaves extract respectively on the radical height development of S. bicolor on sandy and loamy soil at concentrations, 25, 5 and1 ppm. Table 3 shows the result of the effect of flower, root, stem and leaves extract respectively on the number of root hair development of S. bicolor cultivated on sandy and loamy soil at concentrations, 25, 5 and1 ppm. Table 4 shows result of the percentage germination of sorghum using aqueous extract of A. conyzoides cultivated on sandy and loam soil samples. Seedling evaluation was done using parameters such as primary roots, hypocotyls, shoot and primary leaves evaluation. Results are shown in Table 5. DISCUSSION The effect of stem extract on germination of sorghum cultivated on sandy soil shows that an increase in
3 Academia Journal of Agricultural Research; Idu 76 Table 1. Effect of A. conyzoides aqueous extracts on plumule length of sorghum on sandy and loam soil samples. Extract sources Parameter Concentration in PPM Sandy soil Loamy soil ±.33 a 3.57±.31 a 3.55±.42 a 3.69±.39 a 4.52±.91 b 4.34±.4 b 3.85±.5 b 2.98±.55 a ±.33 a 3.8±.31 a 3.49±.38 a 3.1±.46 a 2.38±.38 a 3.73±.39 a 3.2±.44 a 2.85±.4 a ±.44 b 2.97±.45 a 2.7±.36 a 3.17±.51 b 4.2±.61 b 3.8±.42 a 3.5±.44 a 4.16±.58 b ±.43 a 3.39±.53 a 3.64±.38 a 3.4±.41 a 3.83±.67 a 4.26±.15 a 3.9±.39 a 3.58±.36 a Table 2. Effect of A. conyzoides aqueous extracts on radical height of sorghum cultivated on sandy and loam soil samples. Extract sources Parameter Concentration in PPM Sandy soil Loamy soil ±.49 a 2.2±.49 a 2.4±.42 a 2.7±.3 a 5.67±.28 b 4.53±.66 b 5.4±.83 b 2.86±.63 a ±.72 a 3.59±.69 a 4.93±.7 b 4.24±.57 a 3.64±1.14 a 4.73±.23 a 4.44±.45 a 3.96±.42 a ±.77 a 3.51±.57 a 3.24±.7 a 3.88±1.1 a 3.97±.72 b 3.11±.74 b 2.25±.56 a 4.62±.54 b ±.4 a 4.63±.79 a 4.8±.53 a 4.27±.67 a 6.57±1.15 b 4.27±.21 a 5.31±.64 a 4.22±.62 a concentration increases its plumule length, radicle height, and the number of root hair. The plumule length was least at 25 ppm concentration, and highest at 5 and 1 ppm concentration respectively. The radicle height also had increase at 5 and 1 ppm concentration, least at 25 ppm. The number of root hair had observed increase in germination at concentration 5 and 1 ppm but the least number of root hair was at 25 ppm. For the effect of
4 Academia Journal of Agricultural Research; Idu 77 Table 3. Effect of A. conyzoides aqueous extracts on the number of root hairs of sorghum cultivated on sandy and loam soil samples. Extract sources Parameter Concentration in PPM Sandy soil Loam soil ±.37 b 1.5±.37 b.9±.28 b 1.1±.46 b 11.9±1.49 b 8.1±1.91 b 12.6±3.75 b 2.1±.85 a ±.52 a 1.2±.53 a 3.9±1.52 b 1.8±1.5 a 2.5±1.2 a 6.2±1.84 b 6.1±2.23 b 3.9±1.83 a ±2.92 a 5.4±1.76 a 5.5±1.83 a 4.±1.61 a 5.3±1.83 b 5.5±2.13 b 4.5±1.47 a 4.8±1.81 a ±2.16 b 5.3±1.57 a 5.3±1.57 a 9.±2.87 b 4.2±1.5 a 4.4±.27 a 4.9±1.21 a 3.3±1.21 a Percentage germination Table 4. shows result of the percentage germination of sorghum using aqueous extract of Ageratum conyzoides cultivated on sandy and loam soil samples. Extract sources Concentration in PPM Sandy soil Loam soil ±23.5 a 5.±22.5 a 55.7±25.1 a 53.3±24.7 a 54.7±24.3 a 49.7±19.9 a 45.3±2.2 a 54.±23.5 a ±24.7 a 59.3±26.7 a 54.7±25.8 a 53.3±24.5 a 58.±25. a 44.7±18.9 a 51.±23.1 a 34.7±16.9 a ±24. a 57.3±27.2 a 5.±22.9 a 55.±25.5 a 47.±22.3 a 52.±23. a 55.7±24.9 a 57.7±26.6 a ± 4.4 a 45.±21.6 a 5.3±24.2 a 54.±23.5 a 55.±26. a 44.7±2.9 a 3.7±12.9 a 42.3±18.7 a For all the analysis, Means with the same superscript are not significantly different, but means with different superscript are significantly different from each other. Means are not significantly different at 5%. Means for group in homogenous subset are displayed. Seedling evaluation.
