Evaluation of common bean germplasm collected from the neglected pockets of northwest Pakistan at Kalam (Swat)

摘要

An experiment consisted of 33 germplasm of common bean (Phaseolus vulgaris L.) collected from FATA (Federally Administered Tribal Areas) and neglected pockets of Khyber Pakhtunkhwa were evaluated at the sub-Research Station, Kalam (Swat) during summer 1999-2000. Based on the grain yield potential, these germplasm were divided into three groups. Germplasm CB-9 ranked first by producing maximum grain yield of 3310 kg ha-1, while germplasm CB-6 with 3188 kg ha-1ranked second, while the lowest grain yield (333 kg ha-1) was produced by germplasm CB-23. Average grain yield in groups decreased in descending order from 2701 kg ha-1 in group I to 1553 kg ha-1in group II and then further decreased to 750 kg ha-1in group III. Maturity period varied from 76 to 96 days, plant height 39 to 96 cm, branches per plant 4 to 7, pod length 5.7 to 14.3 cm, seeds per pod 4.9 to 7.6, pods per plant 9 to 39, dry matter yield 1334 to 6666 kg ha-1, 100-seeds weight 19.0 to 72.1 g, and harvest index varied from 14.3 to 66.2% among different germplasm. Average values of grain yield in the three groups showed positive relationship with plant height, dry matter yield, and harvest index; but showed negative relationship with days to maturity.