堆制番茄秸秆浸提液对黄瓜和大白菜的化感作用  

Allelopathic effects of anaqueous extract from composted tomato residues on the growth of cucumber and Chinese cabbage

作　　者：徐勇峰[1,2] 黄斌[2] 朱陈名 朱咏莉[2] 李萍萍[1] 

机构地区：[1]南京林业大学南方现代林业协同创新中心,江苏南京210037 [2]南京林业大学生物与环境学院,江苏南京210037

出　　处：《浙江农林大学学报》2017年第2期276-282,共7页Journal of Zhejiang A&F University

基　　金："十二五"国家科技支撑计划项目(2014BAD08B04);江苏省自然科学基金资助项目(BK20131424);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：以黄瓜Cucumis sativus和大白菜Brassica campestris ssp.pekinensis等2种蔬菜作为受体,研究堆制后不同质量浓度(10.0,20.0,30.0,40.0和50.0 g·L^(-1))番茄Lycopersicon esculentum秸秆浸提液对种子萌发和幼苗生长的影响,探讨堆制番茄秸秆的化感效应。结果表明:堆制后的番茄秸秆浸提液对黄瓜和大白菜种子的萌发和幼苗生长存在不同程度的化感作用。低质量浓度(10.0~20.0 g·L^(-1))浸提液可提高黄瓜和大白菜种子发芽率,促进苗长增长和鲜质量增加,而高质量浓度(40.0~50.0 g·L^(-1))则对黄瓜和大白菜的发芽率、发芽指数以及黄瓜幼苗苗长和鲜质量具有一定的抑制作用。但不论低质量浓度或高质量浓度浸提液对黄瓜和大白菜幼苗根的生长均表现为抑制作用,尤其对黄瓜根长的抑制作用达到显著水平(P<0.05)。To understand the allelopathic effects of composted tomato residues on cucumber and Chinese cabbage vegetables, five concentrations（10.0, 20.0, 30.0, 40.0, and 50.0 g·L^-1） of extracts from composted tomato residues and a control（ck）（0.0 g·L^-1）were applied to germinating seeds and seedlings during growth and then employed seed germination bioassay method to measure the germination rate, germination rate, seedling length,and fresh weight of cucumber and Chinese cabbage and finally evaluated. Results showed that the germination rate, seedling length, and fresh weight of cucumber and Chinese cabbage were promoted at low aqueous extract concentrations（10.0-20.0 g·L^-1）. Also, the germination rate and germination index of cucumber and Chinese cabbage as well as the seedling length and fresh weight of cucumber were inhibited at a high concentration（〉40.0 g·L^-1）. Root growth of cucumber and Chinese cabbage for all concentrations was inhibited. Also, the root length of cucumber treated with extracts was significantly lower（P〈0.05） than ck. Overall, the extracts from composted tomato residues showed some inhibitory effect on cucumber seedling growth and a certain role in promoting on the growth of Chinese cabbage seedlings, but both of them did not reach the significant level.Thus, to a certain extent, the tomato residues could alleviate its inhibition effect after composting.

关 键 词：植物学 番茄秸秆 堆制 水浸提液 化感作用 

分 类 号：S154.4[农业科学—土壤学] Q946[农业科学—农业基础科学]