Evaluation of general combining ability (GCA) in some new sunflower maintainer lines
2012
Ebrahim Farrokhi | zareei siahbidi, asadolah | Rezaei zad, Abbas
In order to produce new hybrids and evaluate of general and specific combining ability of new sunflower inbred lines and restorers, 60 F1 hybrids derived from crossing between 30 inbred lines and 2 male sterile lines as tester along with Azargol, SHF81-85, SHF81-90 and Cms1052/1*14 as checks were evaluated. For this, an experiment using simple lattice with two replications was conducted. Analysis of variance showed that genotypes for all recorded traits except days to end of flowering were different significantly. F1 hybrids including B86- 353.1AF81-196, B86-284.1AF81-196 and B86-345.1AF81-196 had the highest seed yield with 5583, 5331 and 5235 kg/ha, respectively. Variance Analysis of combining ability by design II of Comstock and Robinson showed that general combining ability inbred lines and testers for grain yield was significant at 1% level. Inbred lines B86-353, B86-284 and B86- 345 had the highest general combining ability for grain yield
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