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Estimation of Heterosis for Yield and Yield contributing Traits among intraspecific Hybrids of Cucumis melo

Author: Mamatha R.M., T.B. Allolli, Rekha B. Chittapur, Raghavendra Gunnaiah, Vasant M. Ganiger, M.S. Lokesh and Jnaneshwar B. Gopali

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Abstract

Melo is a species of the extremely complex genus Cucumis in the cucurbitaceae family, with a chromosome number of 2n=24. With respect to fruit characteristics like fruit shape, size, color, texture, taste and nutritional composition, the species melo exhibits considerable morphological variation. Local cultivars of melo are low in moisture content, nutrients and keeping quality, hence the taxonomic groups of Cucumis melo are crossed to improve the local cultivars. In the current study, 30 hybrids were developed by crossing 5 lines with 6 testers in a line-tester fashion. Hybrids were then assessed along with parents in a randomized complete block design (RCBD) with two replications. UHSCS-9 × Mudicode Local and UHSCS-12 × Arka Siri hybrids performed better for the yield and its related traits with maximum heterosis over the better parent. These crosses can be exploited in crop improvement by generating transgressive segregants.

Keywords

Hybrids, Relative heterosis, Heterobeltiosis, Yield, melo

Conclusion

The hybrids UHSCS-39 × UHSCS-77 (fruit length), UHSCS-12 × Arka Siri (average fruit weight), UHSCS-9 × Long melon (number of fruits per plant) and UHSCS-9 × Mudicode Local (total yield per plant) were best performing for the yield and its related traits with maximum heterosis and can be exploited for crop improvement. Nutrient content, moisture and keeping quality of the hybrids have been improved significantly when compared to parents (Local cultivars).

References

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How to cite this article

Mamatha R.M., T.B. Allolli, Rekha B. Chittapur, Raghavendra Gunnaiah, Vasant M. Ganiger, M.S. Lokesh and Jnaneshwar B. Gopali (2023). Estimation of Heterosis for Yield and Yield contributing Traits among intraspecific Hybrids of Cucumis melo. Biological Forum – An International Journal, 15(9): 358-363.