5 Academia Journal of Agricultural Research; Idu 78 Table 5. Seedling evaluation of effects of Ageratum conyzoides extracts on the development of S. bicolor. Conc. (ppm) leaves Soil type Primary root Hypocotyl Primary shoot Sand Negative geotropic Spindle stunted Loam Stubby, retarded, spindle Trapped seed coat Broken in forming loop or spiral Spindly bent over Shredded Deformed missing 25 Sand Stubby, broken Spindly Bent over Deformed missing Loam Trapped seed coat, Glassy Twisted Decayed missing Decayed exiting less 5 Sand Trapped seed coat Stubby, stunted Glassy twisted than and shredded Loam Trapped seed coat geotropic Spindle twisted Glassy Deformed missing 1 Sand Stunted, broken Constricted glassy Twisted bent over Missing Loam Glassy, constricted Missing, shredded Spindly Fractured and deformed leaves extract on germination of sorghum on sand, Plumule length was least at 5 ppm concentration and highest at 25 ppm concentration. Thus, it can be said that increase in concentration increases the plumule length. For radicle height, the greatest effect of A. conyzoides leaf extract was observed at treatment 5 and 1 ppm. Also, an increase in concentration for number of root hair decreases the number of root hair. Effect of leaves extract on germination of sorghum on loams for plumule length and radicle height at 25 and 1 ppm concentration, showed an increase but, a decrease was observed at 5 ppm concentration. The radical height was highest at 1 ppm concentration treatment. The number of root hair had a decrease with increase in concentration. These observations are in conformity with previous research findings (Yang, 1991; Xuan et al., 24; Idu and Ovuakporie-Uvo, 213). The effect of flower extract germination of sorghum on sand was an increase in the length of plumule as the concentration increases. In contrast with the control treatment, the plumule length was the least there. On the radicle height column, it was observed that the more the increase in concentration the more the increase in the radicle length, while for the root hair it was observed that the number of root hair was smallest at 1 ppm concentration and most at 5 ppm concentration when compared with control, the number of root was smallest while, 25, 5 and 1ppm treatment were higher. The effect of flower extract on germination of sorghum cultivated on loam showed that at 25 ppm, plumule length was shortest while at 5 ppm plumule length was longest when compared to all the values obtained. the radicle height was highest at 5 ppm concentration and lowest at 1 ppm concentration, for the number of root it was observed that the more the increase in concentration the less the number of root hair. extract in general had a negative effect on plumule height, radicle lenght and in the number of root hair with increase in concentration. This report corroborates with the findings of Srivastava in 1985 (15 g of aerial part or 3 g of roots in 1 ml during 24 h inhibited germination of wheat and rice seeds). Sorghum cultivated on sand was observed mostly on the 25 ppm treatment, being that the length of plumule was least at this concentration. while for 5 and 1 ppm there was no much effect observed, in that their length were all about the same. For the radicle height, it was observed that the more the concentration, the more the increase in the radicle height, the least height was at 25 ppm concentration while the highest height was obtainable at 1 ppm concentration, while for the number of root hair, it was observed that the more the increase in concentration, the more the number of root hair. Effects of root extract on sorghum on loam; plumule length was reduced mostly at 25 ppm concentration and highest at 5 ppm concentration. On the radicle height column, it was observed that the more the increase in concentration, the more the increase in the radicle height. For the number of root hair, it was observed that increase in concentration increases the number of root hair. On percentage germination of A. conyzoides flower extract on sorghum cultivated on sandy soil, increased at all level of concentration exerted notable effect on the growth of sorghum as shown in Table 4. The effect of A. conyzoides flower aqueous extract on sorghum cultivated on sandy soil was highest at the concentration 25 ppm, and least at concentration 5 ppm. There was reasonable germination with increased concentration that is, the more the concentration, the more the increase in percentage germination of sorghum, when compared with the control treatment. Sorghum on treatment with A. conyzoides aqueous stem extract on sandy soil had increased percentage germination with increase in concentration (that is, 25 and 5). However 1 ppm concentration
6 Academia Journal of Agricultural Research; Idu 79 had the lowest response to germination with this extract type. For percentage germination using A. conyzoides aqueous leaves extract on sorghum cultivated on sandy soil, the more the concentration, the lesser the percentage germination. Percentage germination using aqueous flower extract of A. conyzoides on loamy soil on sorghum, there was an increase in percentage germination with increase in percentage concentration treatment from 25 to 1 ppm. For percentage germination of aqueous root extract of A.conyzoides on loamy soil, sorghum was observed to have increasing percentage germination with increase in concentration. The percentage germinate was highest at the treatment with 1 ppm concentration. A. conyzoides aqueous stem extract of sorghum cultivated on loamy soil had increase in percentage germination with in concentration from 25, 5 and 1 ppm. A. conyzoides aqueous leaves extract on loam soil; in the sorghum column 25 and 1 ppm concentrations had increased percentage germination compared to the control but, 5 ppm had the least percentage germination. The seedling evaluation of the effect of A. conyzoides revealed that the primary root of S. bicolor was stunted and trapped at 25 and 5 ppm, while at 1 ppm, it was missing, and the hypocotyls was shredded at 1 ppm. The shoot was tightly twisted and bent over at 1 ppm, the primary leaves were missing at 1 ppm (Table 5). The result of this research suggests that A. conyzoides is an allelopathic weed and therefore farm land of economic importance should be completely devoid of A. conyzoides due to its allelopathic effects, which if present on farm land can obviously result in stunted growth and poor yield of agricultural crops. Bukantis R (198). Energy inputs in sorghum production, In: D. Pimentel (Ed.), Handbook of Energy Utilization in Agriculture, CRC Press Inc., Boca Raton, FL, pp Duke JA, Wain KK (1981). Medicinal plants of the world. Computer index with more than 85, entries, 3 volumes. pp Idu M, Ovuakporie-Uvo O (213). studies on the allelopathic effect of aqueous extract of Ageratum conyzoides asteraceae on seedling growth of sesanum indicum l. (pedaliaceae). Int. J. Sci. Environ. Technol. 