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.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad Nacional de Colombia - Sede Palmira
1995
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| Online Access: | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/15585 |
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