核桃青皮提取物对几种作物幼苗生长的影响

用生物鉴定法研究了核桃青皮水提液及醇提液对萝卜、绿豆、黄瓜、小麦等作物幼苗生长的影响。结果表明 ,核桃青皮的两种提取液对几种供试种子的萌发率、幼苗的苗高和根长主要表现为抑制作用。提取物浓度越大 ,抑制种子萌发的作用越强 ;且水提液的抑制作用比醇提液的抑制作用强。提取液对供试作物地上部分的抑制作用强于对地下部分的抑制作用。结果还显示 ,提取液稀释到一定浓度时 ,对种子的萌发有不同程度的促进作用

The Effect of Walnut Peel′s Extracts on Seedling Growth of Some Crops

It was studied that the allelopathic effect of walnut peel`s water and ethanol extract on some economic crop such as wheat, green bean, cucumber and radish by biological appraisal. The results indicated that the two abstracted solution from walnut peel had inhibitive effect on the seed germination, sprouts growth and root length of provided crops. The more concentration of extract, the stronger of inhibiting the seed germination; the inhibited effect of solution extracted by water is stronger than the solution extracted by ethanol. The results showed that the extracts has also promotive effect to some extent on the seed germination when it is diluted to certain range.