Variabilidad de respuesta de 8 cultivares de tomate al estrés salino durante los primeros estadios de desarrollo

Amador, Carlos Ávila; Martínez, L.; Peñuelas-Rubio, Ofelda; Aguilera, Jorge González

doi:10.46420/9786581460785cap5

Cited by 2 publications

(4 citation statements)

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“…Fifty-five wild tomato lines and the commercial hybrids Imperial ® (Enza Zaden, San Juan Bautista, CA, USA) and Reserva ® (Vilmorin, Salinas, CA, USA) were evaluated using a sodium chloride concentration of 150 mM (13.7 dS•m −1 ), as well as a control with the absence of NaCl (0 mM). The used NaCl concentration was selected based on previous laboratory tests and various investigations [5,15,[33][34][35][36][37][38][39]. Since the concentration of 150 mM of NaCl was not a lethal dose, it allowed us to discriminate tolerant genotypes from those that were susceptible.…”

Section: Germination Salt Tolerance Testmentioning

confidence: 99%

“…This corresponds to adding 10.227 g of NaCl to a liter of nutritive solution. The selection of this NaCl concentration was based on previous tests and the results from Bogoutdinova et al [5], Sanjuan-Lara et al [14], Ávila-Amador et al [37], Wafa'a [41], and Saeed et al [42]. The floating raft system used with this concentration allowed the survival of seedlings for 12 days after the application of treatments used to discriminate tolerant and susceptible genotypes.…”

Section: Salt Tolerance Test In Seedlingsmentioning

confidence: 99%

“…There are multiple mechanisms that explain the salt tolerance of wild tomatoes, such as the regulation of Na + and Cl − ion absorption and distribution, osmoregulation, and antioxidant defense [10,15]. Likewise, wild tomatoes have shown advantages over commercial varieties under salt stress conditions (3, 6, 9, and 10.2 dS•m −1 ), highlighting their importance as a genetic reservoir for tolerance to this condition [35,37,44].…”

Section: Germination Testmentioning

confidence: 99%

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Sodium Chloride Tolerance during Germination and Seedling Stages of Tomato (Solanum lycopersicum L.) Lines Native to Mexico

López-Méndez,

Rodríguez-Pérez,

Mascorro-Gallardo

et al. 2024

Horticulturae

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Tomato is considered moderately sensitive to salinity, which detracts from the quality and yield of its fruit; therefore, wild populations have been used as a genetic resource. The aim of this research was to identify lines derived from wild tomato populations with tolerance to salinity during the germination and seedling stages. During germination, 52 wild lines and 2 commercial hybrids (Imperial®, Reserva®) were subjected to treatment with 150 mM and 0 mM NaCl and evaluated. The test was carried out for 20 days in a germination chamber with constant darkness, a temperature of 25 ± 2 °C and relative humidity conditions of 80 ± 4%. At the seedling stage, 22 wild tomato lines with the best performance in the germination test and 2 commercial hybrids (Imperial®, Topanga®) were evaluated for 12 days in a floating raft system. Concentrations of 175 mM and 0 mM of NaCl were used. During germination, the saline condition decreased the germination percentage (65.2%), speed of germination (88.2%), steam length (72.5%), root length (46.56%), number of normal plants (59.5%), stem dry matter (68.78%), root dry matter (61.99%), and total dry matter (67.1%). At the seedling stage, this condition decreased (p < 0.05) the aerial part dry matter (46.37%), leaf area (59.35%), root length (42.43%), final plant height (40.24%), and growth rate (71.42%). Seventeen tolerant genotypes were identified in one of the two developmental stages, while one genotype showed tolerance in both stages. These results indicate that there are different response mechanisms in each developmental stage. Native tomatoes play an important role in the identification of tolerant genotypes since they can be used as genetic resources for obtaining commercial genotypes with salt tolerance.

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Section: Germination Salt Tolerance Testmentioning

confidence: 99%

Section: Salt Tolerance Test In Seedlingsmentioning

confidence: 99%

Section: Germination Testmentioning

confidence: 99%

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Sodium Chloride Tolerance during Germination and Seedling Stages of Tomato (Solanum lycopersicum L.) Lines Native to Mexico

López-Méndez,

Rodríguez-Pérez,

Mascorro-Gallardo

et al. 2024

Horticulturae

View full text Add to dashboard Cite

show abstract

“…There are multiple mechanisms that explain the salt tolerance of wild tomatoes such as the regulation of Na + and Clion absorption and distribution, osmoregulation and antioxidant defense [9,14,15]. Likewise, wild tomatoes have shown advantages over commercial varieties under salt stress conditions (3, 6, 9 and 10.2 dS•m -1 ), highlighting their importance as a genetic reservoir for tolerance to this condition [35][36][37].…”

Section: Germination Testmentioning

confidence: 99%

NaCl Tolerance during Germination and Seedling Stages of Tomato (Solanum lycopersicum L.) Lines Native to Mexico

López-Méndez,

Rodríguez-Pérez,

Mascorro-Gallardo

et al. 2023

Preprint

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Tomato is considered moderately sensitive to salinity, which detracts from the quality and yield of its fruit; therefore, wild populations have been used as a genetic resource. The aim of this research was to identify lines derived from wild tomato populations with tolerance to salinity during the germination and seedling stages. During germination, 52 wild lines and 2 commercial hybrids were subjected to 150 mM and 0 mM NaCl and evaluated. The test was carried out for 20 days in a germination chamber with constant darkness, temperature of 25±2 °C and relative humidity of 80±4%. At the seedling stage, 22 wild tomato lines with the best performance in the germination test and 2 commercial hybrids were evaluated for 12 days in a floating raft system. Concentrations of 175 mM and 0 mM NaCl were used. Seventeen tolerant genotypes were identified at one of both developmental stages, while one genotype showed tolerance at both stages. These results indicate that there are different response mechanisms in each developmental stage. Native tomatoes play an important role in the identification of tolerant genotypes since they can be used as genetic resources for obtaining commercial genotypes with salt tolerance or as potential rootstocks.

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Variabilidad de respuesta de 8 cultivares de tomate al estrés salino durante los primeros estadios de desarrollo

Cited by 2 publications

References 0 publications

Sodium Chloride Tolerance during Germination and Seedling Stages of Tomato (Solanum lycopersicum L.) Lines Native to Mexico

Sodium Chloride Tolerance during Germination and Seedling Stages of Tomato (Solanum lycopersicum L.) Lines Native to Mexico

NaCl Tolerance during Germination and Seedling Stages of Tomato (Solanum lycopersicum L.) Lines Native to Mexico

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