Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca
The efficiency of different selection criteria (root wt., aerial part wt., total wt., no. of roots/plant, HI) applied to segregating populations of cassava crosses was assessed in expt. carried out at the Centro Nacional de Pesquisa de Mandioca e Fruticultura in Cruz das Almas (Bahia, Brazil). Sampl...
| Autor principal: | |
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| Formato: | Capítulo de libro |
| Lenguaje: | Portugués |
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International Center for Tropical Agriculture
1991
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/82087 |
| _version_ | 1855527137744781312 |
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| author | Bueno, A. |
| author_browse | Bueno, A. |
| author_facet | Bueno, A. |
| author_sort | Bueno, A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The efficiency of different selection criteria (root wt., aerial part wt., total wt., no. of roots/plant, HI) applied to segregating populations of cassava crosses was assessed in expt. carried out at the Centro Nacional de Pesquisa de Mandioca e Fruticultura in Cruz das Almas (Bahia, Brazil). Samples of seedlings from 5 open-pollinated families were used. Clones resulting from the selection were assessed in single rows arranged in a random block design, where treatments were the selection criteria and the replicates the no. of clones selected in each sample. The expt. was repeated in 1985/86 in bordered plots. Mean values and variances were similar. The selection criteria were therefore applied impartially to the samples. Some differences were found in the assessments of lines and plots. Total wt. proved to be the most efficient selection criterion; regarding plots, HI and no. of roots/plant were the most efficient. Root wt. proved to be inefficient as a selection criterion in segregating populations. The most efficient criteria were total wt., no. of roots/plant, and HI, applied together. (AS-CIAT) |
| format | Book Chapter |
| id | CGSpace82087 |
| institution | CGIAR Consortium |
| language | Portugués |
| publishDate | 1991 |
| publishDateRange | 1991 |
| publishDateSort | 1991 |
| publisher | International Center for Tropical Agriculture |
| publisherStr | International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace820872025-11-05T16:59:47Z Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca Bueno, A. manihot esculenta breeding selection crossbreeding clones roots canopy harvest index foliage plant anatomy starch crops fitomejoramiento selección cruzamiento raíces cubierta foliar indice de cosecha The efficiency of different selection criteria (root wt., aerial part wt., total wt., no. of roots/plant, HI) applied to segregating populations of cassava crosses was assessed in expt. carried out at the Centro Nacional de Pesquisa de Mandioca e Fruticultura in Cruz das Almas (Bahia, Brazil). Samples of seedlings from 5 open-pollinated families were used. Clones resulting from the selection were assessed in single rows arranged in a random block design, where treatments were the selection criteria and the replicates the no. of clones selected in each sample. The expt. was repeated in 1985/86 in bordered plots. Mean values and variances were similar. The selection criteria were therefore applied impartially to the samples. Some differences were found in the assessments of lines and plots. Total wt. proved to be the most efficient selection criterion; regarding plots, HI and no. of roots/plant were the most efficient. Root wt. proved to be inefficient as a selection criterion in segregating populations. The most efficient criteria were total wt., no. of roots/plant, and HI, applied together. (AS-CIAT) Se evaluo la eficiencia de diferentes criterios de seleccion (peso de la raiz, peso de la parte aerea, peso total, no de raices/planta, IC) aplicados a poblaciones segregantes de cruzamientos de yuca en expt. realizados en el Centro Nacional de Pesquisa de Mandioca e Fruticultura en Cruz das Almas (Bahia, Brasil). Se utilizaron muestras de plantulas de 5 familias de polinizacion abierta. Los clones que resultaron de esta seleccion se evaluaron en hileras sencillas organizadas en un diseno de bloques al azar, donde los tratamientos fueron los criterios de seleccion y las repeticiones el no. de clones seleccionados en cada muestra. El expt. se repitio en 1985/86 en parcelas con borde. Los valores prom. y las variancias fueron similares. Estos criterios de seleccion, por tanto, se aplicaron a las muestras en forma imparcial. Se encontraron algunas diferencias en las evaluaciones de lineas y parcelas. El criterio de seleccion mas eficiente fue el peso total; en relacion con las parcelas, el IC y el no. de raices/planta fueron mas eficientes. El peso de la raiz fue ineficiente como criterio de seleccion en poblaciones segregantes. Los criterios de seleccion mas eficientes fueron peso total, no. de raices/planta e IC, aplicados en conjunto. (RA-CIAT) 1991 2017-06-20T09:00:53Z 2017-06-20T09:00:53Z Book Chapter https://hdl.handle.net/10568/82087 pt Open Access application/pdf International Center for Tropical Agriculture Bueno, A. 1991. Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca . In: Hershey, C.H. (ed.). Mejoramiento genético de la yuca en América Latina . Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. p. 221-232. (Publicación CIAT no. 82) |
| spellingShingle | manihot esculenta breeding selection crossbreeding clones roots canopy harvest index foliage plant anatomy starch crops fitomejoramiento selección cruzamiento raíces cubierta foliar indice de cosecha Bueno, A. Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca |
| title | Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca |
| title_full | Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca |
| title_fullStr | Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca |
| title_full_unstemmed | Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca |
| title_short | Eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca |
| title_sort | eficiencia de diferentes criterios de selecao em populacoes segregantes de mandioca |
| topic | manihot esculenta breeding selection crossbreeding clones roots canopy harvest index foliage plant anatomy starch crops fitomejoramiento selección cruzamiento raíces cubierta foliar indice de cosecha |
| url | https://hdl.handle.net/10568/82087 |
| work_keys_str_mv | AT buenoa eficienciadediferentescriteriosdeselecaoempopulacoessegregantesdemandioca |