Combining ability for yield and its contributing characters in tomato.

摘要

The experiment was conducted with 45 F₁s and F₂s developed through diallel technique excluding reciprocals along with ten parents namely, Pant Bahar, Punjab Chhuhara, Pusa Ruby, Pusa Gaurav, Azad Type-2, Azad Type-3, Kalyanpur Type-1, Angoorlata, KS-16 and KS-29 in randomized block design (RBD) with three replications. The study revealed that the significant general combining ability effects were shown by parents KS-29, Pant Bahar and Kalyanpur Type-1 and they were good general combiners for fruits yield in both the generations. Most of the crosses showed high sea effects for fruit yield in both the F₁ and F₂ generations. Crosses KS-16 x KS-29, Kalyanpur Type-1 x KS-29 and Pant Bahar x KS-16 were found to be the best specific combiners for fruit yield. In F₁ and F₂ generations, for fruit yield/plant (kg), the best specific combiners was KS-29 (6.30) followed by Angoorlata (4.29), Pant Bahar (3.79) and Kalyanpur Type-1 (2.37) and KS-29 (4.66) followed by Angoorlata (4.32), Pant Bahar (3.19), Kalyanpur Type-1 (2.35) and Pusa Ruby (2.26). Specific combining ability (sea) effects for fruit yield/plant of crosses in F₁ generation were significant in 35 of the crosses with the range from 14.71 to 17.13.