Stability Analysis in Pigeonpea [Cajanus cajan (L.) Millsp.] at Multiple Environments

Author: Gautam Kumar Jatav and Suryakant Sahu

Journal Name:

PDF Download PDF

Abstract

Stability analysis of the twenty genotypes of pigeonpea was accessed for eight characters in a randomized complete block design (RCBD) with two replications at three locations viz., Research Cum Instructiona Farm College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Sant Kabir College of Agriculture and Research Station, Kabirdham and Shaheed Gundadhur College of Agriculture and Research station, Jagdalpur during kharif 2022-2023. The analysis of variance for stability showed significant mean sum of squares for the genotypes foe eight traits viz., days to 50% flowering, days to maturity, plant height, number of branches, number of pods per plant, number of seeds per pod, 100 seed weight, seed yield per plant. For each character, the (linear) mean sum of squares for their environment was significant. During the kharif of 2022–2023, stability analysis of the 20 pigeonpea genotypes was obtained for eight characters in a randomised complete block design (RCBD) with two replications at three locations: Shaheed Gundadhur College of Agriculture and Research station, Jagdalpur; Sant Kabir College of Agriculture and Research Station, Kabirdham; and College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur. Significant mean sum of squares for the genotypes for eight traits—days to 50% flowering, days to maturity, plant height, number of branches, number of pods per plant, number of seeds per pod, 100 seed weight, and seed yield per plant—were revealed by the stability analysis of variance. The (linear) mean sum of squares for each character's surroundings was noteworthy. In terms of seed yield per plant, stability analysis also supports the aforementioned findings and showed that the genotypes RP 2, ICP 7379, ICP 6994, ICP 7005, RPS 2015-29, RPS 2014-32, and BDN 716 were stable. Regression values greater than one for genotypes RP 2, ICP 7379, ICP 6994, ICP 7005, RPS 2015-29, RPS 2014-32, and BDN 716 showed greater stability for the number of tillers per plant under particular conditions. Regression values smaller than one indicate that the genotypes RPS 2014-1, RPS 2014-19, RPS 2014-6, RPS 2014-03, RPS 2014-31, RPS 2014-34, C.G. Arhar-1, and RP7373 are generally stable over a range of environments. If the regression value is more than one, then highly stable cultivars may be recommended for extremely favourable conditions.

Keywords

Stability, genotype, pigeonpea, Multiple Environments

Conclusion

Stability analysis confirms that Genotypes RP 2, ICP 7379, ICP 6994, ICP 7005, RPS 2015-29, RPS 2014-32 and BDN 716 were found to have better combination of above mentioned characters and also contributing maximum to yield even in odd climatic conditions of Chhattisgarh. These genotypes have the maturity duration between 177 – 180 days.

References

-

How to cite this article

Gautam Kumar Jatav and Suryakant Sahu (2025). Stability Analysis in Pigeonpea [Cajanus cajan (L.) Millsp.] at Multiple Environments. International Journal on Emerging Technologies, 16(1): 101–104.