Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.)
A research work was undertaken at the Centro International de Agricultura Tropical (CIAT), during 1989-91. There was no maternal effect on the express ion of white center and gelatinization temperature but rather different degrees of dominance, the order of dominance was Colombia 1 > IR5 = L6850 > LRAT8; the in vitro culture influenced the express ion of white belly and the gelatinization temperature in the parents and possibly in their progenies; the influence of the environment was greater on IRAT8 and L6850 (and its progenies); selection for low white belly seemed to be not efficient in early generations; but selection for the desired gelatinization temperature is more efficient (high heritability). With the F3 samples, a subjective evaluation was carried out (zero: endosperm without white belly, and five: completely chalky), There was found a high index of concordance (79%), between the 0-5 scale and the white belly area estimated throughout the use of the stereoscope with a micrometer.
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad Nacional de Colombia - Sede Palmira
1995
|
| Online Access: | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/15585 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
oai:www.revistas.unal.edu.co:article-15585 |
|---|---|
| record_format |
ojs |
| spelling |
oai:www.revistas.unal.edu.co:article-155852010-09-20T15:06:06Z Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.) Holguín V., Julio E. Martínez R., César P. Cuevas P., Federico Baena García, Diosdado Citoplasma temperatura gelatinización progenitores arroz oryza sativa L. gelatinization temperature rice ariza sativa L. A research work was undertaken at the Centro International de Agricultura Tropical (CIAT), during 1989-91. There was no maternal effect on the express ion of white center and gelatinization temperature but rather different degrees of dominance, the order of dominance was Colombia 1 > IR5 = L6850 > LRAT8; the in vitro culture influenced the express ion of white belly and the gelatinization temperature in the parents and possibly in their progenies; the influence of the environment was greater on IRAT8 and L6850 (and its progenies); selection for low white belly seemed to be not efficient in early generations; but selection for the desired gelatinization temperature is more efficient (high heritability). With the F3 samples, a subjective evaluation was carried out (zero: endosperm without white belly, and five: completely chalky), There was found a high index of concordance (79%), between the 0-5 scale and the white belly area estimated throughout the use of the stereoscope with a micrometer. La investigación se adelantó en el Centro Internacional de Agricultura Tropical (CIAT) durante 1989-1991. No hubo influencia del citoplasma en la expresión del centro blanco y temperatura de gelatinización. El orden de dominancia El orden de dominancia de los progenitores para el carácter ausencia de centro blanco fue Colombia 1 > 1R5 = L6850 > IRAT8. El cultivo in vitro influyó sobre la expresión del centro blanco y la temperatura de gelatinización en los progenitores y posiblemente en las poblaciones segregantes. El medio ambiente influyó más sobre los progenitores LR5y L6850 (y sus progenies). La selección hacia centro blanco bajo parece no ser eficiente en generaciones tempranas, especialmente en el caso de L6850 e IRAT8, en contraste con la mayor eficiencia de la selección por temperatura de gelatinización (heredabilidad alta). Se encontró un alto índice de concordancia (79%), entre la escala 0 a 5 utilizada para calificación subjetiva de centro blanco y el área del grano afectada por centro blanco, (lectura hecha en esteroscopio con micrómetro). Universidad Nacional de Colombia - Sede Palmira 1995-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion genetic analysis application/pdf https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/15585 Acta Agronómica; Vol. 45 No. 2-4 (1995); 7-13 Acta Agronómica; Vol. 45 Núm. 2-4 (1995); 7-13 Acta Agronómica; v. 45 n. 2-4 (1995); 7-13 2323-0118 0120-2812 spa https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/15585/16347 Derechos de autor 1995 Acta Agronómica https://creativecommons.org/licenses/by-nc-nd/4.0 |
| institution |
UNAL |
| collection |
OJS |
| country |
Colombia |
| countrycode |
CO |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-actaagronomica |
| tag |
revista |
| region |
America del Sur |
| libraryname |
Sistema Nacional de Bibliotecas de la UNAL |
| language |
spa |
| format |
Digital |
| author |
Holguín V., Julio E. Martínez R., César P. Cuevas P., Federico Baena García, Diosdado |
| spellingShingle |
Holguín V., Julio E. Martínez R., César P. Cuevas P., Federico Baena García, Diosdado Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.) |
| author_facet |
Holguín V., Julio E. Martínez R., César P. Cuevas P., Federico Baena García, Diosdado |
| author_sort |
Holguín V., Julio E. |
| title |
Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.) |
| title_short |
Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.) |
| title_full |
Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.) |
| title_fullStr |
Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.) |
| title_full_unstemmed |
Influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (Oryza sativa. L.) |
| title_sort |
influencia del citoplasma sobre la expresión del centro blanco y temperatura de gelatinización en arroz (oryza sativa. l.) |
| description |
A research work was undertaken at the Centro International de Agricultura Tropical (CIAT), during 1989-91. There was no maternal effect on the express ion of white center and gelatinization temperature but rather different degrees of dominance, the order of dominance was Colombia 1 > IR5 = L6850 > LRAT8; the in vitro culture influenced the express ion of white belly and the gelatinization temperature in the parents and possibly in their progenies; the influence of the environment was greater on IRAT8 and L6850 (and its progenies); selection for low white belly seemed to be not efficient in early generations; but selection for the desired gelatinization temperature is more efficient (high heritability). With the F3 samples, a subjective evaluation was carried out (zero: endosperm without white belly, and five: completely chalky), There was found a high index of concordance (79%), between the 0-5 scale and the white belly area estimated throughout the use of the stereoscope with a micrometer. |
| publisher |
Universidad Nacional de Colombia - Sede Palmira |
| publishDate |
1995 |
| url |
https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/15585 |
| work_keys_str_mv |
AT holguinvjulioe influenciadelcitoplasmasobrelaexpresiondelcentroblancoytemperaturadegelatinizacionenarrozoryzasatival AT martinezrcesarp influenciadelcitoplasmasobrelaexpresiondelcentroblancoytemperaturadegelatinizacionenarrozoryzasatival AT cuevaspfederico influenciadelcitoplasmasobrelaexpresiondelcentroblancoytemperaturadegelatinizacionenarrozoryzasatival AT baenagarciadiosdado influenciadelcitoplasmasobrelaexpresiondelcentroblancoytemperaturadegelatinizacionenarrozoryzasatival |
| _version_ |
1755913702534545408 |