热带作物学报2012，Vol.33Issue(4)：704-708,5.DOI:10.3969/j.issn.1000-2561.2012.04.023
酢浆草(Oxalis corniculata)植株水浸提液对萝卜和生菜的化感效应
The Allelopathy of Plant Aqueous Extract of Oxalis corniculata to Radish and Lettuce
摘要
Abstract
In order to explore the allelopathic effects of invasive plants Oxalis corniculata and its possible physiological mechanism, germination and seedling growth of radish and lettuce seeds and plant protection of enzyme activity were measured after treated with different concentrations plants aqueous extracts of Oxalis comiculata. Obvious allelopathic inhibition of plant aqueous extract of Oxalis comiculata to radish and lettuce was observed. Radish and lettuce seed germination and seedling growth were inhibited and.the degree of inhibition was enhanced with increase in plant aqueous extract concentration. This inhibition in radicle performance was stronger than hypocotyl. Different variation was observed in the activities of various protective enzymes of radish and lettuce seedling after treated with different concentrations plants aqueous extracts of Oxalis comiculata. POD and CAT activity continued to increase with increasing concentration; the low concentration of extract processing can be significantly enhanced CAT activity; POD activity continued to rise with increase in concentration; the activity of SOD did not show obvious regularity. MDA content continued to rise with increasing concentration.关键词
酢浆草/植株水浸提液/化感效应Key words
Oxalis comiculata/Plant aqueous extract/Allelopathy分类
农业科技引用本文复制引用
张志忠,蒋云丹,孙志浩,蓝茂锋..酢浆草(Oxalis corniculata)植株水浸提液对萝卜和生菜的化感效应[J].热带作物学报,2012,33(4):704-708,5.基金项目
福建省科技重大专项项目(No.2008NZ0002-1) （No.2008NZ0002-1）
福建省自然科学基金项目(No.2011J01083). （No.2011J01083）
