文献类型：期刊文献

中文题名：尾巨桉纯林土壤浸提液对4种作物的生理影响

英文题名：Physiological responses of four crops in aqueous extracts of soil from Eucalyptus urophylla × Eucalyptus grandis forests

作者：郝建[1,2] 陈厚荣[2] 王凌晖[1] 秦武明[1] 曾冀[2] 张明慧[3]

第一作者：郝建

机构：[1]广西大学林学院;[2]中国林业科学研究院热带林业实验中心;[3]广西国有派阳山林场

年份：2011

卷号：28

期号：5

起止页码：823-827

中文期刊名：浙江农林大学学报

外文期刊名：Journal of Zhejiang A & F University

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：广西自然科学基金资助项目(桂科自0728018)

语种：中文

中文关键词：森林生态学;尾巨桉;化感作用;生理特性;土壤

外文关键词：forest ecology; Eucalyptus urophylla x Eucalyptus grandis; allelopathy; physiological characteristics ; soil

分类号：S792.39

摘要：用尾巨桉Eucalyptus urophylla×E.grandis纯林土壤水浸提液处理菜心Brassica parachinensis,早熟白菜Bras-sica pekinensis,水稻Oryza sativa和萝卜Raphanus sativus幼苗,研究浸提液对这4种作物的化感作用。结果表明:浸提液对菜心、早熟白菜、水稻和萝卜叶绿素质量分数、脯氨酸质量分数、可溶性糖质量分数均有显著影响。随着浸提液浓度的升高,受体植物叶片的叶绿素质量分数均降低;脯氨酸质量分数呈现先升高后降低的趋势;菜心、早熟白菜、萝卜可溶性糖质量分数也是呈下降趋势,而水稻的可溶性糖质量分数却先升高后降低。根据所测定指标综合判断,水稻对尾巨桉纯林土壤水浸提液中化感物质的抗性比其他3种作物强。这说明尾巨桉纯林土壤中存在某些化感物质,因受体植物种类不同其化感效应有所差别。
The allelopathic effect of Eucalyptus urophylla x Eucalyptus grandis forest soil on the content of chlorophyll, proline, and soluble sugar was tested by treating growth medium of four crops： Brassica parachinensis （false pakchoi）, Brassica pekinensis （Peking cabbage）, Oryza sativa （rice）, and Raphanus sativus （radish） with aqueous extracts of the soil. Results showed highly significant differences （P〈0.01） on content of chlorophyll, proline, and soluble sugar for the four crop plants. With an increase in aqueous extract concentration, chlorophyll content in receptor plant leaves decreased. Also, proline c^htent rose first and then decreased as did soluble sugar of rice. Soluble sugar content from the four crop plants also declined. Thus, allelochemical resistance of rice was stronger than the other crops, and it was certain that there（were some allelochemicals in the soil that caused different effects on the four species. [Ch, 3 tab. 23 ref.]