三种植物寄生线虫对玉米和大豆的相互作用。

Interaction of three plant-parasitic nematodes on corn and soybean.

作者信息

Dickson D W, McSorley R

出版信息

J Nematol. 1990 Oct;22(4S):783-91.

PMID:19287797

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2619101/

Abstract

Interaction of Belonolaimus longicaudatus, Meloidogyne incognita, and Pratylenchus brachyurus on corn and B. longicaudatus, M. incognita, and Heterodera glycines on soybean was investigated in micropiots during two seasons for corn and one season for soybean. Changes in population densities and effects on plant growth of each nematode on corn or soybean alone and in mixed culture were compared. No interactions occurred on corn in 1987. In 1988, midseason population densities of B. longicaudatus were greater in corn plots infested with M. incognita (P </= 0.05), but at harvest, population densities or B. longicaudatus were less in corn plots infested with P. brachyurus (P </= 0.05). Except for stalk weight at harvest, plant growth was not affected by any treatment. In soybean, midseason densities of M. incognita were increased in combination with H. glycines (P </= 0.05), but this trend reversed at harvest. Soybean yield was reduced in plots infested with H. glycines (P </= 0.001), whereas B. longicaudatus or M. incognita had no effect on plant growth either singly or in mixed culture.

摘要

在两个玉米种植季和一个大豆种植季中，利用微型小区对长针线虫、南方根结线虫和短体线虫在玉米上的相互作用，以及长针线虫、南方根结线虫和大豆胞囊线虫在大豆上的相互作用进行了研究。比较了每种线虫单独以及混合培养时在玉米或大豆上的种群密度变化及其对植物生长的影响。1987年在玉米上未发现相互作用。1988年，在受南方根结线虫侵染的玉米小区中，长针线虫的季中种群密度更大（P≤0.05），但收获时，在受短体线虫侵染的玉米小区中，长针线虫的种群密度更低（P≤0.05）。除收获时的茎重外，任何处理均未影响植物生长。在大豆中，南方根结线虫与大豆胞囊线虫混合时季中密度增加（P≤0.05），但这种趋势在收获时逆转。受大豆胞囊线虫侵染的小区大豆产量降低（P≤0.001），而长针线虫或南方根结线虫单独或混合培养时对植物生长均无影响。