芝麻对稗草的化感作用及其大田生态价值评价
Allelopathy of Sesame to Echinochloa crusgalli(L.) Beauv and Its Evaluation on Field Ecological Value
钱久李 1刘子艳 2黎华寿3
作者信息
- 1. 广东工程职业技术学院,广东广州510520;农业部热带农业环境重点开放实验室,广东广州510642
- 2. 唐山工业职业技术学院,河北唐山063020
- 3. 农业部热带农业环境重点开放实验室,广东广州510642
- 折叠
摘要
[目的]验证古农书中记载的芝麻化感作用,筛选出适宜推广的芝麻品种.[方法]选择10个常规芝麻品种,采用实验室生物培养测定与大田种植相结合的方式,构建综合生态价值评价体系.[结果]赣芝3号对稗草抑制作用最强,与对照相比稗草根长减少了20.270 mm,差异显著;S05小区有8种杂草未被发现或极少发现,对杂草品种抑制效应最强;品种间大田多样性指数差异较大;芝麻产量最高的品种为武宁里;间种增产效果品种间差异不显著.[结论]10个芝麻品种间化感作用存在差异,综合生态效益最大的为武宁里黑芝麻.
Abstract
[Objective] To verify the allelopathy of sesame in ancient agriculture literatures,and to screen the variety suitable for generalization.[Method] Ten varieties of sesame were selected.The methods of laboratory bioassay and field planting were adopted;comprehensive ecological value evaluation system was constructed.[Result] The variety of Ganzhi 3 had the greatest inhibitory effects on E.crusgalli;root length decreased by 20.270 mm compared with the control,showing significant differences.S05 had the strongest inhibitory effects on weeds,and only 8 kinds of weeds were not found.Field diversity index had relatively great differences among varieties.Wuningli black sesame had the highest yield.There were no significant differences between the varieties of sesame.[Conclusion]There are differences in allelopathy between the varieties of sesame.Wuningli black sesame has the greatest comprehensive ecological benefit.
关键词
芝麻/化感作用/生态价值/评价Key words
Sesame/Allelopathy/Ecological value/Evaluation引用本文复制引用
基金项目
国家重大基础研究项目(973)(2011CB100400-G)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据