1Uttam Sugar Mill, Sher Mau, Saharanpur.
2Triveni Sugar Unit, Khatauli, Muzaffarnager, (Uttar Pradesh)
3Deptt. of Environmental Science, Bundelkhand University, Jhansi, (Uttar Pradesh)
4Deptt. of Biotechnology, IMS Engineering College, Ghaziabad, (Uttar Pradesh)
The parental lines Mordan and EC 376187 had significant positive gca effect for flower head size, seed index and grain yield but Mordan showed negative gca for days to flowering and maturity in sunflower. The line EC 376235 exhibited significant positive gca effect for seed filling percentage and grain yield but negative gca effect for days to maturity and flower head size. The parents EC 37785, EC 376235 and mordan showed significant positive gca effect for oil content. The cross combination (EC 376235 x Mordan) and (EC 37785 x Mordan) showed significant negative sea effects for days to flowering as well as maturity i.e., the good combiners for earliness. The cross combinations (EC 376187 x EC 376217) and (EC 37785 x Mordan) had significant positive sea effects for grain yield and its contributing characters i.e., flower head size, seed filling and seed index. The crosses (EC 376216 x Mordan), (EC 376235 x EC 376217), (EC 376187 x EC 376234), (EC 37785 x Mordan) and (EC 376216 x EC 376235) were good combiners for oil percentage.
Generals & specific combining ability, cross combination
