仁用杏叶片提取物对8种杂草种子萌发和幼苗生长的化感效果  

Allelopathy of Aqueous Extracts from Kernel Apricot Leaves on Seed Germination and Seedling Growth of 8 Types of Weeds

作　　者：邹晓锦[1] 孙占祥[1] 于涛[1] 杨宁[1] 蒋爱丽[2] 姜淼[3] 

机构地区：[1]辽宁省农业科学院环境资源与农村能源研究所,沈阳110161 [2]东港市农业技术推广中心,辽宁丹东118300 [3]沈阳市气象局,沈阳110000

出　　处：《农药》2013年第6期454-456,463,共4页Agrochemicals

基　　金：国家自然基金面上项目(31170407):科尔沁沙地南缘旱作农田农林复合系统物种间配置生态效应研究;沈阳市科技攻关项目:沈阳市区保护地蔬菜环保型土肥管理技术研究(F10-205-1-45)

摘　　要：[目的]探索仁用杏叶片提取液对8种杂草的抑制效果。[方法]采用室内生物测定的方法,研究了仁用杏叶片提取液对禾本科杂草和阔叶杂草的化感综合效应。[结果]仁用杏叶片提取液对禾本科杂草及阔叶杂草均有一定抑制作用,随着提取液质量浓度升高,对禾本科杂草和阔叶杂草种子萌发和幼苗生长的抑制作用逐渐增大,对根长的抑制作用大于种子萌发率、苗高和鲜质量指标。提取液质量浓度为200 g/L时,对禾本科杂草化感综合效应SE达到-0.13--0.21,对阔叶杂草的SE达到-0.25-0.38,阔叶杂草比禾本科杂草敏感。[Aims] The aim of the research was to explore the inhibition on 8 types of weeds of aqueous extracts from kernel apricot leaves. [Methods] The effects of the allelopathy of aqueous extracts from kernel apricot leaves on seed germination and seedling growth of 8 types of weeds were checked by indoor experiment. [Results] The aqueous extracts from kernel apricot leaves had obvious inhibitory effects on those grass and broadleaves weeds. The inhibitory effects of seeds germination, root length, seedling length and the fresh weight of root and seedling decreased with increasing of kernel apricot leaves contents of aqueous extracts. When the tested concentration was 200 g/L, the integrated allelopathy of aqueous extracts on grass weed and broadleaves weed was -0.13 - -0.21 and -0.25-0.38, separately. By synthetically effect, broadleaves weed was more sensitive to aqueous extracts from kernel apricot leaves than grass weed.

关 键 词：化感作用 杂草 水浸提液 

分 类 号：S451[农业科学—植物保护]