2(6): Inderjit (1996). Plant phenolic in allelopathy, Bot. Rev. 62: Inderjit, Dakshini KMM (1994). Allelopathic effects of Pluchea lanceolata on characteristics of four soils and growth of mustard and tomato. Am. J. Bot. 81: Inderjit, Dakshini KMM (1995). On laboratory bioassays in allelopathy. Bot. Rev. 61:28-44 Jackson JR, Willemsen RW (1976). Allelopathy in the first stages of secondary succession on the piedmont of New Jersey. Am. J. Bot. 63: Lawrence JG, Colwell A, Sexton OJ (1991). The ecological impact of allelopathy in Ailanthus altissima (Simaroubaceae). Am. J. Bot.78: Newman EI (1983). Interactions between plants. In Lang OL, Nobel PS, Osmond CB, Ziegler H [eds.], Physiological Plant Ecology III: Responses to the Chemical and Biological Environment. Springer-Verlag, Berlin, FRG. Rice EL (1984). Allelopathy. 2 nd Ed., Orlando,Fl; Academia press, New York, pp.421. Rizvi SJH, Haque H, Singh VK, Rizvi V (1992). A discipline called Allelopathy. pp.1-1. In: Rizvi SJH, Rizvi V. Eds. Allelopathy basic and applied aspects. New York, Chapman and Hall. Srivasta US, Jaiswal AK, Abidi R (1985). Juvenoid activity in extracts of certain plants. Curr. Sci. pp Xuan TO, Shinkichi T, Hong NH, Kanh TD Min CI (24). Assessment of phytotoxic action of Ageratum conyzoides L. (Billy goat weed) on weeds. Crop Prot. J. 23: Yang CM (1991). Allelopathic potential of purple nutsedge. (C. rotundus L.) and barnyard grass [Echinochloa crusgalli (L) Beauv.] on corn (Zea mays L. var. Tainung No.I). Inhibition of weed extracts on germination. Weed Sci. Bull. 12: Conclusion It be concluded that A. conyzoides extracts (flower, stem, root and leaf) had a positive allelopathic effect on the germination of S. bicolor at all concentrations. It can also be concluded that soil was not a determining factor for consideration of allelopathy of A. conyzoides on the seedling development of selected grain (sorghum), but could be as a result of the inhibitory effect of allelochemicals present in A. conyzoides. The result of this study thus suggests that allelopathy plays a significant role in a root- mediated negative interference of A. conyzoides. REFERENCES Abhilasha D, Quintana N, Vivanco J, Joshi J. (28). Do allelopathic compounds in invasive Solidago canadensis l. restrain the native European flora? J. Ecol. 96: Alam I, Amzi AR (1991). Effect of purple Nutsedge (Cyperus rotundus) leaf extract on germination and seedling of wheat. Pak. J. Weed Sci. Res. 4: Cite this article as: Idu M (214). Studies on the allelopathic effect of aqueous extract of Ageratum conyzoides Asteraceae L. on seedling growth of Sorghum bicolor Linn. (Poaceae). Acad. J. Agric. Res. 2(3): Submit your manuscript at
ALLELOPATHIC EFFECTS OF FIVE SELECTED WEED SPECIES ON SEED GERMINATION AND SEEDLING GROWTH OF CORN
J.Soil.Nature. 2 (2):13-18 (July 2008) ALLELOPATHIC EFFECTS OF FIVE SELECTED WEED SPECIES ON SEED GERMINATION AND SEEDLING GROWTH OF CORN M. A. SAMAD, M. M. RAHMAN 1, A. K. M. M. HOSSAIN 1, M. S. RAHMAN
More informationSome changes in germination and morphological traits of black seed under different soil types and common bean densities
Journal of Biodiversity and Environmental Sciences (JBES) ISSN: 2220-6663 (Print) 2222-3045 (Online) Vol. 3, No. 5, p. 31-35, 2013 http://www.innspub.net RESEARCH PAPER OPEN ACCESS Some changes in germination
More informationPreliminary phytoconstituents screening of some weeds and their potential toxicity on rice variety- Tarom via decomposition bioassay
2011 International Conference on Environmental, Biomedical and Biotechnology IPCBEE vol.16 (2011) (2011)IACSIT Press, Singapoore Preliminary phytoconstituents screening of some weeds and their potential
More informationALLELOPATHY: NATURAL AND AN ENVIRONMENT-FRIENDLY UNIQUE TOOL FOR WEED CONTROL
ALLELOPATHY: NATURAL AND AN ENVIRONMENT-FRIENDLY UNIQUE TOOL Arpana Mishra* FOR WEED CONTROL Abstract: Allelopathy term refers to all biochemical interactions ( stimulatory and inhibitory) among plants,
More informationROLE OF THE ALLELOPATHY IN MIXED VEGETABLE CROPS IN THE ORGANIC FARMING
Abstract Scientific Papers. Series A. Agronomy, Vol. LVI, 2013 ISSN 2285-5785; ISSN CD-ROM 2285-5793; ISSN Online 2285-5807; ISSN-L 2285-5785 ROLE OF THE ALLELOPATHY IN MIXED VEGETABLE CROPS IN THE ORGANIC
More informationBy the end of this lesson, you should be able to
Allelopathy 1 Allelopathy By the end of this lesson, you should be able to define allelopathy explain the difference between allelopathy and competition identify the key interactions in allelopathy provide
More informationAILANTHUS ALTISSIMA SPECIES INVASION ON BIODIVERSITY CAUSED BY POTENTIAL ALLELOPATHY
AILANTHUS ALTISSIMA SPECIES INVASION ON BIODIVERSITY CAUSED BY POTENTIAL ALLELOPATHY C. BOSTAN, F. BORLEA, Corina MIHOC, Mihaela SELESAN Banat s University of Agricultural Sciences and Veterinary Medicine
More informationBioscience Research Print ISSN: Online ISSN:
Available online freely at www.isisn.org Bioscience Research Print ISSN: 1811-9506 Online ISSN: 2218-3973 Journal by Innovative Scientific Information & Services Network RESEARCH ARTICLE BIOSCIENCE RESEARCH,
More informationEffect of Allelopathic weeds on Characteristics seed Growth in maize (Zea mays L. cv. KSC 704)
Advances in Environmental Biology, 6(1): 297-301, 2012 ISSN 1995-0756 297 This is a refereed journal and all articles are professionally screened and reviewed ORIGINAL ARTICLE Effect of Allelopathic weeds
More informationStudy of Allelopathic Interactions of weeds on of Wheat (Triticum aestivum L.) and Moong (Vigna radiata) using Equal-Compartment-Agar Method (ECAM)
International Journal of Applied Agricultural Research ISSN 0973-2683 Volume 12, Number 2 (2017) pp. 247-254 Research India Publications http://www.ripublication.com Study of Allelopathic Interactions
More informationALLELOPATHIC EFFECTS OF CELOSIA ARGENTEA L. ON SPERMOSPHERE MICROORGANISMS
Int. J. LifeSc. Bt & Pharm. Res. 2013 P Saritha and A Sreeramulu, 2013 Research Paper ISSN 2250-3137 www.ijlbpr.com Vol. 2, No. 1, January 2013 2013 IJLBPR. All Rights Reserved ALLELOPATHIC EFFECTS OF
More informationEFFECT OF ALLELOPATHIC LEAF EXTRACT OF SOME SELECTED WEED FLORA OF AJMER DISTRICT ON SEED GERMINATION OF TRITICUM AESTIVUM L.
EFFECT OF ALLELOPATHIC LEAF EXTRACT OF SOME SELECTED WEED FLORA OF AJMER DISTRICT ON SEED GERMINATION OF TRITICUM AESTIVUM L. Gupta Ankita 1 and Mittal Chabbi 2 1 Research Scholar, Dept. of Botany, Govt.
