Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil Nadu
Rice is one of the major food crops which is being most explored for continuous improvement to feed the growing population. In view of this, forty-three rice landraces and varieties from Tamil Nadu were subjected to variability and principal component analyses with fifteen quantitative traits and...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2023-06-01
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| Series: | Electronic Journal of Plant Breeding |
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| Online Access: | https://www.ejplantbreeding.org/index.php/EJPB/article/view/4682 |
| _version_ | 1797783869483646976 |
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| author | Aishwarya Duraiswamy1. K. Sherina Jebakani1, J. Lydia Pramitha1*, S. Ramchander1, N. Devasena1, D. Wilson1, P. Dinesh Kumar2 and P. Ramesh Kumar3 |
| author_facet | Aishwarya Duraiswamy1. K. Sherina Jebakani1, J. Lydia Pramitha1*, S. Ramchander1, N. Devasena1, D. Wilson1, P. Dinesh Kumar2 and P. Ramesh Kumar3 |
| author_sort | Aishwarya Duraiswamy1. K. Sherina Jebakani1, J. Lydia Pramitha1*, S. Ramchander1, N. Devasena1, D. Wilson1, P. Dinesh Kumar2 and P. Ramesh Kumar3 |
| collection | DOAJ |
| description | Rice is one of the major food crops which is being most explored for continuous improvement to feed the growing
population. In view of this, forty-three rice landraces and varieties from Tamil Nadu were subjected to variability and
principal component analyses with fifteen quantitative traits and eight qualitative traits. For the variability parameters
a higher PCV, GCV with high heritability and genetic advance was observed for all the traits. This indicated the
presence of additive gene action and effective selection could be carried out for all traits in future breeding programs.
Subsequently, from the principal component analysis five reliable PC’s with eigen values greater than one was attained.
PC1 explained a total variability of 28.53% followed by PC2 which exhibited 16.99% of the variability. The major positive
contributions towards the variability across PC’s were established by days to 50% flowering, plant height, flag leaf
length, culm length, days to maturity, leaf width, panicle length, number of tillers, number of productive tillers, seedling
height and grain width. Among all, Sornamasuri and JGL were found to be desirable for yield attributing traits from
the PCA biplots and these genotypes could be evaluated for their similar performance in other breeding programs for
utilization. Further among all qualitative traits, grain colour and leaf blade colour were observed to be variable among
the landraces and they could be utilised as key morphological markers for identifying true to type varieties in future. |
| first_indexed | 2024-03-13T00:32:01Z |
| format | Article |
| id | doaj.art-769bd61915e44e14ac0e622780093052 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-03-13T00:32:01Z |
| publishDate | 2023-06-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-769bd61915e44e14ac0e6227800930522023-07-10T11:17:12ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2023-06-01142487 495https://doi.org/10.37992/2023.1402.056Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil NaduAishwarya Duraiswamy1. K. Sherina Jebakani1, J. Lydia Pramitha1*, S. Ramchander1, N. Devasena1, D. Wilson1, P. Dinesh Kumar2 and P. Ramesh Kumar301Genetics and Plant Breeding, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore, India 2Agricultural Statistics, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore, India 3Crop Physiology and Bio chemistry, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore, India *E-Mail: lydiapramitha@karunya.eduRice is one of the major food crops which is being most explored for continuous improvement to feed the growing population. In view of this, forty-three rice landraces and varieties from Tamil Nadu were subjected to variability and principal component analyses with fifteen quantitative traits and eight qualitative traits. For the variability parameters a higher PCV, GCV with high heritability and genetic advance was observed for all the traits. This indicated the presence of additive gene action and effective selection could be carried out for all traits in future breeding programs. Subsequently, from the principal component analysis five reliable PC’s with eigen values greater than one was attained. PC1 explained a total variability of 28.53% followed by PC2 which exhibited 16.99% of the variability. The major positive contributions towards the variability across PC’s were established by days to 50% flowering, plant height, flag leaf length, culm length, days to maturity, leaf width, panicle length, number of tillers, number of productive tillers, seedling height and grain width. Among all, Sornamasuri and JGL were found to be desirable for yield attributing traits from the PCA biplots and these genotypes could be evaluated for their similar performance in other breeding programs for utilization. Further among all qualitative traits, grain colour and leaf blade colour were observed to be variable among the landraces and they could be utilised as key morphological markers for identifying true to type varieties in future.https://www.ejplantbreeding.org/index.php/EJPB/article/view/4682rice landracespcvgcvh2ga and pca |
| spellingShingle | Aishwarya Duraiswamy1. K. Sherina Jebakani1, J. Lydia Pramitha1*, S. Ramchander1, N. Devasena1, D. Wilson1, P. Dinesh Kumar2 and P. Ramesh Kumar3 Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil Nadu Electronic Journal of Plant Breeding rice landraces pcv gcv h2 ga and pca |
| title | Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil Nadu |
| title_full | Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil Nadu |
| title_fullStr | Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil Nadu |
| title_full_unstemmed | Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil Nadu |
| title_short | Evaluating the variability parameters among rice (Oryza sativa. L) landraces and varieties from Tamil Nadu |
| title_sort | evaluating the variability parameters among rice oryza sativa l landraces and varieties from tamil nadu |
| topic | rice landraces pcv gcv h2 ga and pca |
| url | https://www.ejplantbreeding.org/index.php/EJPB/article/view/4682 |
| work_keys_str_mv | AT aishwaryaduraiswamy1ksherinajebakani1jlydiapramitha1sramchander1ndevasena1dwilson1pdineshkumar2andprameshkumar3 evaluatingthevariabilityparametersamongriceoryzasativallandracesandvarietiesfromtamilnadu |