Evaluación de variedades de soya (Glycine max (L) Merr) con diferente hábito de crecimiento según los niveles de riego
Fifteen genotypes of Glycine max (L) Merr. with determinate (CO) semideterminate (SO) and indeterminate (ID) growth habits were evaluate by applying five levels of suplementary irrigation and one without irrigation of permanent effects during the year dry season. The physiologic variables, yield, components were evaluated in R2 (total flowering), R5 (begining of grain replenishrnen), R7 (physiologic maturity) and R8 (harvest). The physiologic variables of soybean present and optimun expression applying about 400 mm of irrigation, and showed an significant reduction applying less than 324 mm between planting and harvest. The reduction of foliar area index (FAI) in R5 and low humidity levels can be the main mechanism of drowght tolerance by senescence absition of leaves. The varietys inside and among the growth habits showed different in their capacity to surtain the final yield allowing to select genotypes for their drought tolerance (line L-121 (CO),ICA-Tunía (CS), L-141 (CI).
| Auteurs principaux: | , , , |
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| Format: | Digital revista |
| Langue: | spa |
| Publié: |
Universidad Nacional de Colombia - Sede Palmira
1988
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| Accès en ligne: | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/15353 |
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| Résumé: | Fifteen genotypes of Glycine max (L) Merr. with determinate (CO) semideterminate (SO) and indeterminate (ID) growth habits were evaluate by applying five levels of suplementary irrigation and one without irrigation of permanent effects during the year dry season. The physiologic variables, yield, components were evaluated in R2 (total flowering), R5 (begining of grain replenishrnen), R7 (physiologic maturity) and R8 (harvest). The physiologic variables of soybean present and optimun expression applying about 400 mm of irrigation, and showed an significant reduction applying less than 324 mm between planting and harvest. The reduction of foliar area index (FAI) in R5 and low humidity levels can be the main mechanism of drowght tolerance by senescence absition of leaves. The varietys inside and among the growth habits showed different in their capacity to surtain the final yield allowing to select genotypes for their drought tolerance (line L-121 (CO),ICA-Tunía (CS), L-141 (CI). |
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