Pathotypes ofPuccinia graminisf. sp.triticidetected in South Africa during 1991–1997
作者:
W.H.P. Boshoff,
B.D. van Niekerk,
Z.A. Pretorius,
期刊:
South African Journal of Plant and Soil
(Taylor Available online 2000)
卷期:
Volume 17,
issue 2
页码: 60-62
ISSN:0257-1862
年代: 2000
DOI:10.1080/02571862.2000.10634868
出版商: Taylor & Francis Group
关键词: Stem rust;annual surveys;pathotypes
数据来源: Taylor
摘要:
A stem rust survey is conducted annually in the major bread wheat and triticale producing areas of South Africa to monitor pathogenic variability inPuccinia graminisf. sp.tritici.During 1991 to 1996 the incidence of stem rust on susceptible wheat and triticale cultivars and lines planted in trap nurseries was low. No stem rust was found during 1997. The low incidence of stem rust was also evident by the absence of the disease in commercial wheat and triticale fields. During the survey period stem rust pathotypes 2SA4, 2SA36 and 2SA100 were detected on bread wheat and 2SA102 and 2SA103 on triticale.
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