Assessment of Genetic Variability and Character Association in Yield and Yield-attributing Traits in Spine Gourd (Momordica dioica Roxb.)

Author: S.J. Patil*, V.S. Khandare, V.R. Gurve and R. D. Baghele

Download PDF

Abstract

Spine gourd is a highly nutritious and lucrative perennial vegetable crop with a high genetic variability. Association studies on yield and component chararcters can help breeders to understand trait intercorrelation, paving paths for further crop improvement. The present investigation was carried out to evaluate the variability and character association of 20 spine gourd genotypes for thirteen quantitative and quality traits. The high phenotypic and genotypic coefficient of variation were observed for yield per plant, number of fruits per plant, single fruit weight, plant height and acidity. The highest heritability coupled with high GAM was observed for yield per plant, plant height, number of fruits per plant, acidity, single fruit weight, node at 1st female flower appeared, fruit length and diameter, total soluble solid and ascorbic acid which showed that the heritability was most likely due to additive gene effects. Thus direct selection based on these traits would be advantageous

Keywords

Spine gourd; genetic variability; correlation; path analysis; yield.

Conclusion

From the present investigation, among all traits studied, high PCV and GCV were observed for yield per plant, followed by the number of fruits per plant, single fruit weight, plant height and acidity. The highest heritability coupled with high GAM was observed for yield per plant, plant height, fruit per plant, acidity, single fruit weight, node at which 1st female flower appeared, fruit length and diameter, total soluble solid and ascorbic acid. The yield per plant exhibited a significant and positive correlation with the number of fruit per plants, days to the last harvest, the fruit length, the plant height and the fruit diameter at both phenotypic and genotypic levels. On the other hand, a negative correlation was observed for fifty per cent flowering, the nodes at 1st female flower appeared, acidity, and fruit pedicel length. The path analysis study found that the highest directs effects on yield per plant were observed for days to the last harvest, the fruit pedicel length, the n

References

-

How to cite this article

Patil, S. J.; Khandare, V. S.; Gurve, V. R. and Baghele, R. D. (2022). Assessment of Genetic Variability and Character Association in Yield and Yield-attributing Traits in Spine Gourd (Momordica dioica Roxb.). Biological Forum – An International Journal