Response of tomato varieties (Solanum lycopersicum L.) to water stress

Abstract

Background and Objectives: Water scarcity is limiting for tomato (Solanum lycopersicum L) production, due to its sensitive to drought in the different phases of development, so irrigation should be done in an optimal way; because of this, the objective was to evaluate four levels of irrigation in greenhouse tomato varieties. Methods: A completely randomized experimental design with factorial arrangement was used and various agronomic variables, fruit quality and biomass were measured as response variables. Results: Tomatoes were significantly affected (P?0.05) by variety factors (V), irrigation (R), and their interaction. 100% of variety P presented fruits of greater weight (122 g); while weight decreased to 84, 90, 34 and 18 g when reducing water up to 25%, in varieties Cid, P, E and C, respectively. However, in terms of yield and leaf area, 100% of the Cid variety presented the highest values, around 3.3 kg/plant and 8.6 m-2. Conclusions: Variety c was tolerant to water stress and also does not present apical rotting (calcium deficiency) in the fruit.

Effects of Water Stress on Leaf Photosynthesis and Yield of Melon and Tomato Crops Grown under Mediterranean Conditions of the Northeast of Morocco

“…Jad. This was shown by Salinas-Vargas et al (2021) [12], which indicates that tomato cultivars could have different responses (tolerance or resistance) for water stress.…”

Efecto del estrés hídrico en poblaciones nativas de tomate mexicano

“…La interacción de variedad por régimen hídrico afectó el pH, en general, el déficit hídrico afecta cada aspecto del crecimiento de la planta que involucra a la anatomía, morfología, fisiología y bioquímica (Florido y Bao 2014). El conocimiento de las características de estos genotipos es importante, porque una agricultura sustentable requiere la explotación racional de variedades eficientes que sean tolerantes a factores adversos en la producción (Borrego et al 2001, Maldonado-Peralta et al 2016, Salinas-Vargas et al 2020.…”

“…La producción de biomasa de un cultivo vegetal está en función de la cantidad de agua disponible (Medrano et al 2007). En variedades comerciales de tomate se ha demostrado que el fruto constituye la demanda prioritaria de agua y de fotoasimilados (Salinas-Vargas et al 2020). Entre otras respuestas, las condiciones de estrés hídrico en las plantas inhiben la síntesis de proteínas y el crecimiento celular, y los solutos se acumulan en las células con el fin de mantener el volumen y la turgencia para evitar la deshidratación (Chaves et al 2003).…”