Studies on the Relationship between Agronomic and Fruit Quality traits of Passiflora species found in India's NEH region

Author: Kripa Shankar* and S.R. Singh

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Abstract

Improvement work for morphological and biochemical characters especially in Passiflora edulis Sim, Passiflora ligularis Juss, Passiflora edulis f. flavicarpa and Passiflora quadrangularis L. is complicated due to polygenic additive nature of traits among them. North East Region of India has diverse climatic and wide edaphological conditions from valley to upper hills having wide potential for commercialization of Passiflora species. Therefore, studies focused on evaluation of genetic variability components and correlations within morphological and biochemical characters collected from North East Region of India during 2018 to 2020. Fruit yield /vine had the highest genotypic coefficient of variation, whereas number of fruits /vine, number of seeds /fruit, and fruit weight had high heritability with high genetic advance, and correlation studies revealed that number of fruits/vine had the strongest significant positive correlation with fruit yield /vine (kg) for morphological characters.

Keywords

Passiflora edulis Sim, Passiflora ligularis Juss, Passiflora edulis f. flavicarpa, Passiflora quadrangularis L., correlation, NEH Region

Conclusion

Genotypic and phenotypic coefficients of variation were found strongest for fruit yield /vine (kg). The characters like, tendril length and Vitamin A content are under additive gene effects and hence these characters are more reliable for effective selection. Hence, selection on the basis of these traits will be more useful for the improvement of this crop towards higher fruit yield and quality production. Correlation studies revealed that number of fruits vine-1 had significant positive correlation with fruit yield/vine (kg) whereas total flavonoids had significant positive correlation with juice content/fruit (mL) which indicated the importance of these traits in selection for yield. Direct selection based on these traits would result in simultaneous improvement of aforesaid traits and fruit yield /vine in Passiflora species. From the experiment, it is concluded that the correlation studies of morphological and biochemical traits of Passiflora species found in North East India predic

References

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How to cite this article

Shankar, K. and Singh, S.R. (2021). Studies on the Relationship between Agronomic and Fruit Quality traits of Passiflora species found in India's NEH region. Biological Forum – An International Journal, 13(3a): 107-113.