S. K. SINGH, MOHIT SINGH*, AKASH SINGH, L. K. GANGWAR, BALWANT SINGH** AND ATUL KUMAR SHUKLA**
Department of Genetics and Plant Breeding, SVPUA&T, Meerut (Uttar Pradesh), India
*Department of Ag. Extension, SHUATS, Allahabad, (Uttar Pradesh), India
**Department of Genetics and Plant Breeding, BNPG College, Rath, Hamirpur, (Uttar Pradesh), India
*(e-mail : shivkumar661@yahoo.com)
(Received : 09 April 2022; Accepted : 08 August 2022)
SUMMARY
General and specific combining ability variances and their effects were studied for nine characters in line x tester mating design in forage sorghum. Study indicated the estimates of variance among line with respect to gca was observed highly significant for all the characters and variance among testers with respect to gca was recorded highly significant for all the attributes. The variances among crosses due to interaction between lines x testers genotypes with respect to sca showed highly significant for all the traits. General combining ability effects and per se performance among the lines G-48, Pant Chari-3, UP Chari-1, HC-308 and HC-171were emerged as good general combiners. F1’s hybrids i.e.UP Chari-4 x HC-171, UP Chari-4 x HJ-541, Pant Chari-3 x HC-308 and CSV-15 x HJ541were identified as best specific combiners for maximum attributes including green fodder yield for other contributing traits, which may be utilized for obtaining transgressivesegregants in the next generation and also could be exploited for development of hybrids.
Key words: Sorghum bicolor, combining ability