Heterosis and combining ability studies in sesame (Sesamum indicum L.): HETEROSIS AND COMBINING ABILITY STUDIES IN SESAME

S R KUMHAR; SUSHILA SIROHI; BABITA KUMARI

doi:10.56739/jor.v37i1.136373

Authors

S R KUMHAR Agricultural Research Station, Mandor, Agriculture University, Jodhpur-342 304, Rajasthan
SUSHILA SIROHI Agricultural Research Station, Mandor, Agriculture University, Jodhpur-342 304, Rajasthan
BABITA KUMARI Agricultural Research Station, Mandor, Agriculture University, Jodhpur-342 304, Rajasthan

https://doi.org/10.56739/jor.v37i1.136373

Keywords:

General combining ability, Heterosis, Specific combining ability, Sesame

Abstract

Heterosis and combining ability analysis were carried out with three lines and nine testers during kharif 2018. The mean sum ofsquares due to parents showed significant differences for most ofthe characters, except oil content
indicating the presence ofsufficient variability among the parents. The mean squares due to hybrids were significant for almost all the characters studied. The estimation of gca variances were lower than sca variances which indicated the predominance of non-additive gene action for plant height, days to 50% flowering, days to maturity, number of effective branches/plant, number of capsules/ plant, number ofseeds/capsule, harvest index, seed yield/plant, capsule bearing length and additive gene action for oil content. Non-additive genetic variances may be utilized to increase the yield levels by heterosis breeding. The parents, TKG-22, GT-10 and RT-372 were good general combiners for seed yield and contributing characters. The best specific crosses, RT-351 × TKG-22, RT-54 × TKG-22 and RT-54 × RT-372 were most heterotic hybrids for seed yield and found promising for yield contributing characters. These crosses involved average × average, average × poor, average × good parents.

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References

Beniwal B R, Sastri E V D and Solanki Z S 2018. Combining ability and heterosis studies in sesame (Sesamum indicum L.). International Journal of Plant Breeding and Genetics, 10(5): 414-419.

Gaikwad K B and Lal J P 2011. Heterosis and inbreeding depression in sesame (Sesamum indicum L.). Current Advances in Agriculture Sciences, 3(1): 54-56.

Hassan S, Muhammad and Sedeck F S 2015. Combining ability and heterosis estimates in sesame. World Applied Sciences Journal, 33(5): 690-698.

Karade G R, Yamgar S V, Waghmode A A and Wadikar P B 2018. Exploitation of heterosis for yield and yield contributing character in sesame (Sesamum indicum L.). International Journal of Current Microbiology and Applied Sciences, 7(2): 299-308.

Kempthorne O 1957. An Introduction to Genetic Statistics, John Wiley and Sons, New York, pp. 458-471.

Kumar K B and Vivekanandan P 2009. Studies on combining ability studies in sesame (Sesamum indicum L.). Electronic Journal of Plant Breeding, 1: 33-36.

Kumar P, Madhusudan H L, Nadaf H L, Patil R K and Deshpande S K 2012. Combining ability and gene action studies in inter mutant hybrids of sesame (Sesamum indicum L.). Karnataka Journal of Agricultural Sciences, 25(1): 1-4.

Kumar P S, Puspha R, Karuppiah P and Ganesan J 2014. Studies on combining ability in sesame (Sesamum indicum L.). Research on Crop, 27(1): 99-103.

Nijagun H G, Parameshwarappa K G, Muralikrshna S and Salimath P M 2003. Implication of non-additive genetic effects and heterosis for breeding hybrid in sesame (Sesamum indicum L.). National Journal on Plant Improvement, 5(1): 26-30.

Mothilal A and Manoharan V 2005. Diallel analysis for the estimation of genetic parameters in sesame (Sesamum indicum L.). Agricultural Science Digest, 25(2): 133-135.

Patel M A, Fatteh U G, Patel J S, Patel D H and Sriram S 2005. Heterosis in sesame (Sesamum indicum L.). Crop Research, 29(2): 259-264.

Ramesh, Shekhawat N, Macwana S, ChoudharyR, Patel B R 2014. Line × Tester analysis in Sesame (Sesamum indicum L.). The Bioscan, 9(4): 1657-1660.

Rani T S, Babu T K and Thippeswamy S 2015. Combining ability studies in sesame (Sesamum indicum L.). Electronic Journal of Plant Breeding, 6(4): 1011-1018.

Reddy V A, Parimala K and Rao P V R 2015. Exploitation of hybrid vigour in sesame (Sesamum indicum L.) Electronic Journal of Plant Breeding, 6(1): 125-129.

Saxena K, Bisen R 2017. Line × tester analysis in sesame (Sesamum indicum L.) International Journal on Current Microbiology and Applied Sciences, 6(7): 1735-1744.

Sharmila V and Ganesh S K 2008. Line x tester analysis for yield and powdery mildew resistance in sesame (Sesamum indicum L.). Journal of Oilseeds Research, 25(2): 139-144.

Singh A K, Lal, J P and Kumar H 2005. Identification of certain heterotic crosses for their exploitation in the improvement of sesame (Sesamum indicum L.). Sesame and Safflower Newsletters, 20: 24-26.

Yamanura K, Madhusudan and Nadaf H L 2009. Combining ability and gene action for yield and yield components in sesame (Sesamum indicum L.). Karnataka Journal of Agricultural Sciences, 22(2): 255-260.

Heterosis and combining ability studies in sesame (Sesamum indicum L.)