Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids.
During the development of hybrids, non-related progenitors of opposite heterotic pattern were used. When heterotic patterns of different germplasm are not well defined, or the heterotic response among existing materials is low, it is possible to develop inter-line hybrids with some materials. The objective of this study was to determine the yield of intra and inter-population hybrids developed from lines from Pool-19 and Pool-20 (Dialelo 1); lines from Pob.32, 25 and Pool-23 (Dialelo 2); lines from Pool-24 and Pob.24 (Dialelo 3); and lines from Pob.21, Pool-23 y Pob.32 (Dialelo 4), evaluated in México, Central America and Africa. Intra and interpopulation hybrids were also evaluated in experiments involving crosses of white tropicallines to testers from Populations 21, 32, 25 and Pool-24. Interpopulation hybrids outyielded intrapopulation hybrids from 8.0 to 15.6%. In the line x tester experiments, the interpopulation hybrids also outyielded intrapopulation hybrids. In the four dialells, the best intrapopulation hybrids yielded from 92.2 to 118.6% in relation to the best control. This indicates the possibility to obtain high yielding intrapopulation hybrids. Similar results were obtained from the line x tester experiments.
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Universidad de Costa Rica
2016
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oai:portal.ucr.ac.cr:article251042023-06-16T13:59:20Z Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. Comportamiento de híbridos intra e inter poblaciones entre líneas endocrinadas e implicaciones de estados resultados en el desarrollo de híbridos de maíz Kumar Vasal, Surinder González Ceniceros, Fernando Vergara, Narciso Srinivasan, Ganesan During the development of hybrids, non-related progenitors of opposite heterotic pattern were used. When heterotic patterns of different germplasm are not well defined, or the heterotic response among existing materials is low, it is possible to develop inter-line hybrids with some materials. The objective of this study was to determine the yield of intra and inter-population hybrids developed from lines from Pool-19 and Pool-20 (Dialelo 1); lines from Pob.32, 25 and Pool-23 (Dialelo 2); lines from Pool-24 and Pob.24 (Dialelo 3); and lines from Pob.21, Pool-23 y Pob.32 (Dialelo 4), evaluated in México, Central America and Africa. Intra and interpopulation hybrids were also evaluated in experiments involving crosses of white tropicallines to testers from Populations 21, 32, 25 and Pool-24. Interpopulation hybrids outyielded intrapopulation hybrids from 8.0 to 15.6%. In the line x tester experiments, the interpopulation hybrids also outyielded intrapopulation hybrids. In the four dialells, the best intrapopulation hybrids yielded from 92.2 to 118.6% in relation to the best control. This indicates the possibility to obtain high yielding intrapopulation hybrids. Similar results were obtained from the line x tester experiments. Para desarrollar híbridos, buscamos progenitores que no estén emparentados y con patrones heteróticos opuestos. Cuando los patrones no están bien definidos, o la respuesta heterótica entre patrones existentes no es buena, en algunos materiales existe la posibilidad de desarrollar híbridos entre líneas del mismo material. El objetivo de este trabajo fué determinar el comportamiento de híbridos intra e interpoblacionales, entre líneas de Pool-19 y Pool-20 (Dialelo 1); líneas de Pob.32, 25 y Pool-23 (Dialelo 2); líneas de Pool-24 y Pob.21 (Dialelo 3); y líneas de Pob.21, Pool-23 y Pob.32 (Dialelo 4). Estos fueron evaluados en localidades de México, Centro América y Africa. También se evaluaron híbridos intra e interpoblacionales de experimentos que incluyeron líneas tropicales en cruza con cuatro probadores de las Poblaciones 21, 32, 25 y Pool-24. Los híbridos interpoblacionales fueron superiores en rendimiento sobre los intrapoblacionales de un 8,0 al 15,6%. En el estudio de líneas x probadores, los híbridos interpoblacionales también rindieron más que los híbridos intrapoblacionales. En los cuatro Dialelos, los mejores híbridos intrapoblacionales rindieron de 92,2 a 118,6% con respecto al mejor testigo. Esto indica que se pueden obtener híbridos intrapoblacionales interlineales de buen rendimiento. El estudio de líneas x probadores arrojo resultados similares. Universidad de Costa Rica 2016-06-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25104 10.15517/am.v4i0.25104 Agronomía Mesoamericana; 1993: Agronomía Mesoamericana: Vol. 4 (January-December); 01-06 Agronomía Mesoamericana; 1993: Agronomía Mesoamericana: Vol 4 (Enero-diciembre); 01-06 Agronomía Mesoamericana; 1993: Agronomía Mesoamericana: Vol. 4 (January-December); 01-06 2215-3608 1021-7444 spa https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25104/25364 |
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| author |
Kumar Vasal, Surinder González Ceniceros, Fernando Vergara, Narciso Srinivasan, Ganesan |
| spellingShingle |
Kumar Vasal, Surinder González Ceniceros, Fernando Vergara, Narciso Srinivasan, Ganesan Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. |
| author_facet |
Kumar Vasal, Surinder González Ceniceros, Fernando Vergara, Narciso Srinivasan, Ganesan |
| author_sort |
Kumar Vasal, Surinder |
| title |
Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. |
| title_short |
Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. |
| title_full |
Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. |
| title_fullStr |
Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. |
| title_full_unstemmed |
Performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. |
| title_sort |
performance of intra and inter-population hybrids among inbred lines and their implication on the development of hybrids. |
| description |
During the development of hybrids, non-related progenitors of opposite heterotic pattern were used. When heterotic patterns of different germplasm are not well defined, or the heterotic response among existing materials is low, it is possible to develop inter-line hybrids with some materials. The objective of this study was to determine the yield of intra and inter-population hybrids developed from lines from Pool-19 and Pool-20 (Dialelo 1); lines from Pob.32, 25 and Pool-23 (Dialelo 2); lines from Pool-24 and Pob.24 (Dialelo 3); and lines from Pob.21, Pool-23 y Pob.32 (Dialelo 4), evaluated in México, Central America and Africa. Intra and interpopulation hybrids were also evaluated in experiments involving crosses of white tropicallines to testers from Populations 21, 32, 25 and Pool-24. Interpopulation hybrids outyielded intrapopulation hybrids from 8.0 to 15.6%. In the line x tester experiments, the interpopulation hybrids also outyielded intrapopulation hybrids. In the four dialells, the best intrapopulation hybrids yielded from 92.2 to 118.6% in relation to the best control. This indicates the possibility to obtain high yielding intrapopulation hybrids. Similar results were obtained from the line x tester experiments. |
| publisher |
Universidad de Costa Rica |
| publishDate |
2016 |
| url |
https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25104 |
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