核桃枝叶水溶物的化感作用研究

Study on Allelopathy of Aqueous Extracts from Walnut Leaf and Stem

通过核桃枝叶水溶物对种子萌发和幼苗插条生长的研究结果表明,核桃枝叶水溶物对绿豆种子的萌发具有抑制作用,且核桃叶的化感作用强于核桃枝条的化感作用,处理间对种子萌发的影响是随着浓度的增大抑制作用增强。不同浓度核桃枝的水溶物对黄瓜幼苗插条增高和最长根长度的化感抑制作用随浓度增大而增强,对发根量的化感抑制作用则相反。

By study of water e seed germination, the results effects on seed germination of The higher the concentration With the concentration of aqu strong on the heightening and centration increasing, the inhi xtracts from walnut leaf and stem on the seedling quickset growth and showed that water extracts from walnut leaf and stem have inhibited Phaseolus aureus. And allelopathy of walnut leaf is bigger than stem＇s. of aqueous extracts on seed germination, the larger the inhibition is. eous extracts from walnut stem increasing, the inhibited allelopathy get the longest root length of cucumber seedling quickset, while the con bited effects get weak.