Stability Analysis in Sesame (Sesamum indicum L.) under different Doses of Fertilizers

Author: Manoj Kumar Patel, Dhirendra Singh, Versha Sharma, Deepti Tiwari, Mahaveer Prasad Ola, Shahil Kumar and Ranjit Saroj

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Abstract

A study of stability analysis using Eberhart & Russell model was conducted for seed yield and its component traits on 20 genotypes of sesame (Sesamum indicum L.). The experiment was conducted during kharif, 2018 at Research Farm of S.K.N. College of Agriculture, Jobner. The sesame genotypes were grown in randomized block design (RBD) with three replications over three artificially created environments by providing different doses of fertilizers. Fertility gradient and different soil type is a major concern in Indian soils especially in Rajasthan. Farmers of Rajasthan grow sesame as kharif crop and do not follow recommended dosage of fertilizers which is a major challenge. So, to identify most stable genotypes for seed yield and its component traits under different fertility levels present investigation has been planned. The mean sum of squares due to genotypes were significant for all the traits in all the environments, which shows the variability among genotypes. Significant genotype × environment interaction was found for all the traits excluding days to 50% flowering and days to maturity, which indicate the effect of fertility levels on the performance of genotypes. The pooled deviations were significant for biological yield per plant, capsules per plant, harvest index, seeds per capsule, and seed yield per plant, suggesting the unexplained variation in these traits. Genotypes RT-346 and RT-351 were found stable for seed yield. Genotypes RT-372, RT-384, RT-385, RMT-447, and RMT-450 had below-average stability for seed yield and were suited for better environments. On the other hand, genotypes RT-103 and RT-378 had above average stability for seed yield and were found appropriate for poor fertility conditions. Genotypes RT-346 and RT-351 were found stable for most of the traits. Hence, these genotypes can be grown in the soil with different fertility levels and recommended to the farmers of Rajasthan, where soil fertility varies tremendously. Further, this study will help farmers to choose a right variety of sesame to get maximum production.

Keywords

Eberhart & Russell model, Fertility level, G × E interaction, Sesame, Stability

Conclusion

In the present investigation, pooled analysis of variance has shown significant G × E interaction for most of the traits indicating the remarkable impact of different artificial created environments on the genotypes. In joint regression analysis, significant linear G × E interaction of the trait denoted the linear response of the genotypes under changing fertility conditions and significant pooled deviations indicated the unpredictable variation across the environment, that varied from genotype to genotype. In stability parameter, high mean, unit regression and minimum deviation from the regression line is a typical characteristic of the stable genotypes. In the present study, genotype RT-346 and RT-351 were found stable for most of the characters, including yield. Hence, these genotypes can be grown in different fertility conditions in that region for better productivity. It would be helpful to recommend these varieties to the farmer under different fertilizer doses.

References

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How to cite this article

Manoj Kumar Patel, Dhirendra Singh, Versha Sharma, Deepti Tiwari, Mahaveer Prasad Ola, Shahil Kumar and Ranjit Saroj (2023). Stability Analysis in Sesame (Sesamum indicum L.) under different Doses of Fertilizers. Biological Forum – An International Journal, 15(2): 365-370.