黄花棘豆水浸提液对3种植物种子萌发和幼苗生长的影响

研究了黄花棘豆（Oxytropis ochrocephala）的水浸提液对垂穗披碱草（Elymus nutans）、醉马草（Achnatherum inebrians）、多叶老芒麦（Elymus sibiricus cv.‘Duoye’）种子萌发和幼苗生长的影响。结果表明，不同浓度黄花棘豆水浸提液对种子的萌发影响不同，除4％和20％的黄花棘豆水浸提液对醉马草种子萌发无显著影响外，其他各浓度的提取液对3种植物的发芽率均有显著影响。4％黄花棘豆的水浸提液对醉马草根长无显著影响，其他各浓度的提取液都抑制了3种植物幼苗的生长。4%、20%和100％的黄花棘豆水浸提液对3种植物影响的综合效应均表现为抑制作用。

Effects of aqueous extracts from Oxytropis ochrocephala on seeds germination and seedling growth of three plants

A allelopathy experiment was conducted to determine the effects of aqueous extracts from Oxytropis ochrocephala on seeds germination and seedling growth of Elymus nutans,Achnatherum inebrians and E.sibiricus cv ’Duoye’ by using TP in this study.This study showed that the germination percentages,radicle length and plumule length of three plants reduced as the concentration of aqueous extracts from O.ochrocephala increased.4% and 20% aqueous extracts did not affect on seeds germination of A.inebrians,but other treatments significant affected seed germination of three plants(P<0.05).4% the aqueous extracts had no significant effect on seedling growth of A.inebrians(P>0.05),but other treatments had significant effect on seedling growth of three grasses(P<0.05).This study suggested that the different concentration aqueous extracts from O.ochrocephala included 4%,20% and 100% showed an inhibitive effect on three plants.