Suppressive Effect of Brassica juncea on the Root-Lesion Nematode （ Pratylenchus penetrans）  

作　　者：F. Sakuma K. Hashizume N. Kondo 

机构地区：[1]Grass and Forage Crop Research Group, Snow Brand Seed Co., Ltd, Naganuma 069-1464, Japan [2]Grass and Forage Crop Research Group, Snow Brand Seed Co., Ltd, Chiba 263-0001, Japan [3]Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan

出　　处：《Journal of Agricultural Science and Technology(A)》2011年第5期621-628,共8页农业科学与技术（A）

摘　　要：Incorporation of sulfur-rich crucifer tissues into soil is known to suppress a variety of soil-bome plant pathogens and pests. The potentials of using Brassica juncea as green manure to kill the root lesion nematode Pratylenchus penetrans m soil and to decrease damages to subsequent crops were assessed in field and pot experiments. In the first trial, green manures containing B. juncea were grown and incorporated during spring to summer 2009. Japanese radish was then cultivated in each plot. In the second trial in spring 2010, green manure was grown and incorporated during summer to autumn 2009, and greater burdock was cultivated in pots containing soil sampled from each plot. Neither trial showed clear effects on nematode populations in the soil. However, in the first trial, Japanese radish grown following a B. juncea breeding line with a high content of sinigrin had a lower root lesion index and a higher number of marketable taproots than grown in the fallow soil. In the second trail, greater burdock cultivated in pots following incorporation ofB. juncea had a lower root lesion index with the incorporation of white mustard, which is widely used as a landscape plant. These findings suggest that B. juncea used as green manure can potentially decrease damage to subsequent crops caused by the root-lesion nematode, although it had no positive effect on decreasing populations of the root-lesion nematode in the soil.

关 键 词：BIOFUMIGATION green manure Brassicajuncea Pratylenchuspenetrans root-lesion nematode  soil. 

分 类 号：S565.4[农业科学—作物学] Q959.17[生物学—动物学]