PJB-2006-175
BREEDING FOR HEAT TOLERANCE IN MUNGBEAN (VIGNA RADIATA (L.) WILCZEK)
GUL SANAT SHAH KHATTAK, IQBAL SAEED AND TILA MUHAMMAD
Abstract
14 commercial mungbean varieties and 24 advanced genotypes developed through hybridization were evaluated for maximum flowers’ retention capability under high temperature (above 40°C) and agronomic traits at NIFA, Peshawar during summer (15th March - June) 2005. Similarly 77 mutants derived from NM 92 and 51 recombinants selected from three crosses i.e. VC1560D x NM92, VC1482C x NM92 and NM98 x VC3902A were evaluated for maximum flowers’ retention capability under high temperature and agronomic traits at NIFA, Peshawar during summer 2006. Almost all of the commercial varieties and advanced genotypes showed moderate tolerance to flowers’ shedding under high temperature except NM 92 which showed susceptibility to flowers’ shedding under high temperature. The mutants derived from NM92 and recombinants selected from the three crosses showed moderate tolerance to flowers’ shedding under high temperature. The commercial varieties and advanced genotypes differed significantly for days to50% flowering, days to 90% pods maturity, plant height
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