Abstract andrographis paniculata nees is traditionally known as kalmegh, allelopathic effect of kalmegh was examined on seed germination and seedling growth of four (sonalika, vl-914, euguanda-6 and mond’s aids) wheat genotype, the aqueous leaf extracts reduced seed germination and seedling growth of wheat. The main objectives of this research were to study the effects of root, stem, leaf, fruit and whole plant water extracts and soil infested with r capitata on mungbean (vigna radiate) germination and seedling growth, and to determine water soluble phenolics and total phenolics responsible for the allelopathic activity. Allelopathy shows the effects like inhibition of seed germination, seedling growth and alteration in physiology of seed germination  azadirachta indica (family- meliaceae) is an evergreen tree native to southeast asia. This would certainly explain whyte's findings that poor growth in some second rotation radiata pine forests occurred on the ridge tops and generally worse siteswhyte also found that ploughing the affected areas removed the problem, and in any case the effect disappeared given time (whyte, 1982, pers comm.
The main objectives of using allelopathy in biological therefore, in the present study, the effects of some control of weeds and crop productivity [3, 8-10] allelopathic compounds on germination start and seedling. Allelopathy effect was tested both at seed germination and seedling growth stage among the two plants tested, spinach showed more inhibition of seed germination and seedling growth than guava in both varieties. The allelopathic effects of interrupted fern frond leachates on ectomycorrhizal (inoculated) and nonmycorrhizal (noninoculated) northern red oak (quercus rubra l) seedlings were investigated container-grown northern red oak was inoculated with vegetative mycelium of suillus luteus l fr following acorn germination. Soil beneath jatropha curcas l reportedly (uttam et al 2014) affected the germination, seedling growth and vigour of some crops such as zea mays, vigna radiata and brassica compestris and the most pronounced allelopathic effects were noticed on vigna radiata.
This study, we assessed the effects of water hyacinth leaf extract on the germination, growth and several biochemical parameters of mimosa pigra , an invasive weed vigna radiata , a crop species, was also tested for comparison. S eed g ermination s tudies o n a llelopathic e ffects o f w eeds o n v igna radiata l nitesh joshi 1 , neha nangia 1 and ambika joshi 2 1 rizvi college of arts, science and commerce. To determine factors linked to the invasiveness of p radiata, we compared emergence and growth traits of p radiata seedlings at five different depths of leaf litter under pine needles, native eucalypt leaves and an equal mix of the two seedling emergence, height, survival and establishment were significantly reduced as leaf-litter depth. Comparative allelopathic potential of two aizoaceae weeds against germination of different crops t portulacastrum proved most harmful to germination and seedlings growth of all tested crops than s portulacastrum total water soluble allelopathic effect as compared to other parts of the plant the greater.
Mercury effect on germination and growth of capsicum annuum seeds nurshahida binti osman bachelor of science (hons (primary root) and plumule (primary shoot) was measured at two days after germination the other abnormal morphology, growth and development of seedlings were also recorded allelopathic effect of s macrophylla on the. Consequently, the overall growth of seedlings of this plant was promoted by all three extracts these results revealed that aqueous extracts from tissue of b pilosa var radiata had differential effect on the emergence and seedling growth of the three target species. Various depths and types of litter were used to investigate the allelopathic and physical effects of litter on emergence and growth of mission grass seedlings in the shade house results indicate that extracts did not affect germination of either species of mission grass but root growth of seedlings was affected.
Seedlings of v radiata were cultured in growth chamber in one-tenth hoagland culture solution with or without 25, 50 or 75% leachates leaves were harvested at 0, 6, 12, 24 and 48h time. Germination and seedling growth of greengram, vigna radiata (l) cultivated after rice n roy and a barik ecology research unit, department of zoology to observe the allelopathic effects of the different the seedlings were also recorded and then the. Keywords: allelopathy, tree-crop association, allelochemicals, interference the term allelopathy was coined by molish which can inhibit the growth and the develpoment (16) to include both harmful and beneficial of the understorey vegetation. Two-week old etiolated seedlings of v radiata were cultured in growth chamber in one-tenth hoagland culture solution with or without 25, 50 or 75% leachates leaves were harvested at 0, 6, 12, 24.
Allelopathic effects of eucalyptus globulus l on seed germination and seedling growth of egg plant (solanum melongena l) internation journal of farming and allied sciences: 3-1/81-86 malik ms 2004. Allelopathic effect of s macrophylla on the growth of v radiata seedlings 2771 words | 12 pages effect of different levels of nitrogen applied as foliar spray on the yield of mature tea under different agro-ecological conditions. The allelopathic effect of leaf extracts of s grandiflora decreased the seed germination of cajanus cajan var vamban 2 and var vamban 3 with increase of extracts concentration. Xanthophloea leachates on seed germination of some agricultural and multipurpose tree in this study a preliminary investigation was made to test for possible allelopathic effects of a xanthophloea on some crop and tree species leachates from parts of growth of shoots and roots of the seedlings (table 2) table 2 mean shoot and root.
Seeds aqueous extract of nigella sativa were evaluated for their effect on germination and seedling growth of vigna radiata two different methods were used to prepare the seed aqueous extract the aqueous extracts prepared were found to affect germination percentage and seedling growth of v. Wwwwjplsorg 334 kanedi et al world journal of pharmaceutical and life sciences given the phenomenon of inhibition against aconyzoides shown by c frutescens, while the pepper plants which were reported to have alelopatic properties is cannuum then the allelopathic relationship between aconyzoides and c annuum still need to be clarified. There was a significant correlation between seed aqueous extract concentration of n sativa and the result of germination and seedling growth inhibition of v radiata, indicated that toxic compound(s) was responsible agent for toxic effects of n sativa on germination and seedling growth v radiata. Review of literature competition for environmental resources apart, allelopathy, the direct or indirect e deglupta and e robusta) on growth of maize seedlings and found that e alba was the most allelopathic species and fresh leaves were the most allelopathic 'extract' (at 1, 2 and 5%) for their allelopathic effect on seedling growth.