Journal ID : AMA-26-07-2023-12478
[This article belongs to Volume - 54, Issue - 07]
Total View : 438

Title : Phytophthora leaf blight resistance sources in Capsicum annum Leo. and determination of isolate mating type

Abstract :

Phytophthora blight and root rot caused by Phytophthora capsici are two independent major disease syndromes in capsicum which cause 40-100 % yield loss in open field conditions and protected structure. The key objective was to develop resistant sources against the P. capsici oomycetes but due to the association of multiple independent pathogens, first we have decided to screen out the lines for blight from locally available isolates in India. Therefore, in the present investigation, we have identified four resistant (0-5%) i.e., AV-143, 116, 132 and 133and one moderately resistant line name AV-144 line (5-10%) from germplasm imported from World Vegetable Centre (AVRDC), Taiwan and two lines CPCT-84 and CPCT-144 from F3segregating population against the P.capsiciisolates collected from Karnataka, South India. The characterized strain of P.capsici was the A1 mating type collected from south India.

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