Correlation and Path analysis of Seed Yield of Sesame (Sesamum indicum L.) under Summer Rice Fallow conditions

Author: M. Dhandapani, Thiyagu K., Geethanjali S., Subrahmaniyan K., Shanmugam A., Salini A.P. and Nelson Navamaniraj K.

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Abstract

Correlation and path analysis were performed to study the traits correlating and associating with seed yield of sesame under rice fallow conditions. Totally 95 genotypes of sesame were used in this study. The genotypes were raised in augmented design for evaluation under rice fallow conditions. The lines were raised under zero tillage and low input response conditions suitable for rice fallow ecosystem. The yield and yield attributing traits were recorded and analysed for correlation and path coefficient studies. Seed yield is positively correlated with germination percentage, plant height and number of capsules per plant, but negatively correlated with days to maturity. Number of capsules per plant positively correlated with plant height and negatively correlated with days to maturity. Shoot length and root length were positively correlated with seedling vigour index, but they were not correlated with plant height, and seed yield. Number of capsules per plant and plant height has direct effect on Seed yield, and days to maturity have indirect effect on seed yield. Hence, selection of superior progenies in segregating populations under rice fallow should be effected with higher plant height, long duration combined with more number of capsules to increase the yield. This study showed the component traits with their correlations and association for sesame genotypes adaptive conditions under rice fallow cultivation.

Keywords

Rice fallow, Zero tillage, low input response, correlation, path coefficient, Cauvery Delta Zone

Conclusion

Summer rice fallow sesame cultivation is a promising cropping pattern to diversify the rice based cropping system and increase the area of sesame production towards oilseed self sufficiency. To develop summer rice fallow responsiveness in sesame, the characters correlated and having positive direct and indirect effects have to be selected in segregating generations viz., higher germination percentage under rice fallow conditions, plant height, number of capsules per plant.

References

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How to cite this article

M. Dhandapani, Thiyagu K., Geethanjali S., Subrahmaniyan K., Shanmugam A., Salini A.P. and Nelson Navamaniraj K. (2023). Correlation and Path analysis of Seed Yield of Sesame (Sesamum indicum L.) under Summer Rice Fallow Conditions. Biological Forum – An International Journal, 15(4): 762-766.