Estimates of stability parameters for yield and its components in cucumber (Cucumis sativus L.)

Abstract

Stability analysis was done in cucumber with twenty genotypes grown over four environments viz., E1 (kharif season sowing), E2 (kharif season sowingn with pinching of main vine after tenth node), E3 (summer season sowing) and E4 (summer season sowing with
pinching of main vine after tenth node) for six characters, namely, fruit length, fruit diameter, fruit weight, specific gravity of fruit, number of fruits per plant and fruit yield. The genotype × environment was significant for all characters except fruit length. One genotype for fruit diameter, three genotypes for fruit weight, three genotypes for specific gravity of fruit, four genotypes for number of fruits per plant, three genotypes for fruit yield were desirable and stable. On over all basis, the desirable and stable genotypes for fruit yield were PCUC 202, PCUC 45 and PCUC 101 × PCUC 83. The mean value was found higher (62.14 q/ha) in pinched vines as compared to non pinched vines in kharif season. The mean value for fruit yield was found higher in non pinched vines (194.52 q/ha) as compared to pinched vines (168.94 q/ha) in summer season.