Abstract                 Volume:7  Issue-8  Year-2020          Original Research Articles

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Response of seven tomato (Lycopersicon esculentum Mill.) cultivars produced in Benin to salinity stress at young plant stage
Eliane Kinsou1, Armel Mensah2, David K. Montcho Hambada3, Séraphin Ahissou Zanklan1, Agapit Wouyou1, Julien K. Kpinkoun1, Françoise Assogba Komlan2, Christophe Bernard Gandonou1*
1 Unité de Recherche sur l’Adaptation des Plantes aux Stress Abiotiques, les Métabolites Secondaires et l’Amélioration des Productions Végétales, Laboratoire de Physiologie Végétale et d’Etude des Stress Environnementaux, Faculté des Sciences et Techniques (FAST/UAC), 01BP526, Tri Postal, Cotonou, République du Bénin
2 Centre de Recherches Agricoles Plantes Pérennes (CRA-PP), Pobè, Institut National des
Recherches Agricoles du Bénin (INRAB), Abomey-Calavi, République du Bénin.
3 Ecole de Gestion de la Production Végétale et Semencière, Université Nationale d’Agriculture, République du Bénin
*Corresponding author
Abstract:

In this study, we evaluated the salt resistance level of seven tomato cultivars Akikon, Tounvi, Thorgal, F1 Mongal, Padma, Petomech and TLCV15 at young plant stage. The experiment was laid out as a Randomized Complete Design (RCD) with four replications in a greenhouse. Three-week old plants from the seven cultivars were submitted in pots containing a mixture of potting soil and sand to five NaCl concentrations: 0; 30; 60; 90 and 120 mM NaCl corresponding respectively to an electric conductivity of 0.221; 3.827; 6.47; 10.56 and 14.02 dS.m-1 by irrigation every two days. Plant growth parameters were evaluated after two weeks. Salt effect caused a reduction of young plant growth whatever the growth parameter considered with a significant difference among cultivars. Growth of cultivars Padma, Akikon and Petomech was more affected by salt stress with two or three growth parameters significantly reduced at 30 mM NaCl whereas no growth parameter was significantly affected at less than 60 mM NaCl for cultivars Thorgal and Tounvi. Thus, cultivars Akikon, Petomech and Padma appeared as the most sensitive to salt stress. In contrast, cultivars Tounvi and Thorgal appeared as the most salt-resistant. Cultivars F1 Mongal and TLCV15 had intermediary behavior.

Keywords: Cultivars discrimination, Plant growth, Salt-resistance Tomato
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How to cite this article:

Kinsou, E., Mensah, A., Montcho Hambada, D. K., Zanklan, A. S., Wouyou, A., Kpinkoun, K. J., Assogba Komlan, F., Gandonou, C. B., 2020. Response of seven tomato (Lycopersicon esculentum Mill.) cultivars produced in Benin to salinity stress at young plant stage.Int.J.Curr.Res.Biosci.Plantbiol. 7(8): 1-11. doi: https://doi.org/10.20546/ijcrbp.2020.708.001