More informationJournal of Agricultural Technology 2010 Vol. 6(3):
Journal of Agricultural Technology 2010 Vol. 6(3): 573-577 Journal of Agricultural Available online Technology http://www.ijat-rmutto.com 2010, Vol.6(3): 573-577 ISSN 1686-9141 Response of wheat (Triticum
More informationResmi L 1 * and Anju S. Vijay
I J T AAllelopathic Effects of the Leaf Extract of Hevea Brasilienis (Muell. Arg)... Serials Publications Resmi L 1 * and Anju S. Vijay ABSTRACT: Allelopathy is the inhibition of the growth of a plant
More informationInstitute of Agricultural Sciences, University of the Punjab, Quaid-e-Azam Campus, Lahore, Pakistan
Bangladesh J. Bot. 46(4): 00-00, 2017 (December) EFFECTS OF AQUOUS EXTRACTS OF SUNFLOWER (HELIANTHUS ANNUUS L.) ON GERMINATION AND SEEDLING GROWTH OF THE SELECTED WHEAT (TRITICUM AESTIVUM L.) VARIETIES
More informationInt.J.Curr.Res.Aca.Rev.2016; 4(6): 16-21
Allelopathic Effects of (Sorghum bicolor L.) Extracts on Germination and Seeding Growth of (Triticum aestivum L.). M.S. AL- Juboory* and Walla M. AL- Juboory Department of Biology, College of Science,
More informationWeed Suppression by Buckwheat
98 Weed Suppression by Buckwheat Current Advances in Buckwheat Research (1995) : 693-697 Tohru Tominaga and Takako Uezu Faculty of Agriculture, Shinshu University, Ina, Nagano, Japan Abstract To clarify
More informationEffect of Parthenium hysterophorus L. on Germination and Elongation of Onion (Allium cepa) and Bean (Phaseolus vulgaris)
Research Journal of Chemical and Environmental Sciences Volume 1 Issue 2 (June 2013): 17-21 Available Online http://www.aelsindia.com/rjces.htm 2013 AELS, India Online ISSN 2321-1040 ORIGINAL ARTICLE Effect
More informationSecale cereale L. suppression by aqueous extracts of Glycine max
Available online at www.scholarsresearchlibrary.com Annals of Biological Research, 212, 3 (5):2282-2291 (http://scholarsresearchlibrary.com/archive.html) ISSN 976-1233 CODEN (USA): ABRNBW Secale cereale
More informationAllelopathic Effects of Tropical Spiderwort (Commelina benghalensis L.) Powder on the Performance of African Eggplant (Solanum macrocarpon L.
Allelopathic Effects of Tropical Spiderwort (Commelina benghalensis L.) Powder on the Performance of African Eggplant (Solanum macrocarpon L.) Awogbade, A. L., Oni, O.O., Oladejo, L.F., Adedeji, J.A.,
More informationLABORATORY STUDIES ON THE ALLELOPATHIC POTENTIAL OF SORGHUM AND SUNFLOWER WATER EXTRACT AND POWDER AGAINST NARROW-LEAF SUMMER WEEDS
LABORATORY STUDIES ON THE ALLELOPATHIC POTENTIAL OF SORGHUM AND SUNFLOWER WATER EXTRACT AND POWDER AGAINST NARROW-LEAF SUMMER WEEDS Muhammad Nawaz Kandhro 1, Muhammad Ali Ansari 1, Ahmed Naqi 1, Muhammad
More informationStudies on Allelopathic Effects of Ageratina adenophora Sprengel (King and Robinson) on Some Weed Plants Growing in Forest Ecosystem
International Journal of Theoretical & Applied Sciences 6(2): 1-6(214) ISSN No. (Print): 975-1718 ISSN No. (Online): 2249-3247 Studies on Allelopathic Effects of Ageratina adenophora Sprengel (King and
More informationAllelopathic impact of Phragmites karka on seed germination and radical and plumule growth of wheat variety sirin-2007
Scholarly Journal of Agricultural Science Vol. 4(7), pp. 427-431 July, 2014 Available online at http:// www.scholarly-journals.com/sjas ISSN 2276-7118 2014 Scholarly-Journals Full Length Research Paper
More informationAllelopathic Activity of Coffee Against Cicer arietinum and Triticum aestivum
Advances in Biological Research 7 (4): 129-133, 2013 ISSN 1992-0067 IDOSI Publications, 2013 DOI: 10.5829/idosi.abr.2013.7.4.73219 Allelopathic Activity of Coffee Against Cicer arietinum and Triticum aestivum
More informationEFFECT OF BANANA PLANT EXTRACTS ON GERMINATION AND SEEDLING GROWTH OF SOME VEGETABLE CROPS
Bangladesh j. crop sci. 2006, 17 (1): 235-242 EFFECT OF BANANA PLANT EXTRACTS ON GERMINATION AND SEEDLING GROWTH OF SOME VEGETABLE CROPS S. Roy, M. Asaduzzaman, M.H.R. Pramanik and A. K. M. A. Prodhan
More informationALLELOPATHIC EFFECTS OF WEEDS ON WHEAT (TRITICUM AESTIVUM L.) GERMINATION AND GROWTH
Pak. J. Bot., 45(3): 807-811, 2013. ALLELOPATHIC EFFECTS OF WEEDS ON WHEAT (TRITICUM AESTIVUM L.) GERMINATION AND GROWTH NASIRA JABEEN¹ *, MOINUDDIN AHMED¹, SYED SHAHID SHAUKAT² AND IRAM-US-SLAM¹ ¹Ecology
More informationAllelopathic Effect of Aqueous Root Bark Extract of Tamarindus indica L. and Rhizosphere Soil on Germination and Seedling Growth of Oryza sativa L.
