Study on combining ability for seed yield and its attributing traits in sunflower (Helianthus annuus L.)
STUDY ON COMBINING ABILITY FOR SEED YIELD AND ITS ATTRIBUTING TRAITS IN SUNFLOWER
80 / 2
Authors
-
V B BAVAGE
University of Agricultural Sciences, Bengaluru-560 065, Karnataka
-
S D NEHRU
University of Agricultural Sciences, Bengaluru-560 065, Karnataka
-
M S UMA
University of Agricultural Sciences, Bengaluru-560 065, Karnataka
-
M S UMAR FAROOQ
University of Agricultural Sciences, Bengaluru-560 065, Karnataka
Keywords:
Combining ability, GCA, SCA, SunflowerAbstract
Six CMS lines and nine restorers ofsunflower were used in a Line × Tester mating design at Zonal Agricultural Research Station, Bengaluru to determine the combining ability and mode of gene action. The traits studied were days to 50 % flowering, plant height, head diameter, stem diameter, seed yield/plant, 100 seed weight, volume weight and oil content. The gca and sca effects were not significant for all the traits. The SCA variance were greater than GCA variance for the traits viz., plant height, head diameter, seed yield/plant, stem diameter and 100 seed weight, which showed greater manifestation of non-additive gene action. Among the CMS line, BCB-43A and among the testers, LTRR-822, RHA-95C-1 and RHA-95C-2 were good general combiners for most ofthe traits. The cross combinations BCB-171A × RHA 95C-2, BCB-44A × RHA-92, BCB-44A × RHA-95C-1, BCB-43A × GKVK-2 and BCB-170A × LTRR-822 showed higher sca for seed yield/plant.
Downloads
References
Budihal A T 2017. Evaluation of CMS and new inbred lines for combining ability and heterosis in sunflower (Helianthus annuus L.). M.Sc. (Agri.) Thesis, University of Agricultural Sciences, Bengaluru.
Divya B S 2018, Combining ability and heterosis of diverse CMS systems based seed parents in sunflower. M.Sc. (Agri.) Thesis, University of Agricultural Sciences, Bengaluru.
Gangappa E, Yogeesh L N and Manjunatha Y S 2007. Combining ability for yield and yield contributing traits in sunflower. Environment and Ecology, 25: 440-445.
Kadkol G P, Anand I J and Sharma R P 1984. Combining ability and heterosis in sunflower. Indian Journal of Genetics and Plant Breeding, 44: 447-451.
Kempthorne O 1957. An introduction to genetic statistics. John Wiley and Sons, New York.
Leclercq P 1969. Line sterile cytoplasmiquechezktournesol. Ann Amelior Planta, 12: 99-106.
Meena C R, Meena H P and Sinha B 2013. Fertility restoration, combining ability effects and heterosis in sunflower (Helianthus annuus L.) using different CMS sources. Chilean Journal of Agricultural Research, 17(99): 101-104.
Mohan Rao A 2001. Heterosis as a function of genetic divergence in sunflower (Helianthus annuus L.). Ph.D. Thesis, Acharya N. G. Ranga Agricultural University, Hyderabad.
Nandini C 2013. Development of new CMS lines with diversified CMS sources in sunflower (Helianthus annuus L.). Ph.D. Thesis, University of Agricultural Sciences, Bengaluru.
Niharika 2019. Combining ability in sunflower(Helianthus annuus L.). M.Sc. (Agri.) Thesis, University of Agricultural Sciences, Bengaluru.
Patil R, Goud I S, Kulkarni V and Banakar C 2012. Combining ability and gene action studies for seed yield and its components in sunflower (Helianthus annuus L.). Electronic Journal of Plant Breeding, 3(3): 861-867.
Seetharam A, Giriraj K and Kusumakumari P 1980. Phenotypic stability of seed yield in sunflower hybrids. Indian Journal of Genetics and Plant Breeding, 40: 102-104.
Sprague G F and Tatum L A 1942. General vs. specific combining ability in single crosses if corn. Journal of American Society of Agronomy, 34(10): 923-932. DOI: https://doi.org/10.2134/agronj1942.00021962003400100008x
Sunitha N C 2015. Comparative assessment of iso-nuclear alloplasmic hybrids in sunflower (Helianthus annuus L.). M.Sc. (Agri.) Thesis, University of Agricultural Sciences, Bengaluru.
