Establishment of drought screening protocols for rice under field conditions Protocolo para la selección de genotipos de arroz tolerantes a déficit hídrico en campo
Protocols were established for screening rice genotypes for tolerance to water-limited conditions under field conditions. These protocols were successfully used to select the best genotypes for further experiments. Rice genotypes responded differently when subjected to water-limited conditions. Expe...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidad Nacional de Colombia
2010-07-01
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| Series: | Acta Agronómica |
| Subjects: | |
| Online Access: | http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122010000300009 |
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| Summary: | Protocols were established for screening rice genotypes for tolerance to water-limited conditions under field conditions. These protocols were successfully used to select the best genotypes for further experiments. Rice genotypes responded differently when subjected to water-limited conditions. Experiments conducted under field conditions indicated that rice genotypes Curinga and CT6241 performed much better in terms of grain yield under water-limited conditions than varieties Azucena, Nerica, CICA8 and Palmar. Curinga, CT6241, CICA8 and Palmar were selected for further studies. The first two genotypes are tolerant and whereas the last two are susceptible to water stress.<br>Se estableció un protocolo para la selección de genotipos de arroz tolerantes a déficit hídrico bajo condiciones de campo. El protocolo desarrollado permitió la separación de los genotipos evaluados por su tolerancia a estrés hídrico, los cuales respondieron en forma diferente. En condiciones limitantes de agua, los genotipos Curinga y CT6241 presentaron mejor comportamiento en términos de rendimiento que las variedades Azucena, CICA8, Nerica y Palmar. Curinga, CT6241, CICA8 y Palmar fueron seleccionados para estudios futuros. Los dos primeros como genotipos tolerantes y los dos últimos como susceptibles al estrés hídrico. |
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| ISSN: | 0120-2812 |