黄花菜根浸提液对耐抽薹生菜化感作用的初步研究  

Allelopathic Study on Aqueous Extract From Hemerocalliscis citrina Baroni on Lettuce

作　　者：范适[1] 宋光桃[1] 刘飞渡[1] 郭锐[1] 

机构地区：[1]湖南环境生物职业技术学院园林学院,湖南衡阳421005

出　　处：《湖南生态科学学报》2015年第4期7-11,共5页Journal of Hunan Ecological Science

基　　金：湖南省教育厅科技计划项目(编号:11C0472)

摘　　要：为了解黄花菜浸提液的化感作用,本实验采用不同浓度黄花菜根浸提液对耐抽薹生菜的种子萌发、根长、茎长和幼苗鲜重的影响.结果表明,经黄花菜根浸提液处理后的生菜种子其发芽率和发芽指数随浸提液浓度的升高而显著降低,并且对生菜幼苗根的抑制作用强于对其幼苗茎的抑制作用.高浓度黄花菜根浸提液对生菜种子胚根和幼苗的生长表现出较强的抑制作用,而低浓度黄花菜根浸提液表现出促进作用.图4,表3,参14.Allelopathy of Hemerocallis citrina Baroni was studied by measuring the seed germination rate, germination potential, germination index, root length, stem length, root weight and stem weight with lettuce wa- tered with the aqueous extract of H. citrina Baroni. The results were following：different concentration of H. cit- rina Baroni aqueous extract significantly inhibited the seed germination. Higher concentration （0.02 g/ml） of H. citrina Baroni aqueous extract significantly inhibited the seedling growth, while low concentration （0. 005 g/ml） of H. citrina Baroni aqueous extract has strong stimulating effect on the seedling growth.4figs. ,3tabs. , 14refs.

关 键 词：黄花菜 化感作用 生菜 种子发芽 幼苗生长 

分 类 号：S644.3[农业科学—蔬菜学]