Occurrence of Peronospora pisi with Uromyces vicia fabae on leaves of pea genotypes
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Authors
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S.S. BAINS, J.S. DHIMAN and HARDIP SINGH
Punjab Agricultural University, RegionaL Research Station, Ropar 140 001
Keywords:
Pea rust, downy mildew, peaAbstract
P. pisi [P. viciae] and U. viciae-fabae occurred together on peas in the Indian Punjab. Tests using 34 pea lines suggested that peas were first infected by U. viciae-fabae followed by infection by P. pisi. Resistant cultivars PMR-3 and Bonneville were P. pisi-free. It is concluded that infection by U. viciae-fabae conditioned pea leaf tissues of P. pisi-susceptible lines to make them a preferred substrate for P. pisi development and sporulation but this effect was not apparent on P. pisi-resistant lines.
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