Author/Authors :
Intizar-ul-Hassan, Muhammad Ayub Agricultural Research Institute (AARI) - Plant Pathology Research Institute, Pakistan , Ali, Shaukat Ayub Agricultural Research Institute (AARI) - Plant Pathology Research Institute, Pakistan , Mohsan, Muhammad Ayub Agricultural Research Institute (AARI) - Plant Pathology Research Institute, Pakistan , Idrees, Amina Ayub Agricultural Research Institute (AARI) - Plant Pathology Research Institute, Pakistan
Abstract :
One hundred and sixteen chickpea (Cicer arietinum L.) varieties/elite lines were evaluated under field conditions during the years 2009 and 2010 to identify source of genetic resistance against collar rot disease caused by Phytophthora megasperma. The fungus was isolated from diseased chickpea plants, purified and maintained on pimaricin + ampicillin + rifampicin + pentachloronitribenzene (PARP) medium and multiplied on chickpea seeds. Amongst 116 germplasm/lines, 33 genotypes displayed resistant, 33 moderately resistant, 38 moderately susceptible and 12 susceptible reaction. The resistant sources found in this study can further be exploited in breeding program for the development of disease resistant commercial cultivars against P. megasperma.
Keywords :
Chickpea , collar rot , genotypes , Phytophthora megasperma.
