Partial resistance of oats to P. coronata f.sp. avenae

Brake V.M. and Irwin J.A.G. (1992) Partial resistance of oats to P. coronata f.sp. avenae. Australian Journal of Agricultural Research, 43 5: 1217-1227. doi:10.1071/AR9921217


Author Brake V.M.
Irwin J.A.G.
Title Partial resistance of oats to P. coronata f.sp. avenae
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1992-01-01
Sub-type Article (original research)
DOI 10.1071/AR9921217
Open Access Status
Volume 43
Issue 5
Start page 1217
End page 1227
Total pages 11
Language eng
Subject 1100 Agricultural and Biological Sciences
Abstract Several oat cultivars (Avena sp.) were inoculated on the lst, 2nd and 4th leaves with race 264 of P, coronata f. sp. avenae to characterize and determine components of partial resistance (slow rusting). Panfive was the only cultivar to exhibit partial resistance. It gave a moderately susceptible reaction but expressed a lower infection efficiency, fewer and smaller uredia, and a lower spore production compared to the susceptible cultivars Algerian and Sual for all three leaf ages tested. In the field this cultivar has consistently shown partial resistance. Garry, a cultivar reported to be slow rusting but highly susceptible in the field in Queensland, expressed a significantly lower infection efficiency and uredium density than Algerian and Sual on the first leaf. Older leaves of Garry, however, did not show a significant reduction in the components of partial resistance when compared to Algerian and Sual. Results suggested that uredium density gave the best indication of partial resistance across the three leaf ages tested for Panfive. A significant difference was present between uredium densities on upper and lower surfaces of the 4th leaf only for the susceptible and partially resistant cultivars. In general, the resistance of all cultivars tended to increase with an increase in leaf age.
Keyword Oats
P. coronata
Partial resistance
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 10 times in Scopus Article | Citations
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