ISSN: 2319-7706 Volume 3 Number 3 (2014) pp. 505-514 http://www.ijcmas.com Original Research Article Allelopathic Effect of Aqueous Root Bark Extract of Tamarindus indica L. and Rhizosphere Soil on Germination
More informationALLELOPATHIC EFFECTS OF CELOSIA ARGENTEA L. ROOT EXTRACTS ON CROP PLANT SEED GERMINATION
Int. J. LifeSc. Bt & Pharm. Res. 2013 P Saritha and A Sreeramulu, 2013 Research Paper ISSN 2250-3137 www.ijlbpr.com Vol. 2, No. 1, January 2013 2012 IJLBPR. All Rights Reserved ALLELOPATHIC EFFECTS OF
More informationA bioassay assessment of safflower allelopathy using equal compartment agar methods
Journal of AGROBIOLOGY J Agrobiol 30(2): 97 106, 2013 DOI 10.2478/agro-2013-0010 ISSN 1803-4403 (printed) ISSN 1804-2686 (on-line) http://joa.zf.jcu.cz; http://versita.com/science/agriculture/joa ORIGINAL
More informationSTUDY OF THE ACTION OF POA PRATENSIS L. VEGETAL EXTRACT ON THE CHEMICAL COMPOSITION OF SOME PERENNIAL GRASSES
STUDY OF THE ACTION OF POA PRATENSIS L. VEGETAL EXTRACT ON THE CHEMICAL COMPOSITION OF SOME PERENNIAL GRASSES Cristian BOSTAN, Alexandru MOISUC, Florina RADU, Luminiţa COJOCARIU,Veronica SĂRĂŢEANU Banat
More informationEvaluation of allelopathic potential of Weedy Species of Vicia on Gram (Cicer Arietenum)
Evaluation of allelopathic potential of Weedy Species of Vicia on Gram (Cicer Arietenum) Dr. Musarrat Ahmad, Asst. Professor (Dept. of Botany) S. B. N. College, Munger, India Abstract This research was
More informationInt. J. Biosci International Journal of Biosciences IJB
International Journal of Biosciences IJB ISSN: 2220-6655 (Print) 2222-5234 (Online) http://www.innspub.net Vol. 3, No. 3, p. 25-31, 2013 RESEARCH PAPER OPEN ACCESS Allelophatic effect of sunflower parts
More informationStudy on Purple Nutsedge (Cyperus rotundus) Tuber Dormancy and its Control Through Combined Application of Growth Regulator and Herbicides
Research Article Study on Purple Nutsedge (Cyperus rotundus) Tuber Dormancy and its Control Through Combined Application of Growth Regulator and Herbicides D. Ravisankar* and C. R. Chinnamuthu Department
More informationI. PLANT INTERACTION IN AGROECOSYSTEMS ALLELOPATHY
Plant Interactions in Agroecosystems Allelopathy. Page 1 of 5 I. PLANT INTERACTION IN AGROECOSYSTEMS ALLELOPATHY A. WHAT IS ALLELOPATHY 1. (AS DEFINED IN RICES' BOOK ON ALLELOPATHY): Allelopathy is the
More informationThe Effect of Some Allelochemicals on Seed Germination of Coronilla varia L. Seeds
American-Eurasian J. Agric. & Environ. Sci., 2 (5): 534-538, 2007 ISSN 1818-6769 IDOSI Publications, 2007 The Effect of Some Allelochemicals on Seed Germination of Coronilla varia L. Seeds Maryam Nasr
More informationAllelopathic activity and movement of water leachate from Mexican sunflower [Tithonia diversifolia (Hemsl.) A. Gray] leaves in soil
Allelopathic activity and movement of water leachate from Mexican sunflower [Tithonia diversifolia (Hemsl.) A. Gray] leaves in soil Suthep Tongma*, Katsuichiro Kobayashi* and Kenji Usui* Abstract: Laboratory
More informationMulti-herbicidal effects of Lanta camara extracts on Eleucine indica and Amaranthus hybridus: implications to weed control in organic gardens
Multi-herbicidal effects of Lanta camara extracts on Eleucine indica and Amaranthus hybridus: implications to weed control in organic gardens 1 Mabasa Chiedza, 1 Rugare Joyful, 1 Mabasa Stanford and 2
More informationAllelopathic Effects of Lantana (Lantana camara L.) Leaf Extracts on Germination and Early Growth of three Agricultural Crops in Ethiopia
Allelopathic Effects of Lantana (Lantana camara L.) Leaf Extracts on Germination and Early Growth of three Agricultural Crops in Ethiopia Desalegn Tadele Biology Department, P. O. Box 1817, Bahir Dar University,
More informationKeywords: barley, weeds, allelopathic components, varieties, culture time, density, Equal-Compartment-Agar method.
ALLELOPATHIC INTERACTIONS BETWEEN TWO BARLEY CULTIVARS (Hordeum vulgare L.) ON WEED ANNUAL RYEGRASS (Lolium multiflorum L.) AND CHARLOCK (Sinapis arvensis L.) USING THE EQUAL-COMPARTMENT-AGAR-METHOD Mohammad
More informationQuantification and Herbicidal Activity of Mimosine from Leucaena leucocephala (Lam.) de Wit
Transactions on Science and Technology Vol. 4, No. 2, 62-67, 2017 Quantification and Herbicidal Activity of Mimosine from Leucaena leucocephala (Lam.) de Wit Ismail Sahid 1 *, Muhamad Safwan Ishak 1, Fatimah
More informationALLELOPATHIC INFLUENCE OF RICE EXTRACTS ON PHENOLOGY OF VARIOUS CROPS AND WEEDS
Pak. J. Bot., 46(4): 1211-1215, 2014. ALLELOPATHIC INFLUENCE OF RICE EXTRACTS ON PHENOLOGY OF VARIOUS CROPS AND WEEDS RIAZ AHMAD AFRIDI 1, MUHAMMAD AZIM KHAN 2*, HASINA GUL 1 AND MUHAMMAD DAUD KHAN 3 1
More informationAllelopathic effects of Datura stramonium on seed germination and seedling vigour of Triticum aestivum (variety GW 273).
Allelopathic effects of Datura stramonium on seed germination and seedling vigour of riticum aestivum (variety GW 273). Waseem Ahmad, Aparna Alia¹, Fatima Khan². Department of Botany, Rajeev Gandhi College
More informationChapter VI: SUMMARY AND CONCLUSIONS
Chapter VI: SUMMARY AND CONCLUSIONS Chapter VI: SUMMARY AND CONCLUSIONS The thesis gives an account of the phytochemical analysis and mosquito repellent activity studies in some medicinally important plants
More informationAllelopathic effects of Yarrow (Achilla millefalium) on the weeds of corn (Zea mays L.)
