Article Dans Une Revue Journal of Experimental Agriculture International Année : 2025

Comparative Analysis of Heterosis, Inbreeding Depression and Its Component Traits for Yield and Its Attributing Traits in Tomato (solanum lycopersicum L.)

Résumé

Tomato (Solanum lycopersicum L.) is a widely cultivated vegetable valued for its nutritional and economic significance, with strong potential for genetic improvement. Significant positive heterobeltiosis was observed in family DVRT 2 × IIHR 335 for seeds per fruit, total soluble sugars, and locules per fruit, in family ATL 17-06 × GAT 5 for fruit yield per plant, fruit weight, fruits per plant, total soluble sugars, and lycopene content and in family GAT 8 × ATL 18-04 and NTL 12-02 × GP 11 for total soluble sugars. Positive relative heterosis was recorded across all families for traits including locules per fruit, seeds per fruit, total soluble sugars, lycopene content, β-carotene, and branches per plant. Notably, the family DVRT 2 × IIHR 335 showed significant negative heterosis (–7.77%) and inbreeding depression (–7.21%) for days to flowering, indicating its potential for early flowering improvement. Family II demonstrated significant positive heterobeltiosis for yield-related traits governed by additive, dominance, and epistatic gene interactions.

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Dates et versions

hal-05164264 , version 1 (16-07-2025)

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  • HAL Id : hal-05164264 , version 1

Citer

Krunal Baria, R.R Acharya, Hemali Pandya, K.B Chaudhary, Naresh Chaudhary, et al.. Comparative Analysis of Heterosis, Inbreeding Depression and Its Component Traits for Yield and Its Attributing Traits in Tomato (solanum lycopersicum L.). Journal of Experimental Agriculture International, 2025, 47 (7), pp.277-288. ⟨hal-05164264⟩
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