Author(s):

Amit Tomar, Mahak Singh and LP Tiwari

Abstract: The analysis of variance indicated significant differences among the treatments for all the characters. Parents vs. F₁s, parents vs. F₂s and F₁s vs. F₂s also revealed highly significant differences for all the characters except number of primary branches per plant. The estimate of were lower than for all the characters. The analysis of variance for combining ability were found significant differences for all the characters except number of primary and secondary branches per plant in both F₁ and F₂ generations. The parents namely; YSKM-10-1, T-42, YSC-40, NRCYS-05-02 and Pitambari were found common good general combiners in both F₁ and F₂ generations based on gca effect and per se performance for dwarf plant height. The cross combinations namely; YSC-63 x NRCYS-05-02, B-09 x Pitambari, YSKM-11-02 x YSH-401, YSKM-10-02 x Pitambari and YSC-80 x YSH-401 were found common good specific combiners in both F₁ and F₂ generations on the basis of sca effects and per se performance for dwarf plant height. The cross combinations namely; YSC-63 x NRCYS-05-02, YSKM-11-02 x YSH-401, YSC-80 x YSH-401, T-42 x NRCYS-05-02 and YSC-84 x YSH-401 were shown desirable and significant heterotic response over better and economic parent and high inbreeding depression for dwarf plant height.

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