Sorghum Research Station, Marathwada Agricultural University, Parbhani 431402.
Three male sterile lins, liz. 36 A. 1202 A and 1258 A. developed at Sorahum Research Station, Parbhani, and 11 restores of diverse origin were crossed in line x tester mating design. A trial consisting of 33 hybrids along with 14 parents was planted during rabi 1981. Heterosis over better parent was studied for earhead and grain, characters. Crosses with line 1258 A showed marked hiterosis for primary, secondary and tertiary spikelets alongwith grain yield characters, followed by line 36 A. Male parents PVR-7, PVR-25, PD-3-1-11 and 1235 gave marked heterosis for yield characters with male sterile lines 36 A. 1202 A and 1258 A. Manifestation of heterosis for grain yield was due to inenased number of seeds per earhead, earhead length, and arain size.
Heterosis over better parents, rabi sorghum
