Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity
Knowing the potential yield (RP) of potato crop (Solanum tuberosum L.) is needed to establish the productivity gap compared to yields obtained by producers. This article uses different models to estimate the RP for late potato growing season in Córdoba, Argentina, comparing two methods based on: a)...
| Main Authors: | , , , |
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| Format: | Online |
| Language: | spa |
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Facultad de Ciencias Agropecuarias
2014
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/16535 |
| _version_ | 1834605945866420224 |
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| author | de la Casa, A. Ovando, G. Bressanini, L. Martínez, J. |
| author_facet | de la Casa, A. Ovando, G. Bressanini, L. Martínez, J. |
| author_sort | de la Casa, A. |
| collection | Portal de Revistas |
| description | Knowing the potential yield (RP) of potato crop (Solanum tuberosum L.) is needed to establish the productivity gap compared to yields obtained by producers. This article uses different models to estimate the RP for late potato growing season in Córdoba, Argentina, comparing two methods based on: a) radiation use efficiency (RPe) and b) efficiency or productivity of water (w), which was normalized according to vapor pressure deficit (RPwD) and the reference crop evapotranspiration (RPwETo). The RPe for four planting dates from 2007 to 2012 was highly variable (CV = 17.7%), with a mean value of 9.7 Mg ha-1 of dry weight (PS), showing a gradual trend to decrease with the delay of planting, with a rate between 1 and 1.4% of RP per day of delay. The average RPwD was significantly (P < 0.001) lower (8.4 Mg PS ha-1), with similar variability between years and planting dates (CV = 17.3%), and the same trend to decrease was observed as planting was delayed. The RPwETo tended to be only slightly lower (9.3 Mg PS ha-1) than those obtained with Rpe. This difference was not significant (P > 0.05), and its estimates were less variable (CV = 9.7%). |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-16535 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2014 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-165352020-02-27T18:43:10Z Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity Estimación del rendimiento potencial de papa en Córdoba, Argentina, a partir de la eficiencia en el uso de la radiación y de la productividad del agua de la Casa, A. Ovando, G. Bressanini, L. Martínez, J. papa rendimiento potencial eficiencia en el uso de la radiación productividad del agua potato potential yield radiation use efficiency water productivity Knowing the potential yield (RP) of potato crop (Solanum tuberosum L.) is needed to establish the productivity gap compared to yields obtained by producers. This article uses different models to estimate the RP for late potato growing season in Córdoba, Argentina, comparing two methods based on: a) radiation use efficiency (RPe) and b) efficiency or productivity of water (w), which was normalized according to vapor pressure deficit (RPwD) and the reference crop evapotranspiration (RPwETo). The RPe for four planting dates from 2007 to 2012 was highly variable (CV = 17.7%), with a mean value of 9.7 Mg ha-1 of dry weight (PS), showing a gradual trend to decrease with the delay of planting, with a rate between 1 and 1.4% of RP per day of delay. The average RPwD was significantly (P < 0.001) lower (8.4 Mg PS ha-1), with similar variability between years and planting dates (CV = 17.3%), and the same trend to decrease was observed as planting was delayed. The RPwETo tended to be only slightly lower (9.3 Mg PS ha-1) than those obtained with Rpe. This difference was not significant (P > 0.05), and its estimates were less variable (CV = 9.7%). Conocer el rendimiento potencial (RP) es necesario para establecer la brecha productiva con respecto al rendimiento que obtiene el productor. Este trabajo utilizó diferentes modelos para estimar RP en papa (Solanum tuberosum L.) de ciclo tardío en Córdoba, Argentina, comparando dos métodos basados en: a) la eficiencia del uso de la radiación (RPe) y b) la eficiencia o productividad del agua, normalizada con el déficit de presión de vapor (RPwD) y con la evapotranspiración de referencia (RPwETo). El RPe para cuatro fechas de plantación entre 2007 y 2012 resultó muy variable (CV=17,7%), con un promedio de 9,7 Mg ha-1 de peso seco (PS), disminuyendo entre 1 y 1,4% del RP por día de atraso de la plantación. El RPwD promedio fue significativamente (P < 0,001) menor (8,4 Mg PS ha-1), con una variabilidad similar entre años y épocas de plantación (CV = 17,3%), y la misma tendencia a disminuir con el retraso de la plantación. El RPwETo fue ligeramente menor (9,3 Mg PS ha-1) al RPe, diferencia que no fue significativa (P > 0,05), y sus resultados fueron menos variables (CV = 9,7%). Facultad de Ciencias Agropecuarias 2014-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/16535 10.31047/1668.298x.v31.n2.16535 AgriScientia; Vol. 31 No. 2 (2014); 75-91 AgriScientia; Vol. 31 Núm. 2 (2014); 75-91 1668-298X 10.31047/1668.298x.v31.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/16535/16350 |
| spellingShingle | papa rendimiento potencial eficiencia en el uso de la radiación productividad del agua potato potential yield radiation use efficiency water productivity de la Casa, A. Ovando, G. Bressanini, L. Martínez, J. Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity |
| title | Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity |
| title_alt | Estimación del rendimiento potencial de papa en Córdoba, Argentina, a partir de la eficiencia en el uso de la radiación y de la productividad del agua |
| title_full | Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity |
| title_fullStr | Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity |
| title_full_unstemmed | Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity |
| title_short | Yield potential estimation of potato in Córdoba, Argentina by radiation use efficiency and water productivity |
| title_sort | yield potential estimation of potato in cordoba argentina by radiation use efficiency and water productivity |
| topic | papa rendimiento potencial eficiencia en el uso de la radiación productividad del agua potato potential yield radiation use efficiency water productivity |
| topic_facet | papa rendimiento potencial eficiencia en el uso de la radiación productividad del agua potato potential yield radiation use efficiency water productivity |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/16535 |
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