Available online at www.pelagiaresearchlibrary.com European Journal of Experimental Biology, 2012, 2 (6):2493-2498 ISSN: 2248 9215 CODEN (USA): EJEBAU Allelopathic effects of Yarrow (Achilla millefalium)
More informationAllelopathic Effects of Chromolaena Odorata L. (R. M. King and Robinson (Awolowo Plant )) Toxin on Tomatoes (Lycopersicum esculentum Mill)
All rights reserved J. Appl. Sci. Environ. Mgt. 2001 Allelopathic Effects of Chromolaena Odorata L. (R. M. King and Robinson (Awolowo Plant )) Toxin on Tomatoes (Lycopersicum esculentum Mill) ONWUGBUTA
More informationEvaluation of allelophatic effects calotropis procera on sorghum and maize
Standard Scientific Research and Essays Vol2 (8): 345-349, August 2014 (ISSN: 2310-7502) http://www.standresjournals.org/journals/ssre Research Article Evaluation of allelophatic effects calotropis procera
More informationINTERNATIONAL RESEARCH JOURNAL OF PHARMACY ISSN Research Article
R. Manonmani et al. IRJP 2012, 3 (6) INTERNATIONAL RESEARCH JOURNAL OF PHARMACY www.irjponline.com ISSN 2230 8407 Research Article ALLELOPATHIC EFFECTS OF WEED (Tridax procumbens L.) EXTRACT ON SEED GERMINATION
More informationComparative Influence of Water Soluble Phenolics of Warm Climate Aquatic Weeds on Weeds Species Composition and Rice-Wheat Cropping System.
Scientia Agriculturae www.pscipub.com/sa E-ISSN: 31-953X / P-ISSN: 311- DOI: 1.1519/PSCP.SA.15.1.3.1515 Sci. Agri. 1 (3), 15: 15-15 PSCI Publications Comparative Influence of Water Soluble Phenolics of
More informationAllelopathic effect of Ricinus communis L. and Vitex negundo L. on morphological attributes of invasive alien weed: Cassia uniflora Mill
ISSN 2455-4499; Vol.03, Issue 03 (2016) Institute of Research Advances http://research-advances.org/index.php/irajas Allelopathic effect of Ricinus communis L. and Vitex negundo L. on morphological attributes
More informationSCREENING METHODS FOR EVALUATING THE ALLELOPATHIC POTENTIAL OF WHEAT AND TRITICALE GENOTYPES
Scientific Papers. Series A. Agronomy, Vol. LX, 2017 ISSN 2285-5785; ISSN CD-ROM 2285-5793; ISSN Online 2285-5807; ISSN-L 2285-5785 SCREENING METHODS FOR EVALUATING THE ALLELOPATHIC POTENTIAL OF WHEAT
More informationAllelopathic effect of four weed species extracts on germination, growth and protein in different varieties of Glycine max (L.) Merrill.
Journal of Environmental Biology July 2006, 27(3) 571-577 (2006) Triveni Enterprises, Lucknow (India) For personal use only Free paper downloaded from: www.jeb.co.in Commercial distribution of this copy
More informationThe allelopathic effects of juglone containing nuts Abstract Allelopathy is the inhibition of the growth of
The allelopathic effects of juglone containing nuts Catherine Qin, Manavi Nagai, Whitney Hagins, and Reginald Hobbs* Department of Science AP Biology Lexington High School, 251 Waltham Street, Lexington,
More informationCOMMUNICATIONS IN PLANT SCIENCES
COMMUNICATIONS IN PLANT SCIENCES Differential influence of shoot extracts of winter cover crops on seed germination of corn, soybean and indicator plants Mirian Fracasso Fabiani 1, Leonardo Bianco de Carvalho
More informationJournal of Biology and today's world 2013, volume 2, issue 5, pages: Study of the effects on the germination of weed
CNB Scholar Journals Available online: www.biology.cnbjournals.com Journal of Biology and today's world ISSN 2322-3308 Research Article Study of the effects on the germination of weed Sepideh Shayghan,
More informationAllelopathy of the invasive plant Bidens frondosa on the seed germination of Geum japonicum var. chinense
Allelopathy of the invasive plant Bidens frondosa on the seed germination of Geum japonicum var. chinense X.F. Wang 1, D. Hassani 3, Z.W. Cheng 1, C.Y. Wang 2 and J. Wu 2 1 School of Life and Environment
More informationLevel 2 Part II. MSU Extension Horticulture Associate Specialist. Pages Montana Master Gardener Handbook
Plant Growth and Development Level 2 Part II Toby Day MSU Extension Horticulture Associate Specialist Pages 24-48 Montana Master Gardener Handbook Vegetative parts of a plant Definitions Apical bud or
More informationReceived: 5 th May-2014 Revised: 26 th May-2014 Accepted: 7 th June-2014 Research article
Received: 5 th May-2014 Revised: 26 th May-2014 Accepted: 7 th June-2014 Research article ALLELOPATHIC EFFECTS OF EXTRACTS FROM TWO GROWTH STAGES OF WHEAT O WILD MUSTARD GERMIATIO CHARACTERISTICS Azar
More information, Iran. Corresponding author's Phone:
Romanian Biotechnological Letters Vol. 15, No.3, 2010 Copyright 2010 University of Bucharest Printed in Romania. All rights reserved ORIGINAL PAPER Allelopathic Effects of Xanthium strumarium L. Shoot
More informationIdentifying Wheat Growth Stages
AGR-224 Identifying Wheat Growth Stages Carrie A. Knott, Plant and Soil Sciences University of Kentucky College of Agriculture, Food and Environment Cooperative Extension Service Identifying growth stages
More informationAllelopathic Impact Of Certain Weeds On Oryza Sativa L.
