1. Response of two tomato cultivars to Field-applied proline and salt stress
- Author
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Kahlaoui, B., Hachicha, M., Teixeira, J., Misle, E., Fidalgo, F., and Hanchi, B.
- Subjects
fungi ,food and beverages - Abstract
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, Ca 2+ 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.
- Published
- 2013