Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.)
Two BC1F2 populations derived from the cross CO 52 x 3-11-11-2 were evaluated in the present study for fifteen yields, yield contributing characters and quality characters to assess genetic variability, correlation coefficient and path coefficient analyses. Single plant yield, number of productive...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2022-06-01
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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/4346 |
| _version_ | 1827973247493210112 |
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| author | R. Prathiksha1, R. Pushpam1*, K. Amudha1 and M. Raveendran2 |
| author_facet | R. Prathiksha1, R. Pushpam1*, K. Amudha1 and M. Raveendran2 |
| author_sort | R. Prathiksha1, R. Pushpam1*, K. Amudha1 and M. Raveendran2 |
| collection | DOAJ |
| description | Two BC1F2 populations derived from the cross CO 52 x 3-11-11-2 were evaluated in the present study for fifteen
yields, yield contributing characters and quality characters to assess genetic variability, correlation coefficient and path
coefficient analyses. Single plant yield, number of productive tillers per plant and alkali spreading value all had higher
estimates of PCV and GCV. The high heritability coupled with high genetic advance as a percentage of mean was
observed for traits viz., volume expansion ratio, single plant yield and plant height. In both the backcross population, a
high positive correlation was observed between single plant yield and the traits such as the number of productive tillers
and days to first flowering. In the case of direct effects, the number of productive tillers and kernel length after cooking
played almost higher positive effects in the backcross population I, while in the population II, the number of productive
tillers, kernel breadth before cooking, kernel length after cooking and breadthwise elongation ratio ensured the highest
direct effect over the single plant yield. Thus, the number of productive tillers per plant can be considered as a key trait
in the selection process and can be strategically used for yield improvement programmes. |
| first_indexed | 2024-04-09T19:32:54Z |
| format | Article |
| id | doaj.art-12dacdb36c5145089b3a3611b5a38b73 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-04-09T19:32:54Z |
| publishDate | 2022-06-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-12dacdb36c5145089b3a3611b5a38b732023-04-04T17:45:08ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2022-06-0113249850510.37992/2022.1302.091Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.)R. Prathiksha1, R. Pushpam1*, K. Amudha1 and M. Raveendran201Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore, India. 2Department of Biotechnology, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India *E-Mail:pushpamtnau@gmail.comTwo BC1F2 populations derived from the cross CO 52 x 3-11-11-2 were evaluated in the present study for fifteen yields, yield contributing characters and quality characters to assess genetic variability, correlation coefficient and path coefficient analyses. Single plant yield, number of productive tillers per plant and alkali spreading value all had higher estimates of PCV and GCV. The high heritability coupled with high genetic advance as a percentage of mean was observed for traits viz., volume expansion ratio, single plant yield and plant height. In both the backcross population, a high positive correlation was observed between single plant yield and the traits such as the number of productive tillers and days to first flowering. In the case of direct effects, the number of productive tillers and kernel length after cooking played almost higher positive effects in the backcross population I, while in the population II, the number of productive tillers, kernel breadth before cooking, kernel length after cooking and breadthwise elongation ratio ensured the highest direct effect over the single plant yield. Thus, the number of productive tillers per plant can be considered as a key trait in the selection process and can be strategically used for yield improvement programmes.https://www.ejplantbreeding.org/index.php/EJPB/article/view/4346genetic parameterscorrelationpath analysisrice |
| spellingShingle | R. Prathiksha1, R. Pushpam1*, K. Amudha1 and M. Raveendran2 Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.) Electronic Journal of Plant Breeding genetic parameters correlation path analysis rice |
| title | Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.) |
| title_full | Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.) |
| title_fullStr | Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.) |
| title_full_unstemmed | Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.) |
| title_short | Estimation of genetic parameters and character association for yield and quality traits in BC1F2 population of rice (Oryza sativa L.) |
| title_sort | estimation of genetic parameters and character association for yield and quality traits in bc1f2 population of rice oryza sativa l |
| topic | genetic parameters correlation path analysis rice |
| url | https://www.ejplantbreeding.org/index.php/EJPB/article/view/4346 |
| work_keys_str_mv | AT rprathiksha1rpushpam1kamudha1andmraveendran2 estimationofgeneticparametersandcharacterassociationforyieldandqualitytraitsinbc1f2populationofriceoryzasatival |