红三叶(Trifolium pratense L.)浸提液对种子的化感效应  

Allelopathy Effects of Aqueous Extracts of Red Clover on Seeds Germination

作　　者：蔡明[1] 张美艳[2] 牟兰[1] 薛祝林[3] 岳信龙[4] 黄必志[2] 

机构地区：[1]兰州大学草地农业科技学院,甘肃兰州730020 [2]云南省草地动物科学研究院,昆明650212 [3]中国农业大学动物科技学院,北京100019 [4]云南农业大学动物科技学院,昆明650201

出　　处：《种子》2016年第1期11-14,共4页Seed

基　　金：国家肉牛牦牛产业技术体系(编号:CARS-38);云南省科技计划项目(编号:2013FZ 173)

摘　　要：以普通红三叶种子为受体,采用培养皿滤纸法,初步研究了红三叶对6种不同浓度(0.025,0.05,0.075,0.10,0.15,0.20g/mL)叶浸提液的化感响应。结果表明,红三叶的叶浸提液对其种子的发育具有不同程度的化感影响。红三叶不同浓度的叶浸提液对种子发芽势表现出"低促高抑"的浓度效应,而对发芽率表现出一定的抑制作用;红三叶不同浓度的叶浸提液对胚根长具有极强的抑制作用(p<0.01),而对下胚轴长既具有抑制作用又有促进作用,且在一定浓度范围内表现出"低促高抑"的现象。Test ordinary red clover seed receptors, by the petri dish, designed to （0.025,0.05,0.075, 0.10,0.15,0.20 g/mL）six different concentrations of aqueous extracts to study the red clover leaf extract their own seed allelopathic effects.The results show that： red clover leaf extract on the devel- opment of seeds with different degree of allelopathic effects.Different concentrations of red clover leaf on the seed germination potential leaching solution has a low to promote high suppression effect and has inhibitory effect on germination rate;different concentrations of red clover leaf extract allelochem- icals on seed radicle has a strong inhibitory effect （p〈0.01） ;And has both inhibition and promote role to hypocotyl length,and in the certain concentration range show the phenomenon of low to promote and high to suppression.

关 键 词：种子萌发 化感作用 叶浸提液 红三叶 

分 类 号：S541.2[农业科学—作物学]