Response of two tomato cultivars to field-applied proline and salt stress
An experiment was carried out using saline water (6.57 dS.m-1) and subsurface drip irrigation (SDI) on two tomato cultivars (Solanum lycopersicum, cv. Rio Grande and Heinz-2274) in a silty clay soil. The former is a salinity tolerant and the latter a sensitive cultivar. Exogenous application of prol...
| Autor Principal: | Kahlaoui, B. |
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| Otros Autores: | Hachicha, M., Teixeira, J., Misle-Acevedo, Enrique, Fidalgo, F., Hanchi, B. |
| Formato: | Artículo |
| Idioma: | English |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: |
http://repositorio.ucm.cl:8080/handle/ucm/1282 |
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| Sumario: |
An experiment was carried out using saline water (6.57 dS.m-1) and subsurface drip irrigation (SDI) on two tomato cultivars (Solanum lycopersicum, cv. Rio Grande and Heinz-2274) in a silty clay soil. The former is a salinity tolerant and the latter a sensitive cultivar. Exogenous application of proline was done by foliar spray at two concentrations: 10 and 20 mg.L-1, with a control (saline water without proline), during the flowering stage. As a result of the proline applied, significant effects
were observed on both cultivars of tomato, particularly with low concentration of proline (10 mg.L-1). It led to increase of leaf area, growth length and fruit yield. Regarding mineral nutrition, Ca2+ was higher in different organs while low accumulation of Na+ occurred. However, Cl- was very low significantly in all tissues of plants of Rio Grande at the higher concentration of proline applied. |
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