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首页> 外文期刊>Indian Journal of Weed Science >Allelopathic potential of sunflower (Helianthus annuus) against seed germination in wild mustard (Sinapis arvensis) and foxtail (Setaria viridis).
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Allelopathic potential of sunflower (Helianthus annuus) against seed germination in wild mustard (Sinapis arvensis) and foxtail (Setaria viridis).

机译：向日葵（ Helianthus annuus ）对野生芥菜（ Sinapis arvensis ）和狐尾（ Setaria viridis ）种子发芽的化感潜力。

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摘要

Greenhouse and laboratory experiments were conducted to determine the allelopathic effects of sunflower on Sinapis arvensis and Setaria viridis with a view to explore its weed seed inhibition potential. Germination of both the weeds was reduced with increasing concentration of sunflower extract and a dose-response relationship was observed. These curves provided information on LC50 and inhibition threshold concentrations of sunflower extracts. Sunflower also inhibited the growth of both the weeds in terms of root and shoot length and seedling dry weight. Inhibition of root growth was greater than that of shoot growth. Similar observations were made when the test weeds were grown in soil amended with different concentrations of sunflower extract. Reduction of chlorophyll content and water loss in the growing seedlings was also observed. The study, therefore, revealed that sunflower exerted an inhibitory effect on the growth and development of both the weeds and can be further explored in future for weed management strategies.
机译：为了确定向日葵对杂草种子的抑制潜力，进行了温室和实验室实验，以确定向日葵对 Sinapis arvensis 和 Setaria viridis 的化感作用。随着向日葵提取物浓度的增加，两种杂草的发芽减少，并且观察到剂量-反应关系。这些曲线提供了有关向日葵提取物的LC 50 和抑制阈值浓度的信息。向日葵在根和茎长以及幼苗干重方面也抑制了两种杂草的生长。根生长抑制作用大于芽生长抑制作用。当试验杂草在用不同浓度的向日葵提取物改良的土壤中生长时，进行了类似的观察。还观察到生长幼苗中叶绿素含量的减少和水分流失。因此，该研究表明向日葵对两种杂草的生长和发育均具有抑制作用，并且可以在今后进一步研究杂草治理策略。

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