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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 2 |
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Autor : |
ROEL, A.; MUTTERS, R.G.; ECKERT, J.W.; PLANT, R.E. |
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Afiliación : |
ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Effect of low water temperature on rice yield in California. |
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Fecha de publicación : |
2005 |
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Fuente / Imprenta : |
Agronomy Journal, 2005, v. 97, p. 943-948. |
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DOI : |
10.2134/agronj2004.0129 |
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Idioma : |
Inglés |
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Notas : |
Article history: Published online May 13, 2005. |
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Contenido : |
Abstract:
Water temperature has increasingly become a matter of concern for California rice (Oryza sativa L.) growers due to a need for public water agencies to improve habitat for fish. Prudent management of water resources to balance the needs of environmental and agricultural interests requires the quantification of water temperature effects on rice productivity. Our objective was to evaluate two alternative thermal unit models for the effect of low water temperature on yield. One model was based on the total number of hours below a given threshold water temperature T-b (abbreviated TNHB T-b) and the other was based on the concept of inverse degree days (i.e., degree days below a given threshold water temperature) (abbreviated IDD). We tested these models at a range of values of Tb between 10 and 25 degrees C on data from two commercial fields during 2 yr. Results showed that the effect of low water temperature may be much greater than would be apparent from the visual appearance of the rice plants. Values of IDD and TNHB Tb were very highly correlated for 4 of the 4-yr field combinations. A logistic curve model based on TNHB 20 degrees C provided the best fit to the aggregated data. |
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Thesagro : |
ARROZ; RENDIMIENTO DEL CULTIVO; TEMPERATURA DEL AGUA. |
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Asunto categoría : |
F06 Riego |
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Marc : |
LEADER 01822naa a2200217 a 4500
001 1032796
005 2019-10-15
008 2005 bl uuuu u00u1 u #d
024 7 $a10.2134/agronj2004.0129$2DOI
100 1 $aROEL, A.
245 $aEffect of low water temperature on rice yield in California.
260 $c2005
500 $aArticle history: Published online May 13, 2005.
520 $aAbstract: Water temperature has increasingly become a matter of concern for California rice (Oryza sativa L.) growers due to a need for public water agencies to improve habitat for fish. Prudent management of water resources to balance the needs of environmental and agricultural interests requires the quantification of water temperature effects on rice productivity. Our objective was to evaluate two alternative thermal unit models for the effect of low water temperature on yield. One model was based on the total number of hours below a given threshold water temperature T-b (abbreviated TNHB T-b) and the other was based on the concept of inverse degree days (i.e., degree days below a given threshold water temperature) (abbreviated IDD). We tested these models at a range of values of Tb between 10 and 25 degrees C on data from two commercial fields during 2 yr. Results showed that the effect of low water temperature may be much greater than would be apparent from the visual appearance of the rice plants. Values of IDD and TNHB Tb were very highly correlated for 4 of the 4-yr field combinations. A logistic curve model based on TNHB 20 degrees C provided the best fit to the aggregated data.
650 $aARROZ
650 $aRENDIMIENTO DEL CULTIVO
650 $aTEMPERATURA DEL AGUA
700 1 $aMUTTERS, R.G.
700 1 $aECKERT, J.W.
700 1 $aPLANT, R.E.
773 $tAgronomy Journal, 2005$gv. 97, p. 943-948.
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