Research Paper Volume 3 Issue 3 November 2015 International Journal of Informative & Futuristic Research Allelopathic Impact Of Certain Weeds On Paper ID IJIFR/ V3/ E3/ 060 Page No. 1055-1062 Subject Area
More informationAllelopathic effect of aqueous extracts of major weed species plant parts on germination and growth of wheat
2013 Scienceweb Publishing Journal of Agricultural and Crop Research Vol. 1(3), pp. 30-35, September 2013 ISSN: 2384-731X Research Paper Allelopathic effect of aqueous extracts of major weed species plant
More informationALLELOPATHIC EFFECTS OF RICE STRAW EXTRACT ON DIFFERENT CROPS AND WEEDS
ALLELOPATHIC EFFECTS OF RICE STRAW EXTRACT ON DIFFERENT CROPS AND WEEDS Riaz Ahmad Afridi 1, 2, Muhammad Azim Khan 2, Zahid Hussain 2, Sarwat Saleem 4, Shitab Khan 1, Khilwat Afridi 5 and Muhammad Ali
More informationAllelopathic effects of wheat and barley on emergence and seedling growth of some weed species
International Journal of Biosciences IJB ISSN: 2220-6655 (Print) 2222-5234 (Online) http://www.innspub.net Vol. 3, No. 1, p. 128-134, 2013 RESEARCH PAPER OPEN ACCESS Allelopathic effects of wheat and barley
More informationReview on allelopathic effects of agriculture land associated plants on the different developmental stages of wheat crop
International Journal of Biosciences IJB ISSN: 2220-6655 (Print), 2222-5234 (Online) http://www.innspub.net Vol. 12, No. 2, p. 8-13, 2018 RESEARCH PAPER OPEN ACCESS Review on allelopathic effects of agriculture
More informationComparisons of Phytotoxicity of Barley Parts Extracts in Three Growth Stages on Annual Ryegrass
American Journal of Agricultural and Biological Sciences 3 (4): 681-685, 2008 ISSN 1557-4989 2008 Science Publications Comparisons of Phytotoxicity of Barley Parts Extracts in Three Growth Stages on Annual
More informationUNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *7021514936* BIOLOGY 0610/02 Paper 2 Core May/June 2007 1 hour 15 minutes Candidates answer on
More informationMorphological Markers Related to Sex Expression in Papaya (Carica papaya L.)
Available online at www.ijpab.com Soni et al Int. J. Pure App. Biosci. 5 (4): 526-531 (2017) ISSN: 2320 7051 DOI: http://dx.doi.org/10.18782/2320-7051.5132 ISSN: 2320 7051 Int. J. Pure App. Biosci. 5 (4):
More informationAllelopathic effects of Prosopis juliflora Swartz
Journal of Arid Environments (1995) 31: 83 90 Allelopathic effects of Prosopis juliflora Swartz Mehar Noor, Uzma Salam & M. Ajmal Khan Department of Botany, University of Karachi, Karachi-75270, Pakistan
More informationnobilis L.) and Its Main Components on the Germination of Some Weed and Crop Species
Inhibitory Effects of Laurel (Laurus nobilis L.) and Its Main Components on the Germination of Some Weed and Crop Species R. CETINTS, N. TURSUN,.. ISIKER,. KRCİ M. H. LM, and M. SEYİTHNO THNOĞLU Faculty
More informationBio Ch Plants.notebook. April 09, 2015
1 Plants are vitally important to all life on Earth, especially humans Form the base of the food chain Medicines Clothing Building Materials 2 Plants for Food Cereals - The grass family - Rich in carbohydrates
More informationVulpia myuros (rattail fescue)
Australia/New Zealand Weed Risk Assessment adapted for Florida. Data used for analysis published in: Gordon, D.R., D.A. Onderdonk, A.M. Fox, R.K. Stocker, and C. Gantz. 28. Predicting Invasive Plants in
More informationDaizy R. Batish. Department of Botany Panjab University Chandigarh, India
Daizy R. Batish Department of Botany Panjab University Chandigarh, India Biological invasion has globalized world biota resulting in biotic homogenization Not restricted to plants only also includes mammals,
More informationAllelopathic Effects of Straw Extract from Two Native Iranian Wheat Varieties on the Growth of Two Corn Varieties (Single Cross 647, 704)
American-Eurasian J. Agric. & Environ. Sci., 10 (2): 133-139, 2011 ISSN 1818-6769 IDOSI Publications, 2011 Allelopathic Effects of Straw Extract from Two Native Iranian Wheat Varieties on the Growth of
More informationInternational Journal of Current Biotechnology
Gowsiya Shaik and Santosh Kumar Mehar, Allelopathic potentialities of an invasive tree, Prosopis juliflora on germination and seedling growth of rice under laboratory conditions, Int.J.Curr.Biotechnol.,
More informationAllelopathic property of parthenin on seed germination and seedling growth
Research Article Allelopathic property of parthenin on seed germination and seedling growth of wheat (Triticum aestivum) and barley (Hordeum vulgare) Solomon Sime Tessema * and Alemu Mekonnen Tura Solomon
More informationWater use efficiency in agriculture
Water use efficiency in agriculture Bill Davies The Lancaster Environment Centre, UK Summary Introduction and definitions Impacts of stomata, environment and leaf metabolism on WUE Estimating WUE and modifications
More informationAllelopathic Effect of some Weeds on the Germination of Seeds of Selected Crops Grown in Akwa Ibom State, Nigeria
World Journal of Agricultural Research, 2013, Vol. 1, No. 4, 59-64 Available online at http://pubs.sciepub.com/wjar/1/4/3 Science and Education Publishing DOI:10.12691/wjar-1-4-3 Allelopathic Effect of
More informationTHE EFFECTS OF FOLIAR APPLICATION OF SALICYLIC ACID ON QUALITATIVE AND QUALITATIVE YIELD OF WHEAT UNDER SALINE CONDITIONS
International Research Journal of Applied and Basic Sciences. Vol., 2 (9), 366-370, 2011 Available online at http://www. irjabs.com 2011 THE EFFECTS OF FOLIAR APPLICATION OF SALICYLIC ACID ON QUALITATIVE
More informationEFFECTS OF THE ROOT DEBRIS OF Tithonia diversifolia ON THE GROWTH OF Zea mays IN SOUTH-WESTERN NIGERIA
EFFECTS OF THE ROOT DEBRIS OF Tithonia diversifolia ON THE GROWTH OF Zea mays IN SOUTH-WESTERN NIGERIA Ilori, O. J. Biology Department, Adeyemi College of Education, Ondo, Nigeria E-mail: olasupoilori@yahoo.com
More informationDetermining the Influence of Temperature on Plants
Lesson C4 2 Determining the Influence of Temperature on Plants Unit C. Plant and Soil Science Problem Area 4. Environmental Factors Affecting Plant Growth Lesson 2. Determining the Influence of Temperature
