Biblioteca Digital de VanguardiaWatermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil
The determination of crop coefficient (Kc) values during the crop development cycle is essential to obtain the water requirements for the culture. The present study aimed to determine the evapotraspiration and Kc on Shadow, Top Gun and Crimson Sweet watermelon cultivars, during different stages of d...
| Autores principales: | , , , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Portugués |
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Federal University of Piauí
2015
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| Acceso en línea: | https://comunicatascientiae.com.br/comunicata/article/view/609 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77705 |
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| author | Ferreira, Valber Mendes Klar, Antonio Evaldo Andrade Júnior, Aderson Soares Bastos, Edson Alves Oliveira, Simone Raquel Mendes |
| author_facet | Ferreira, Valber Mendes Klar, Antonio Evaldo Andrade Júnior, Aderson Soares Bastos, Edson Alves Oliveira, Simone Raquel Mendes |
| author_sort | Ferreira, Valber Mendes |
| collection | Repositorio |
| description | The determination of crop coefficient (Kc) values during the crop development cycle is essential to obtain the water requirements for the culture. The present study aimed to determine the evapotraspiration and Kc on Shadow, Top Gun and Crimson Sweet watermelon cultivars, during different stages of development using the method of soil water balance. The experiment was conducted at Embrapa Meio Norte in Teresina, PI, experimental field, from August to October, 2010. The evapotranspiration reference was estimated by Penman-Monteith, based on meteorological data obtained by an automatic weather station. According to the results, the ETc was 224.4 mm, corresponding to an average of 3.8 mm day-1. The higher water demand was 5.5 mm day-1, obtained at the intermediate phenological stage. The Kc values were 0.39, 0.80, 1.14, 0.59 (Crimson Sweet), 0.35, 0.72, 1.20, 0.30 (Top gun) and 0.34, 0.58, 0.89, 0.55 (Shadow), for initial, growth, intermediate and final phases, respectively. |
| format | info:eu-repo/semantics/article |
| id | clacso-CLACSO77705 |
| institution | CLACSO, Repositorio Digital |
| language | Portugués |
| publishDate | 2015 |
| publisher | Federal University of Piauí |
| record_format | greenstone |
| spelling | clacso-CLACSO777052022-03-21T20:07:33Z Watermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil Evapotranspiração e coeficiente de cultura da melancia na microrregião de Teresina, PI, Brasil Ferreira, Valber Mendes Klar, Antonio Evaldo Andrade Júnior, Aderson Soares Bastos, Edson Alves Oliveira, Simone Raquel Mendes Citrullus lanatus irrigation management Kc water consumption The determination of crop coefficient (Kc) values during the crop development cycle is essential to obtain the water requirements for the culture. The present study aimed to determine the evapotraspiration and Kc on Shadow, Top Gun and Crimson Sweet watermelon cultivars, during different stages of development using the method of soil water balance. The experiment was conducted at Embrapa Meio Norte in Teresina, PI, experimental field, from August to October, 2010. The evapotranspiration reference was estimated by Penman-Monteith, based on meteorological data obtained by an automatic weather station. According to the results, the ETc was 224.4 mm, corresponding to an average of 3.8 mm day-1. The higher water demand was 5.5 mm day-1, obtained at the intermediate phenological stage. The Kc values were 0.39, 0.80, 1.14, 0.59 (Crimson Sweet), 0.35, 0.72, 1.20, 0.30 (Top gun) and 0.34, 0.58, 0.89, 0.55 (Shadow), for initial, growth, intermediate and final phases, respectively. A determinação dos valores do coeficiente de cultura (Kc), durante o ciclo de desenvolvimento, é fundamental para se obter as necessidades hídricas de uma cultura. O presente trabalho teve por objetivo determinar a evapotranspiração e o Kc da melancia, cultivares Shadow, Top Gun e Crimson Sweet, durante os diferentes estádios de desenvolvimento utilizando o método de balanço de água no solo. O experimento foi conduzido no campo experimental da Embrapa Meio Norte, em Teresina, PI, durante o período de agosto a outubro de 2010. A evapotranspiração de referência foi estimada pelo método de Penman-Monteith com base nos dados meteorológicos obtidos por uma estação agrometeorologia automática. Os resultados mostram que a ETc foi de 225,4 mm para todo o ciclo da cultura, correspondente a um valor médio de 3,8 mm d-1. O estádio fenológico de maior demanda hídrica foi o intermediário (reprodutivo) com 5,2 mm d-1. Os valores de Kc foram 0,39; 0,80; 1,14; 0,59 (Crimson Sweet); 0,35; 0,72; 1,20; 0,30 (Top Gun) e 0,34; 0,58; 0,89; 0,55 (Shadow), para as fases inicial, crescimento, intermediário e final, respectivamente. 2015-12-29 2022-03-21T20:07:33Z 2022-03-21T20:07:33Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://comunicatascientiae.com.br/comunicata/article/view/609 10.14295/cs.v6i4.609 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77705 por https://comunicatascientiae.com.br/comunicata/article/view/609/369 Copyright (c) 2016 Valber Mendes Ferreira, Antonio Evaldo Klar, Aderson Soares Andrade Júnior, Edson Alves Bastos, Simone Raquel Mendes Oliveira application/pdf Federal University of Piauí Comunicata Scientiae; Vol. 6 No. 4 (2015); 488-494 Comunicata Scientiae; v. 6 n. 4 (2015); 488-494 2177-5133 2176-9079 |
| spellingShingle | Citrullus lanatus irrigation management Kc water consumption Ferreira, Valber Mendes Klar, Antonio Evaldo Andrade Júnior, Aderson Soares Bastos, Edson Alves Oliveira, Simone Raquel Mendes Watermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil |
| title | Watermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil |
| title_full | Watermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil |
| title_fullStr | Watermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil |
| title_full_unstemmed | Watermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil |
| title_short | Watermelon evapotranspiration and crop coefficient in Teresina microregion - Piaui, Brazil |
| title_sort | watermelon evapotranspiration and crop coefficient in teresina microregion - piaui, brazil |
| topic | Citrullus lanatus irrigation management Kc water consumption |
| url | https://comunicatascientiae.com.br/comunicata/article/view/609 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77705 |