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Alomari-Mheidat M, Corell M, Martín-Palomo MJ, Castro-Valdecantos P, Medina-Zurita N, de Sosa LL, Moriana A. Moderate Water Stress Impact on Yield Components of Greenhouse Tomatoes in Relation to Plant Water Status. Plants (Basel) 2024; 13:128. [PMID: 38202435 PMCID: PMC10781057 DOI: 10.3390/plants13010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/28/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024]
Abstract
The scarcity of water resources affects tomato production. Deficit irrigation may optimize water management with only a low reduction in yield. Deficit irrigation scheduling based on applied water presented no clear conclusions. Water stress management based on plant water status, such as water potential, could improve the scheduling. The aim of this work was to evaluate the physiological and yield responses of different tomato cultivars to deficit irrigation. Three experiments were carried out in 2020 and 2022 at the University of Seville (Spain). "Cherry" and "chocolate Marmande" cultivars with an indeterminate growth pattern were grown in a greenhouse. Treatments were: Control (full irrigated) and Deficit. Deficit plants were irrigated based on water potential measurements. Moderate water stress did not significantly reduce the yield, although it affected other processes. Fruit size and total soluble solids were the most sensitive parameters to water stress. The latter increased only when persistent water stress was applied. However, truss development and fruit number were not affected by the level of water stress imposed. Such results suggest that moderate water stress, even in sensitive phenological stages such as flowering, would not reduce yield. Deficit irrigation scheduling based on plant water status will allow accurate management of water stress.
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Affiliation(s)
- Munia Alomari-Mheidat
- Departamento de Agronomía, Universidad de Sevilla, ETSIA, Crta de Utrera Km 1, 41013 Seville, Spain; (M.A.-M.); (M.J.M.-P.); (P.C.-V.); (N.M.-Z.)
| | - Mireia Corell
- Departamento de Agronomía, Universidad de Sevilla, ETSIA, Crta de Utrera Km 1, 41013 Seville, Spain; (M.A.-M.); (M.J.M.-P.); (P.C.-V.); (N.M.-Z.)
- Unidad Asociada al CSIC, Uso Sostenible del Suelo y el Agua en la Agricultura (Universidad de Sevilla-IRNAS), Crta de Utrera Km 1, 41013 Sevilla, Spain
| | - María José Martín-Palomo
- Departamento de Agronomía, Universidad de Sevilla, ETSIA, Crta de Utrera Km 1, 41013 Seville, Spain; (M.A.-M.); (M.J.M.-P.); (P.C.-V.); (N.M.-Z.)
- Unidad Asociada al CSIC, Uso Sostenible del Suelo y el Agua en la Agricultura (Universidad de Sevilla-IRNAS), Crta de Utrera Km 1, 41013 Sevilla, Spain
| | - Pedro Castro-Valdecantos
- Departamento de Agronomía, Universidad de Sevilla, ETSIA, Crta de Utrera Km 1, 41013 Seville, Spain; (M.A.-M.); (M.J.M.-P.); (P.C.-V.); (N.M.-Z.)
| | - Noemí Medina-Zurita
- Departamento de Agronomía, Universidad de Sevilla, ETSIA, Crta de Utrera Km 1, 41013 Seville, Spain; (M.A.-M.); (M.J.M.-P.); (P.C.-V.); (N.M.-Z.)
| | - Laura L. de Sosa
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC) Av. Reina Mercedes 10, 41012 Sevilla, Spain;
| | - Alfonso Moriana
- Departamento de Agronomía, Universidad de Sevilla, ETSIA, Crta de Utrera Km 1, 41013 Seville, Spain; (M.A.-M.); (M.J.M.-P.); (P.C.-V.); (N.M.-Z.)
- Unidad Asociada al CSIC, Uso Sostenible del Suelo y el Agua en la Agricultura (Universidad de Sevilla-IRNAS), Crta de Utrera Km 1, 41013 Sevilla, Spain
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Castro-Valdecantos P, Puértolas J, Dodd IC. Similar soil drying-induced stomatal closure in soybean genotypes varying in abscisic acid accumulation and stomatal sensitivity to abscisic acid. Funct Plant Biol 2024; 51:NULL. [PMID: 37072870 DOI: 10.1071/fp23012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/21/2023] [Indexed: 05/03/2023]
Abstract
Different soybean cultivars (Williams 82 , Union , Jindou 21 , Long Huang 1 , Long Huang 2 ) were exposed to drying soil, to investigate whether endogenous abscisic acid (ABA) concentrations and leaf water relations regulated stomatal behaviour. We measured ABA concentrations in xylem and tissue of the first and second trifoliate leaves respectively; stomatal conductance (gs ) and leaf water potential (Ψleaf ) in both leaves; and water content in soil. Cultivar variation in leaf area and g s caused different rates of soil drying, but g s and Ψ leaf declined similarly with soil drying in all cultivars. Variation in leaf xylem ABA concentration better explained stomatal responses than foliar ABA concentration in some cultivars, and was highly correlated with stomatal conductance. Xylem ABA concentration in well-watered soil was highest in Union , and in drying soil was lowest in Jindou 21 and Long Huang 2 , although the latter had the highest foliar ABA concentrations. Jindou 21 accumulated lower xylem ABA concentrations than other cultivars as soil moisture or Ψ leaf decreased, but its stomatal sensitivity to xylem ABA was greater. Because cultivars varied in both ABA accumulation and stomatal sensitivity to ABA, but had similar stomatal sensitivity to Ψ leaf , leaf water relations seem more important in regulating stomatal closure of soybean.
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Affiliation(s)
- Pedro Castro-Valdecantos
- Lancaster Environment Centre, Lancaster LA1 4YQ, UK; and School of Life Sciences and Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Sha Tin, Hong Kong, China; and The Joint Institute for the Environmental Research and Education, Guangzhou, China; and Present address: Department of Agronomy, Escuela Técnica Superior de Ingeniería Agronómica, University of Seville, Ctra. Utrera km. 1, Seville 41013, Spain
| | - Jaime Puértolas
- Lancaster Environment Centre, Lancaster LA1 4YQ, UK; and Present address: Department of Botany and Plant Ecology and Physiology, University of La Laguna, Facultad de Farmacia, Avd Astrofísico Francisco Sánchez s/n, San Cristóbal de La Laguna, Canary Islands 38200, Spain
| | - Ian C Dodd
- Lancaster Environment Centre, Lancaster LA1 4YQ, UK; and The Joint Institute for the Environmental Research and Education, Guangzhou, China
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