大蒜鳞茎浸提液对金秋红二号菜苔化感作用的初步研究

Preliminary Study on Allelopathy of the Extracts from Allium Sativum L.Bulbs on Jin Qiuhong NO.2 Brassica parachinensis L.H.Bailey

为了解大蒜鳞茎浸提液对种子萌发和幼苗生长的化感作用,实验采用不同浓度大蒜鳞茎浸提液对金秋红二号菜苔的种子进行处理,观察对种子萌发、幼苗根长、茎长和幼苗根重、苗重的影响.实验结果表明,大蒜鳞茎浸提液对金秋红二号菜苔种子的发芽率和发芽指数的化感作用随着大蒜鳞茎浸提液浓度的升高而增强;大蒜鳞茎浸提液对金秋红二号菜苔幼苗的根和苗都有抑制作用,且对根的化感作用强于苗的化感作用.

To understand the allelopathy of the extracts from Allium Sativum L.bulbs on seed germination and seedling growth,this experiment used different concentrations of the extracts from Allium Sativum L.bulbs on the Jin Qiuhong NO.2 Brassica parachinensis L.H.Bailey to observe its influence on seed germination,seedling root length,stem length and root weight of seedlings.The results showed as follows：with the increase of the extracts from Allium Sativum L. bulbs,the influence of that on seed germination rate and germination index of Jin Qiuhong NO.2 was enhanced; the extracts from Allium Sativum L.bulbs had inhibitory effect on both seedling roots and seedlings; the allelopathy on root was stronger than that on seedlings.