|Table of Contents|

METHOD OF IDENTIFYING RESISTANCE TO PURPLE SEED STAIN(CERCOSPOR A KIKICHII)OF SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2002年02期
Page:
96-100
Research Field:
Publishing date:

Info

Title:
METHOD OF IDENTIFYING RESISTANCE TO PURPLE SEED STAIN(CERCOSPOR A KIKICHII)OF SOYBEAN
Author(s):
Zhu Zhendong 　Li Yilin 　Qiu Lijuan 　Li Xianghua 　Chang Ruzhen 　Han Chuny u
Insti tute of Crop Germplasm Resources , CA AS , Bei jing 100081
Keywords:
Soybean ; Purple seed stain ; Resistance identification
PACS:
S 435.651
DOI:
10.11861/j.issn.1000-9841.2002.02.0096
Abstract:
Natural incidence of purple seed stain incited by Cercospora kikuchii w as investig ated in 37 soybeancultivars belonging to MG 0 -Ⅷ .The results show ed that incidence of purple seed stain w as affected by weathercondition , maturing stage and resistance of soybean cultivars .Late -maturing cultivars appearing resistance tonatural infection mig ht be due to disease escape rather than genetic resistance .45 soybean cultiv ars w ereidentified for resistance to seed infection by artificial inoculation w ith C .kikuchii in screenhouse in 1998 and ing reenhouse in 1999 .Sig nificant ly resistant difference to purple seed stain among cult ivars w as discovered in tw otests .How ever , average value of disease index of 45 cultivars fo r greenhouse test w as much low er than that forscreenhouse test .In order to accurately evaluate the resistance of soybean to purple seed stain , It w as suggested that the maturing times of cultivars are synchronized by picking of f flowers of early -maturing cultivars at theearly flowering stage , tag and investigate the inoculated pods .In addit ion , high susceptible cultivars are need forcont rol .The resistant cultivars must be identif ied for two o r more times .

References:

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Last Update: 2016-12-30