Screening of Different Genotypes of Pigeonpea(Cajanus Cajan L. Millsp.) Against Phytophthora Drechsleri F. Sp. Cajani Under Natural Epiphytotic Environment

Jagjeet Singh, Vineeta Singh, Rajesh Kumar and Ramesh Chand

Department of Mycology and Plant Pathology, Banaras Hindu University, Varanasi-221005, India.

Corresponding Author E-mail: jagjeetsingh2511@gmail.com

DOI : http://dx.doi.org/10.13005/bbra/2389

ABSTRACT: Pigeonpea is one of the major legumes and it is one of the most important among edible legumes of the world. Diseases are major constraints affecting both production and yield stability of pigeonpea(Kannaiyan and Nene, 1984).In IndiaFusarium wilt, sterility mosaic, Phytophthora blight and Phoma stem canker are considered most important diseases of pigeonpea causing extensive damage to the crop. Our study were based on screening resistant genotypes against Phytophthora blight of pigeonpea caused by Phytophthora drechsleri f. sp. cajani(Pdc).Seventy three genotypes were planted with susceptible check (ICP-7119). All genotypes were inoculated with Phytophthora drechsleri f. sp. cajani by knife cut method and data of lesion size were taken at two different time intervals.Out of 73 genotypes only five of them viz.WRG-220, GT-101, GAUT-001, BSMR-853, ICP-2376 were found fully resistant against infection of Phytophthora drechsleri f. sp. cajani(Pdc).

KEYWORDS: Cajanas cajan; Pdc; Genotypes; Phytophthora drechsleri

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