Abstract
Nineteen selected lines of field corn were crossed in a line × tester method with two testers to produce 38 hybrids during rabi 2018-2019. In the following year, all the hybrids were raised along with five commercial checks in an alpha lattice design with two replications. The lines E34, BML75, BML76, BML249, BIL106, CML465, CML481 and CML487 were better among the parents, showing GCA effects for yield and other traits could be used extensively in hybrid breeding program owing to increase yield. Furthermore, based on mean, SCA effects and standard heterosis of yield value, the crosses BML75 x BIL79, E34XBIL157, BML76 x BIL157 and BML249 x BIL157 were found to be better to increase the grain yield along with other traits and play pivotal role to development of commercial hybrid.
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