National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present investigation entitled “Combining Ability Studies in Sunflower (Helianthus annuus L.)” was undertaken with objective to estimate the gca and sca effect for seed yield and its components in sunflower. The experiment material under study consisted of four CMS lines and eight restorer lines, crossed in LxT model to produce 32 hybrids during Summer- 2017-18. The experiment material were evaluated for 10 observations in sunflower viz., day to 50 percent flowering, day to maturity, plant height (cm), head diameter (cm), seed filling percentage (%), 100 seed weight (g), volume weight (g/100ml), hull content (%), seed yield per plant (g) and oil content (%). Among the parent CMS-343 was good general combiner for early flowering, days to maturity, volume weight, hull content and oil content followed by CMS-62 and CMS-89-1 for seed yield contributing characters. Among the male parents PSMOO-108 was good general combiner for plant height, seed yield per plant, early flowering, early maturity and 100 seed weight followed by NSH-312, MRHA-2 and CSFR-99. Based on the sca effect of the hybrids, CMS-89-1 x NSH-312 was found promising for early flowering, early maturity while CMS-343 x PSMOO-108 were found for volume weight, early flowering, early days to maturity. The cross CMS- 62 x CSFR-99 for volume weight and 100 seed weight while CMS-62 x PSCIM-165 and CMS-234 x PSFRMM-140 for early maturity, early flowering. These crosses showed the highest sca effects for different characters.
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