Occurrence and effects of stripe rust in wheat spikes in New Zealand
作者:
M.G. Cromey,
期刊:
New Zealand Journal of Crop and Horticultural Science
(Taylor Available online 1989)
卷期:
Volume 17,
issue 2
页码: 155-158
ISSN:0114-0671
年代: 1989
DOI:10.1080/01140671.1989.10428024
出版商: Taylor & Francis Group
关键词: Puccinia striiformisf. sp.tritici;Triticun aestivum;survey;grain weight;yields;wheat;stripe rust
数据来源: Taylor
摘要:
Infection of wheat (Triticum aestivumL.) spikes with stripe rust (Puccinia striiformisWestend, f. sp.tritici) was widespread in crops of susceptible cultivars in the 1983/84 and 1984/85 seasons. In the 1983/84 season in Canterbury, infection was restricted to the cultivars Rongotea, Kopara, and Oroua. In Southland, most crops of ‘Tiritea’ and ‘Takahe’ inspected were infected. Percentage infection of florets was lower in both regions in the 1984/85 season. The lemmas were most often infected, but in severely infected florets the paleas and glumes were also often infected. Grains in infected florets weighed up to 77% less than grains in uninfected florets. The weight loss was related to the severity of infection of individual florets.
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