Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions

The tomato is one of the most important horticultural fruits in the world, with large scale horticultural production in Colombia, as seen in the cultivated area of 8,992 and 345,291 t produced. The development of this crop requires production areas under controlled conditions (greenhouses) because i...

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Main Authors:	Cuellar-Murcia, Cristian Alejandro, Suárez-Salazar, Juan Carlos
Format:	Online
Language:	spa
Published:	Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2018
Subjects:	Modeling water status environmental variables. SB320-353.5 SB112 Modelamiento estatus hídrico variables ambientales.
Online Access:	https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7316
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_version_	1801706274521350144
author	Cuellar-Murcia, Cristian Alejandro Suárez-Salazar, Juan Carlos
author_facet	Cuellar-Murcia, Cristian Alejandro Suárez-Salazar, Juan Carlos
author_sort	Cuellar-Murcia, Cristian Alejandro
collection	OJS
description	The tomato is one of the most important horticultural fruits in the world, with large scale horticultural production in Colombia, as seen in the cultivated area of 8,992 and 345,291 t produced. The development of this crop requires production areas under controlled conditions (greenhouses) because it is important to monitor the water status of the plants to achieve successful development. In order to predict the behavior of the water potential of xylem (ᴪ) and sap flow (FH2O) in relation to environmental variables (RAFA, HRa, Ta, DPV), a mechanical model of water flow in tomato plants (Solanum lycopersicum L.) was used under greenhouse conditions in Colombian Amazon piedmont (Florencia, Caquetá). The daily-monitored trends remained between 64.7 and 225.4 g h-1 and -1.2 to -0.34 MPa for FH2O and ᴪ, respectively. To model the behavior of the variables, these trends were between -0.38 and -1.30 MPa for ᴪ and 58.46 and 208.55 g h-1 for FH2O, which were highly correlated (P<0,0001). The use of a mechanical model of water flow in tomato plants under greenhouse conditions proved to be statistically and physiologically feasible for understanding the daily water demand and so can be a source of information when designing irrigation plans.
format	Online
id	oai:oai.revistas.uptc.edu.co:article-7316
institution	Revista Colombiana de Ciencias Hortícolas
language	spa
publishDate	2018
publisher	Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
record_format	ojs
spelling	oai:oai.revistas.uptc.edu.co:article-73162020-08-03T23:56:53Z Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions Flujo de savia y potencial hídrico en plantas de tomate (Solanum lycopersicum L.) bajo condiciones de invernadero Cuellar-Murcia, Cristian Alejandro Suárez-Salazar, Juan Carlos Modeling water status environmental variables. SB320-353.5 SB112 Modelamiento estatus hídrico variables ambientales. SB320-353.5 SB112 The tomato is one of the most important horticultural fruits in the world, with large scale horticultural production in Colombia, as seen in the cultivated area of 8,992 and 345,291 t produced. The development of this crop requires production areas under controlled conditions (greenhouses) because it is important to monitor the water status of the plants to achieve successful development. In order to predict the behavior of the water potential of xylem (ᴪ) and sap flow (FH2O) in relation to environmental variables (RAFA, HRa, Ta, DPV), a mechanical model of water flow in tomato plants (Solanum lycopersicum L.) was used under greenhouse conditions in Colombian Amazon piedmont (Florencia, Caquetá). The daily-monitored trends remained between 64.7 and 225.4 g h-1 and -1.2 to -0.34 MPa for FH2O and ᴪ, respectively. To model the behavior of the variables, these trends were between -0.38 and -1.30 MPa for ᴪ and 58.46 and 208.55 g h-1 for FH2O, which were highly correlated (P<0,0001). The use of a mechanical model of water flow in tomato plants under greenhouse conditions proved to be statistically and physiologically feasible for understanding the daily water demand and so can be a source of information when designing irrigation plans. El tomate es una de las hortalizas más importantes en el mundo, constituye un gran escalafón en la producción hortícola, en Colombia se reportó un área cultivada de 8.992 ha con una producción de 345.291 t. Este cultivo se desarrolla en su mayoría bajo condiciones controladas (invernaderos) requiriendo ciertos volúmenes de agua que puede ser limitantes al no realizar un monitoreo del estatus hídrico, siendo este último, información para la programación del riego. Por ello con el objeto de predecir el comportamiento el potencial hídrico del xilema (ᴪ) y flujo de savia (FH2O) en relación a las variables ambiéntales (RAFA, HRa, Ta, DPV) se utilizó un modelo mecánico de flujo de agua en plantas de tomate (Solanum lycopersicum L.) bajo condiciones de invernadero en el piedemonte amazónico colombiano (Florencia, Caquetá). Las tendencias diarias monitoreadas se mantuvieron entre los 64,7 a 225,4 g h-1 y -1,2 a -0,34 MPa para FH2O y ᴪ respectivamente, al modelar el comportamiento de las variables estas fueron entre rangos de -0.38 a -1.30 MPa para ᴪ y 58,46 a 208,55 g h-1 para FH2O, siendo estos altamente correlacionados (P<0,0001). El uso del modelo mecánico de flujo de agua en plantas de tomate bajo condiciones de invernadero demostró ser estadística y fisiológicamente viable para para entender la demanda hídrica diaria el cual dependió de las variables ambientales. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2018-05-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Experimental Experimental application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7316 10.17584/rcch.2018v12i1.7316 Revista Colombiana de Ciencias Hortícolas; Vol. 12 No. 1 (2018); 104-112 Revista Colombiana de Ciencias Hortícolas; Vol. 12 Núm. 1 (2018); 104-112 Revista Colombiana de Ciencias Hortícolas; Vol. 12 No 1 (2018); 104-112 Revista Colombiana de Ciencias Hortícolas; V. 12 N. 1 (2018); 104-112 Revista Colombiana de Ciencias Hortícolas; v. 12 n. 1 (2018); 104-112 2422-3719 2011-2173 spa https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7316/pdf
spellingShingle	Modeling water status environmental variables. SB320-353.5 SB112 Modelamiento estatus hídrico variables ambientales. SB320-353.5 SB112 Cuellar-Murcia, Cristian Alejandro Suárez-Salazar, Juan Carlos Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions
title	Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions
title_alt	Flujo de savia y potencial hídrico en plantas de tomate (Solanum lycopersicum L.) bajo condiciones de invernadero
title_full	Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions
title_fullStr	Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions
title_full_unstemmed	Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions
title_short	Sap flow and water potential in tomato plants (Solanum lycopersicum L.) under greenhouse conditions
title_sort	sap flow and water potential in tomato plants solanum lycopersicum l under greenhouse conditions
topic	Modeling water status environmental variables. SB320-353.5 SB112 Modelamiento estatus hídrico variables ambientales. SB320-353.5 SB112
topic_facet	Modeling water status environmental variables. SB320-353.5 SB112 Modelamiento estatus hídrico variables ambientales. SB320-353.5 SB112
url	https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7316
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