Development of a glasshouse assay for screening for partial resistance to P. vignae in cowpea

Davis R.I., Irwin J.A.G. and Imrie B.C. (1993) Development of a glasshouse assay for screening for partial resistance to P. vignae in cowpea. Australian Journal of Agricultural Research, 44 4: 755-762. doi:10.1071/AR9930755


Author Davis R.I.
Irwin J.A.G.
Imrie B.C.
Title Development of a glasshouse assay for screening for partial resistance to P. vignae in cowpea
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1993-01-01
Sub-type Article (original research)
DOI 10.1071/AR9930755
Volume 44
Issue 4
Start page 755
End page 762
Total pages 8
Language eng
Subject 1100 Agricultural and Biological Sciences
Abstract A glasshouse-based root inoculation method for screening for partial resistance to P. vignae was developed. By infecting potting mix with 0.01 g dry weight mycelium kg- dry weight of mix, inoculum levels comparable to those found under natural conditions of infestation in the field were obtained. This screening assay was used to compare resistance levels of eight cowpea lines with those obtained following hypocotyl inoculation with races 1-4 of P. vignae. One of the lines tested, CPI 84853, expressed partial resistance to all four races in the root inoculation assay, although it was highly susceptible to race 4 following hypocotyl inoculation. This line, along with the root assay described in this paper, form a basis for the development of new cowpea cultivars with more durable resistance to P. vignae.
Keyword Cowpea
Phytophora vignae;partial resistance
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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