Heterosis studies in sunflower (Helianthus annuus L.)
HETEROSIS STUDIES IN SUNFLOWER
86 / 2
Authors
-
S NEELIMA
Department of Genetics and Plant Breeding, University of Agril. Sciences, Dharwad-580 005, Karnataka
-
K G PARAMESHWARAPPA
Department of Genetics and Plant Breeding, University of Agril. Sciences, Dharwad-580 005, Karnataka
Keywords:
Heterosis, Single cross hybrids, SunflowerAbstract
Thirty single cross sunflower (Helianthus annuus L.) hybrids produced were subjected to mid parent, better parent and standard heterosisstudies using three checks, viz., KBSH 1, KBSH 44 and GK 2002. The cross CMS 234 A x RHA-95-C-1 recorded the highest heterosis of 104.01% over better parent for seed yield which was followed by CMS 234 A x RHA-6D-1 and CMS 234 A x RHA-271 with 86.06 and 85.15%, respectively. None of the experimental hybrids could surpass the standard heterosis over checks KBSH-1 and GK 2002 for seed yield and oil content. However, three hybrids CMS 17 A x RHA-6D-1 (13.82), DCMS 51 A x R-298 (12.85), DCMS 51 A x RHA-272 (9.81) and 18 crosses where RHA-6D-1 and RHA-271 were used as male parents in combination with CMS 234 A, CMS 4546 A and DCMS 51 A showed significant heterosis over the check KBSH-44 for seed yield and oil content, respectively. The highest heterosis in the cross CMS 234 A x RHA-95-C-1 can be assigned to contribution of heterosis from component characters such as hull content, per cent seed filling and number of filled seeds/head.
Downloads
References
Alone R K, Mate S N, Gagare K C and Manjare M R 2003. Heterosis in sunflower (Helianthus annuus L.). Indian Journal of Agricultural Research, 37 (1): 56-59.
Burli A V and Jadhav M G 2001. Heterosis and nature of gene effectsfor oil content and seed filling in sunflower. Journal of Maharashtra Agricultural Universities, 26 (3): 326-327.
Kumar A A, Ganesh M, Kumar S S and Reddy A V V 1999. Heterosis in sunflower (Helianthus annuus L.). Annals of Agricultural Research, 20 (4): 478-480.
Manivannan N, Muralidharan V and Subbalakshmi B 2003. Heterosis in sunflower. Agricultural Science Digest, 23 (3): 217-219.
Manivannan N, Vidhyavathi P and Muralidharan V 2005. Diallel analysis in sunflower. Indian Journal of Agricultural Research, 39 (4): 281-285.
Nehru S D, Eswarappa G, Rangaiah S and Kulkarni R S 2000. Studies on heterosis for seed yield and oil content to develop hybrids with high oil yield in sunflower (Helianthus annuus L.). Mysore Journal of Agricultural Sciences, 34 (1): 1-5.
Parameswari C, Muralidharan V, Subbalakshmi B and Manivannan M 2004. Genetic analysis of yield and important traitsin sunflower (Helianthus annuus L.) hybrids. Journal of Oilseeds Research, 21 (1): 168-170.
Radhika P, Jagadeshwar K and Khan H A 2001. Heterosis and combining ability through line x tester analysis in sunflower (Helianthus annuus L.). Journal of Research ANGRAU, 29 (2): 35-43.
Rajeswari U, Reddy A V V, Rama Kumar P V and Srinivasa Rao V 2005. Heterosisforseed yield and componentsin Sunflower (Helianthus annuus L.). The Andhra Agricultural Journal, 52 (1&2): 40-42.
Singh D P and Singh S B 2003. Heterosis for seed yield and its components in sunflower (Helianthus annuus L.). Journal of Oilseeds Research, 20 (1): 40-41.
