Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE India
Combining ability and heterosis were estimated in 45 rice hybrids generated by mating 10 parents, comprising both land races and advance breeding lines, in half diallel fashion. Hayman’s graphical analysis showed that all the twelve morphological traits studied had significant positive dominance var...
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Indian Society of Plant Breeders
2024-09-01
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| Series: | Electronic Journal of Plant Breeding |
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| Online Access: | https://ejplantbreeding.org/index.php/EJPB/article/view/5165 |
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| author | M. James1*, P. Magudeeswari2, Bharati Lap3, K. Lokeshkumar1, Wricha Tyagi4 and Mayank Rai5 |
| author_facet | M. James1*, P. Magudeeswari2, Bharati Lap3, K. Lokeshkumar1, Wricha Tyagi4 and Mayank Rai5 |
| author_sort | M. James1*, P. Magudeeswari2, Bharati Lap3, K. Lokeshkumar1, Wricha Tyagi4 and Mayank Rai5 |
| collection | DOAJ |
| description | Combining ability and heterosis were estimated in 45 rice hybrids generated by mating 10 parents, comprising both land races and advance breeding lines, in half diallel fashion. Hayman’s graphical analysis showed that all the twelve morphological traits studied had significant positive dominance variance. Narrow sense heritability was high for Days to fifty percentage flowering, Plant height, Panicle length and Test weight (> 30 %), and low for Grain yield per plant. According to the VrWr graph, traits like GYPP, PL, PH, TN and plot yield showed partial dominance, whereas traits like Blast disease index showed overdominance. A significant improvement over check was observed for heterosis and the crosses Mynri x CAUS103, Joha x CAUS107, CAUS 126 x CAUS107 and CAUS103 x CP, exhibited significantly positive standard heterosis for GYPP (>80 %) and PY (>100 %). Genetic distance based on fourteen markers revealed significant positive association with mid parent and better parent heterosis for Spikelet’s per plant, Filled grains per plant, Harvest index, Grain yield per plant, Panicle number and Plot yield. Therefore, it is evident that crosses with larger genetic distance between the parents gave hybrids with higher heterosis.
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| format | Article |
| id | doaj-art-bd4f21bb33c54f4284a4367db5f5520a |
| institution | OA Journals |
| issn | 0975-928X |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Indian Society of Plant Breeders |
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| series | Electronic Journal of Plant Breeding |
| spelling | doaj-art-bd4f21bb33c54f4284a4367db5f5520a2025-08-20T01:54:16ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2024-09-0115356657310.37992/2024.1503.085Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE IndiaM. James1*, P. Magudeeswari2, Bharati Lap3, K. Lokeshkumar1, Wricha Tyagi4 and Mayank Rai501School of crop improvement, College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University (I), Meghalaya. 2Vanavarayar Institute Of Agriculture, Tamilnadu 3Rajiv Gandhi University, Arunachal Pradesh 4Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad. 5Dr. Rajendra Prasad Central Agricultural University, Bihar *E-Mail: mailmejames.2009@gmail.comCombining ability and heterosis were estimated in 45 rice hybrids generated by mating 10 parents, comprising both land races and advance breeding lines, in half diallel fashion. Hayman’s graphical analysis showed that all the twelve morphological traits studied had significant positive dominance variance. Narrow sense heritability was high for Days to fifty percentage flowering, Plant height, Panicle length and Test weight (> 30 %), and low for Grain yield per plant. According to the VrWr graph, traits like GYPP, PL, PH, TN and plot yield showed partial dominance, whereas traits like Blast disease index showed overdominance. A significant improvement over check was observed for heterosis and the crosses Mynri x CAUS103, Joha x CAUS107, CAUS 126 x CAUS107 and CAUS103 x CP, exhibited significantly positive standard heterosis for GYPP (>80 %) and PY (>100 %). Genetic distance based on fourteen markers revealed significant positive association with mid parent and better parent heterosis for Spikelet’s per plant, Filled grains per plant, Harvest index, Grain yield per plant, Panicle number and Plot yield. Therefore, it is evident that crosses with larger genetic distance between the parents gave hybrids with higher heterosis. https://ejplantbreeding.org/index.php/EJPB/article/view/5165landraceshayman’s graphical analysisheterosisgenetic distance |
| spellingShingle | M. James1*, P. Magudeeswari2, Bharati Lap3, K. Lokeshkumar1, Wricha Tyagi4 and Mayank Rai5 Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE India Electronic Journal of Plant Breeding landraces hayman’s graphical analysis heterosis genetic distance |
| title | Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE India |
| title_full | Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE India |
| title_fullStr | Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE India |
| title_full_unstemmed | Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE India |
| title_short | Estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of NE India |
| title_sort | estimation of genetic components and assessing heterosis association with molecular markers in half diallel derived rice hybrids developed with landraces of ne india |
| topic | landraces hayman’s graphical analysis heterosis genetic distance |
| url | https://ejplantbreeding.org/index.php/EJPB/article/view/5165 |
| work_keys_str_mv | AT mjames1pmagudeeswari2bharatilap3klokeshkumar1wrichatyagi4andmayankrai5 estimationofgeneticcomponentsandassessingheterosisassociationwithmolecularmarkersinhalfdiallelderivedricehybridsdevelopedwithlandracesofneindia |