Central Horticultural Experiment Station, Ranchi 634 002.
Six varieties of bitter gourd (Momordica charantia) were evaluated for eight characters, viz., vine length, internodal length, node number, fruit number per plot, fruit weight, fruit length, fruit breadth and marketable yield per plot from 1988 to 1990. The genotype-environment interaction and environmental linear effects were found to be significant for all the traits studied. It revealed that the genotypes interacted considerably with the environment in the expression of the attributes studied. The linear component of G x E interaction was significant for marketable yield per plot, fruit breadth and vine length. On the basis of individual parameters (xi, bi and s2d), the genotype Priya exhibited the highest plot yield, above average response and non-significant deviation, and is best suitable for favourable environments. The genotype Arka Harit expressed a unit regression and had non-significant deviation for all the attributes studied. On the basis of the study, it was concluded that Arka Harit is the most stable genotype for Chotanagpur conditions.
