A Productive Breeding Programme on Identifying the Elite Combiners for Early Vigour and Productivity Related Traits in identified Local Landraces of rabi sorghum [Sorghum bicolor (L.) Moench]

Author: Prashant Kariyannanavar, S.T. Kajjidoni, P.V. Patil, R.M. Kachapur and L.K. Verma

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Abstract

Early vigor in sorghum [Sorghum bicolor (L.) Moench] is important for improving stand establishment of the crop, particularly in rainfed regions. Hence present study emphasis on combining ability analysis for early vigour and productivity related traits of 48 hybrids (8 Lines × 6 Testers) revealed that all the traits under study including early vigour were under non-additive genetic control. Among parents, Kodmurkhi local was the best general combiner for panicle breadth, panicle weight, grain yield per plant and number of leaves per plant along with CSV- 216R as best general combiner for early vigour traits as well as productivity related traits this signified positive response of early vigour to the productive related traits. The crosses CSV-216R × IS-4631 and SPV-2333 × RSLG-23 were good specific combiners for grain yield per plant, panicle weight and 100 seed weight, interestingly, the above-mentioned cross CSV-216R × IS-4631 was also the good specific combiner for early vigour traits viz., root collar diameter, plant height and leaf width. These elite crosses can be advanced further to isolate the transgressive seggregants for nutritional quality traits as crosses bearing the blood from the elite landraces. Further, superior early vigour hybrids will be bone for shoot fly resistance coupled with quality traits.

Keywords

Landraces, early vigour, combining ability

Conclusion

The current study revealed that the Kodmurkhi local was the best general combiner for panicle breadth, panicle weight, and grain yield per plant along with number of leaves per plant. Similarly, CSV-216R was the best general combiners for plant height, panicle length, root collar diameter, plant height at 60 days, number of leaves and leaf width this signified positive correlation between early vigour traits and productivity related traits. Further these lines can be used as parent in hybridisation programme and to predict the hybrid performance at early stage of the crop (Table 5 and 6). Among the crosses, Kodmurkhi Local × RSLG-23, CSV-216R × IS-4631, Kodmurkhi Local × EC-8, Lakmapur Local × EC-8, SPV-2333 × RSLG-23, and SPV-2217 × RSLG-23 exhibiting significant sca effects, preferred grain shape (Round), grain color (yellow) and per se performance for the grain yield per plant can be advanced further to isolate transgressive segregants for grain yield and quality traits with advance of early vigour.

References

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How to cite this article

Prashant Kariyannanavar, S.T. Kajjidoni, P.V. Patil, R.M. Kachapur and L.K. Verma (2023). A Productive Breeding Programme on Identifying the Elite Combiners for Early Vigour and Productivity Related Traits in identified Local Landraces of rabi sorghum [Sorghum bicolor (L.) Moench]. Biological Forum – An International Journal, 15(2): 972-976.