Genetic analysis of earliness and yield traits in intervarietal hybrids of okra [Abelmoschus esculentus (L.)] using multi-environment analysis
- 1Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Agricultural University
- 2Department of Genetics and Plant Breeding, CSK Himachal Pradesh Agricultural University
- 3Department of Horticulture, Faculty of Agriculture, Ilam University
Abstract
The investigation was conducted at CSK HPKV, Palampur, during 2020 and 2021 to assess heterosis, combining ability, and gene action using a line × tester mating design under multi-environmental conditions. Significant genotype × environment interactions were observed for all traits, highlighting the strong influence of the environment on the performance of genotypes and cross-combinations. Considerable variation in the magnitude and direction of heterosis was recorded for most of the traits. The hybrids ‘Palam Round × Hisar Unnat’, ‘Kashi Vibhuti × Hisar Unnat’, ‘VRO-4 × Hisar Unnat’, and ‘Palam 5 Ridged × Hisar Unnat’ were the most promising, exhibiting significant desirable standard heterosis for fruit yield and related traits, and consistently ranking among the top five crosses across environments. The lines ‘Palam Round’, ‘Kashi Vibhuti’, and ‘VRO-4’, along with the tester ‘Hisar Unnat’, were identified as good general combiners for fruit yield per plant and related traits. Based on SCA effects, the cross-combinations ‘Palam Round × Hisar Unnat’, ‘Kashi Vibhuti × Hisar Unnat’, ‘9801 × P-8’, ‘Kashi Pragati × Palam Komal’, and ‘HPO-1 × P-8’ were the most promising for yield and its component traits. The dominance variance component exceeded the additive variance for most traits, indicating the preponderance of non-additive gene action. Considering both SCA effects and standard heterosis, ‘Palam Round × Hisar Unnat’ and ‘Kashi Vibhuti × Hisar Unnat’ emerged as the most promising cross combinations for developing superior progenies with high levels of mucilage and ascorbic acid.
Related
- Carbon nanoparticles synergistically improve drought tolerance and nutraceutical innovation in okra (Abelmoschus esculentus L.): Antioxidant, antibacterial, and anti-fibrotic activities enhanced via flavonoid accumulation.
- Elucidating the role of glucose-mediated redox homeostasis, carbohydrate metabolism, and secondary metabolite production in enhancing photosynthetic activity, ionomics, and yield in two okra (Abelmoschus esculentus) varieties
- Integrating multivariate and machine learning approaches to decipher drought tolerance in okra (Abelmoschus esculentus L.)
- Evaluating the Effectiveness of Organic Fertilizer on the Growth of Abelmoschus esculentus (Okra)
- Influence of LED spectral quality and natural growing conditions on flowering, yield, and fruit biochemical quality of okra (Abelmoschus esculentus (L.) Moench)
BibTeX
@article{shweta2026genetic,
title = {{Genetic analysis of earliness and yield traits in intervarietal hybrids of okra [Abelmoschus esculentus (L.)] using multi-environment analysis}},
author = {Shweta and Sonia Sood and V. K. Sood and Desh Raj Chaudhary and Meisam Mohammadi},
journal = {Scientific Reports},
year = {2026},
month = jul,
doi = {10.1038/s41598-026-61791-1},
url = {https://doi.org/10.1038/s41598-026-61791-1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Genetic analysis of earliness and yield traits in intervarietal hybrids of okra [Abelmoschus esculentus (L.)] using multi-environment analysis
AU - Shweta
AU - Sonia Sood
AU - V. K. Sood
AU - Desh Raj Chaudhary
AU - Meisam Mohammadi
PY - 2026
DA - 2026/07/01
JO - Scientific Reports
DO - 10.1038/s41598-026-61791-1
UR - https://doi.org/10.1038/s41598-026-61791-1
AB - The investigation was conducted at CSK HPKV, Palampur, during 2020 and 2021 to assess heterosis, combining ability, and gene action using a line × tester mating design under multi-environmental conditions. Significant genotype × environment interactions were observed for all traits, highlighting the strong influence of the environment on the performance of genotypes and cross-combinations. Considerable variation in the magnitude and direction of heterosis was recorded for most of the traits. The hybrids ‘Palam Round × Hisar Unnat’, ‘Kashi Vibhuti × Hisar Unnat’, ‘VRO-4 × Hisar Unnat’, and ‘Palam 5 Ridged × Hisar Unnat’ were the most promising, exhibiting significant desirable standard heterosis for fruit yield and related traits, and consistently ranking among the top five crosses across environments. The lines ‘Palam Round’, ‘Kashi Vibhuti’, and ‘VRO-4’, along with the tester ‘Hisar Unnat’, were identified as good general combiners for fruit yield per plant and related traits. Based on SCA effects, the cross-combinations ‘Palam Round × Hisar Unnat’, ‘Kashi Vibhuti × Hisar Unnat’, ‘9801 × P-8’, ‘Kashi Pragati × Palam Komal’, and ‘HPO-1 × P-8’ were the most promising for yield and its component traits. The dominance variance component exceeded the additive variance for most traits, indicating the preponderance of non-additive gene action. Considering both SCA effects and standard heterosis, ‘Palam Round × Hisar Unnat’ and ‘Kashi Vibhuti × Hisar Unnat’ emerged as the most promising cross combinations for developing superior progenies with high levels of mucilage and ascorbic acid.
SN - 2045-2322
ER -