|Table of Contents|

COMPARISONS AND ANALYSES ON THE METHODS OF EVALUATING TOLERANCE TO SOYBEAN WHITE MOULD(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2007年05期
Page:
728-731
Research Field:
Publishing date:

Info

Title:
COMPARISONS AND ANALYSES ON THE METHODS OF EVALUATING TOLERANCE TO SOYBEAN WHITE MOULD
Author(s):
SUN Ming-ming1; HAN Ying-peng1; CHEN Hao2; TENG Wei-li1; LI Wen-bin1
1. Soybean Research Institute /Key Laboratory of Soybean Biology of Chinese Education Ministry，Northeast Agricultural University，Harbin 150030;
2.Industrial Crops Institute,Heilongjiang Academy of Agricultural Sciences,Harbin 150086
Keywords:
Soybean white mold; Evaluating methods; Comparison; Analysis
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.05.018
Abstract:
The methods of evaluating tolerance of soybean cultivars to soybean white mould are very important for selection of soybean variety with white mould resistance.Four methods including mycelia inoculation of cotyledons，stems，detached leaf assays and response to oxalic acid were discussed.The results showed that after 5 days inoculating in cotyledons，all of the cotyledons became kraurotic；susceptible cultivar Hefeng 25 became blasted and yellow，and white mycelia appeared in inoculation part 10 days later；all plants with white mycelia 15 days later；all plants with white mycelia died 20 days later.However，the above symptoms appeared later in tolerant cultivar MAPLE ARROW and mortality was low.Mycelia inoculation of stems and detached leaf assays basically showed the main processes and characters of soybean white mould，which were effective methods to simulate field disease processes.The results of response to oxalic acid showed significant differences between Hefeng 25 and MAPLE ARROW，it was a convenient and high veracity method for screening of mass germplasm resources of soybean.

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Last Update: 2014-10-20