More informationGLYPHOSATE, IMAZAPYR AND?? HERBICIDES FOR GRASS CONTROL - Greg MacDonald Agronomy Dept. University of Florida
GLYPHOSATE, IMAZAPYR AND?? HERBICIDES FOR GRASS CONTROL - Greg MacDonald Agronomy Dept. University of Florida TYPES OF GRASSES Perennial or Annual Bunch or Spreading Stolons or Rhizomes Viable Seeds or
More informationJaved Kamal* and Asghari Bano. Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
African Journal of Biotechnology Vol. 7 (18), pp. 3261-3265, 17 September, 2008 Available online at http://www.academicjournals.org/ajb ISSN 1684 5315 2008 Academic Journals Full Length Research Paper
More informationALLELOPATHIC AND CYTOTOXIC EFFECTS OF AQUEOUS EXTRACTS OF PARTHENIUM HYSTEROPHORUS ON CUCUMIS SATIVUS L. VAR. SAMBAR
ALLELOPATHIC AND CYTOTOXIC EFFECTS OF AQUEOUS EXTRACTS OF PARTHENIUM HYSTEROPHORUS ON CUCUMIS SATIVUS L. VAR. SAMBAR Hridya Mohanan and *Rajendiran K. Department of Botany, K.M. Centre for Post Graduate
More informationTrachelospermum jasminoides (confederate jasmine)
Australia/New Zealand Weed Risk Assessment adapted for Florida. Data used for analysis published in: Gordon, D.R., D.A. Onderdonk, A.M. Fox, R.K. Stocker, and C. Gantz. 28. Predicting Invasive Plants in
More informationEvaluation of allelopathic potential of Iranian wheat (Triticum aestivum L.) cultivars against weeds
AGRICULTURE AND BIOLOGY JOURNAL OF NORTH AMERICA ISSN Print: 2151-7517, ISSN Online: 2151-7525 2010, ScienceHuβ, http://www.scihub.org/abjna Evaluation of allelopathic potential of Iranian wheat (Triticum
More informationModel Analysis for Growth Response of Soybean
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS Vol. 34, Nos. 17 & 18, pp. 2619 2632, 2003 Model Analysis for Growth Response of Soybean A. R. Overman * and R. V. Scholtz III Agricultural and Biological
More informationReduction of Exudates (Browning) in Sugarcane Micro Propagation
Nig J. Biotech. Vol. 23 (2011) 40-44 ISSN: 0189 17131 Available online at www.biotechsocietynigeria.org. Reduction of Exudates (Browning) in Sugarcane Micro Propagation Ishaq M.N. and Ehirim Bernard O.
More informationEXPERIMENTAL PROCEDURE
EXPERIMENTAL PROCEDURE The present experimentation is carried out on biosorption of chromium and lead from aqueous solutions by biosorbents Ageratum conyzoides leaf and Anacardium occidentale testa powder.
More informationIntroduction to Weed Science and Weed Identification
Introduction to Weed Science and Weed Identification Definition of a Weed A plant growing where it is not wanted (Oxford Dictionary) Any plant or vegetation, excluding fungi, interfering with the objectives
More informationBIO- HERBICIDAL POTENTIALS OF THE AQUEOUS EXTRACTS OF THE LEAVES AND BARKS OF AZADIRACHTA INDICA
BIO- HERBICIDAL POTENTIALS OF THE AQUEOUS EXTRACTS OF THE LEAVES AND BARKS OF AZADIRACHTA INDICA A. JUSS ON THE GERMINATION AND SEEDLING GROWTH OF BIDENS PILOSA L Modupe Janet Ayeni* and Funmibi Victoria
More informationPassiflora coriacea (bat-leafed passion flower)
Australia/New Zealand Weed Risk Assessment adapted for Florida. Data used for analysis published in: Gordon, D.R., D.A. Onderdonk, A.M. Fox, R.K. Stocker, and C. Gantz. 28. Predicting Invasive Plants in
More informationPhytotoxic potential of sugar beet (Beta vulgaris) and eucalyptus (Eucalyptus camaldulensis) to control purslane (Portulaca oleracea) weed
This article was downloaded by: [Ferdowsi University], [Alireza Dadkhah] On: 11 February 213, At: 7:36 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 172954
More informationMATHEMATICAL MODELING OF ALLELOPATHY: BIOLOGICAL RESPONSE TO ALLELOCHEMICALS AND ITS INTERPRETATION
Journal of Chemical Ecology, Vol. 19, No. 10, 1993 MATHEMATICAL MODELING OF ALLELOPATHY: BIOLOGICAL RESPONSE TO ALLELOCHEMICALS AND ITS INTERPRETATION M. AN, 1"* I.R. JOHNSON, 2 and J.V. LOVETT 2 Centre
More informationControlling Sedges in Landscape Plantings. Joseph C. Neal, Extension Specialist, Weed Management Department of Horticultural Science
Controlling Sedges in Landscape Plantings HIL-647 Joseph C. Neal, Extension Specialist, Weed Management Department of Horticultural Science About the Weeds More than 40 sedge species may be found in North
More informationWeed Competition and Interference
Weed Competition and Interference Definition two organisms need essential materials for growth and the one best suited for the environment will succeed (humans usually manipulate so that crops succeed)
More informationAllelopathic effect of (Eucalyptus camaldulensis) on peanut (Arachis hypogaea) crop and purple nutsedge (Cyperus rotundus) weed
Scholarly Journal of Agricultural Science Vol. 5(6), pp. 189-194 July, 2015 Available online at http:// www.scholarly-journals.com/sjas ISSN 2276-7118 2015 Scholarly-Journals Full Length Research Paper
More informationUnit G: Pest Management. Lesson 2: Managing Crop Diseases
Unit G: Pest Management Lesson 2: Managing Crop Diseases 1 Terms Abiotic disease Bacteria Biotic disease Cultural disease control Disease avoidance Disease resistance Disease tolerance Fungi Infectious
More information13.4 Roots Figure 2 primary root: primary root secondary root: secondary root taproots fibrous taproots: roots. fibrous roots: adventitious roots
10. Why is it not surprising that many hydrophytes have little or no tissue? 11. The leaves of many underwater plants are finely divided, dramatically increasing the surface area that is in contact with
More informationGynura aurantiaca (purple velvet plant)
Australia/New Zealand Weed Risk Assessment adapted for Florida. Data used for analysis published in: Gordon, D.R., D.A. Onderdonk, A.M. Fox, R.K. Stocker, and C. Gantz. 28. Predicting Invasive Plants in
More informationEffect of litter and leaf leachates of Dendrocalamus strictus on soybean and wheat crop under pot culture experimentation
J. Bamboo and Rattan, Vol. 15, Nos. 1-4, pp. 51-60 (2016) c KFRI 2016 Effect of litter and leaf leachates of Dendrocalamus strictus on soybean and wheat crop under pot culture experimentation S. Nema1
More information