摘要
研究喜马拉雅紫茉莉种子水浸提液对绿豆、小麦种子萌发和幼苗生长的影响,分别用浓度为0.0125、0.025、0.05、0.1g/ml的喜马拉雅紫茉莉种子水浸提液处理绿豆、小麦种子,测定其种子萌发及幼苗生长状况。结果表明,不同浓度的喜马拉雅紫茉莉种子水浸提液对绿豆和小麦种子萌发和幼苗生长均存在不同程度的抑制作用。其中,对绿豆发芽率的平均化感效应(RI)为-4.45,发芽势的为-7.23;对小麦发芽率的平均RI值为-8.05,发芽势的为-9.12;对绿豆苗高的平均RI值为-49.9,根长的为-71,根数的为-50;对小麦苗高的平均RI值为-34.7,根长的为-49.1,根数的为-52.7。可见,喜马拉雅紫茉莉种子水浸提液对不同作物的化感作用不同,对同一作物的不同发育时期化感作用也不同,对幼苗期的影响显著大于种子萌发期。
This trial studied the impact of the seed germination and seeding growth of green beans and wheat on Aqueous Extracts of Mirabilis himalaca（Edgew.） seeds.With a concentration of 0.0125,0.025,0.05,0.1g/Ml of aqueous extract dealed with mung bean and wheat seeds,seed germination and seedling growth conditions were determined.The results show that different concentrations of aqueous extracts of Mirabilis himalaca（Edgew.） Heim.seeds have different effect of restraining the seed germination and seedling growth of mung bean and wheat.Mung bean germination rate average RI value is-4.45,germination potential-7.23;wheat germination rate average RI value is-8.05,germination potential-9.12;mung bean seedling height average RI value is-49.9,root length,-71,root number-50;average RI value is-34.7 wheat seedling height,root length to-49.1,root number-52.7.So,the allelopathy effects of Mirabilis himalaca（Edgew.） seeds to different crop were different.The allelopathy effects of different developmental stages of the same crop are also different,the effects in the seedling stage are significantly greater than the seed germination stage.
出处
《中国园艺文摘》
2012年第11期22-24,104,共4页
Chinese Horticulture Abstracts
基金
西藏自治区科技厅项目:西藏濒危藏药材人工种植技术研究与示范(2010KJGX01-36)
关键词
喜马拉雅紫茉莉
化感作用
种子萌发
幼苗生长
Mirabilis himalaca（Edgew.） Heim.
Allelopsthy
seed germination
seeding growth.
