Chromolaena odorata is an aggressive weed that adversely affects cereal crops and grazing lands in Serengeti-Tanzania. This study investigated allelopathic. Allelopathic Effects of Chromolaena odorata (L.) King & Robinson on Seed Germination and Seedlings Growth of Paddy and Barnyard Grass. Fulltext – Effect of Chromolaena odorata on the Growth and Biomass Allelopathy is defined as the direct or indirect harmful or beneficial effect of one plant on.

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Journal of Applied Sciences and Environmental Management

Ife brown and soybean var. Results showed that the effect of year and cultivars’ emergence time were not significant, but the effect of sowing date was significant.

Effect of three weed residues on weed and crop growth. Alfalfa autotoxic fraction characterization and initial separation.

The leaf area was determined using the formula according to Pearcy et al. BRS physiology, health, structural quality, and oil quantity and distribution, under storage at different temperatures and packaging conditions. The drying curves were fitted using three drying od – polynomial, Page and sigmoid. Leather gave a similar report that sunflower Helianthus annuus L.

Effects of aqueous extract of Chromolaena odorata on the shoot height of Celosia argentea Table 2: Time Weeks After Planting. Four statistical techniques consisted of canonical correlation CCprincipal component analysis PCcluster analysis, and stepwise regression were undertaken for exploring the relationships.

However, this stimulatory effect of siam weed extract would not benefit weeds which germination has been marked prevented Table 1. For pod diameter and seed odoratw, epistasis could not be effetc by both the tests, and in the expression of these two traits additive gene action was very important.


Effec effect of Tithonia diversifolia on germination and growth of Amaranthus cruentus Linn. The fresh and dry plant parts were weighed on Meltler Toledo balance to obtain fresh and dry weights of plant parts.

Seeds of the five plants, either treated with siam weed extract or untreated were used as treatments. Identification of allelopathic compound from rice Oryza sativa L.

Seedlings were thinned to 4 plants per pot 3 weeks after planting WAP. The impact and compression damages anticipated climacteric ethylene peak and, consequently, fruit ripening. Weed crop interaction with the stand point of allelopathy allelooathic been explored Lydon et al. Alabi 1 and O. Effects of aqueous extract of Chromolaena odorata on the root length of Celosia argentea.

July | Australian Journal of Crop Science

Data on weeds could not be taken at this period because weed growth was slow. The allelopathic effect of three Amaranthus spp.

Table of Contents 8 7 Siam weed Chromolaena odorata L King and Robinsona perennial weed belongs to the family Asteraceae. Allelopathy in the search for natural herbicide model. Volume 8 Issue 7 July issue. Critical Review in Plant Science 18, Principles and Practices in Plant Ecology: Allelopathic activity of annual worm wood Artemisia annua and the role of artemisinin. Sunflowers Helanthus annus are allelopathic to weeds. The maximum mean for grain Fe concentration over the locations was obtained for L Spatially demarcated 36 grids within soil series accounted for more variation in crop performance and reacted more significantly to temporal variation than soil series.


Allelopathy was used by Chung et al. Soil chemical properties, including nutrient contents, soil pH, water, and electrical conductivity, when used as covariates or predictors in calibration and validation partial least squares regression models, provided new insights into the variation structure and prediction of crop performance. Aiton; PSR23a semi domesticated oilseed crop.

The greenhouse experiment was to determine the effect of siam weed extract edfect the germination and growth of the seeds of the crop and weed species in a soil medium. According to Maciasthe application of naturally occurring allelopathic substances which are ecologically friendly to agricultural practice is a promising method to control weeds.

Ahn and Chung and Chuo used allelopathy as an ecological control tool against several weeds in rice. Agronomy Journal 99, By contrast, effects of sowing date, cultivar and their interaction were significant for emergence percentage. Germination, seedling emergence, accelerated aging, electrical conductivity, potassium leaching, and seed health tests were performed before storage and at 4, 8, and 12 months of storage.

Siam weed plants comprising of leaves and stems were cut, pounded with pestle and mortal. Separate T-tests were done on the treated and untreated plants, according to the type of plant.

The seed rate significantly influenced myriad different variables that included: