1. Tubérisation sous stress salin de vitroplants de pomme de terre (Solanum tuberosum L.)
- Author
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Tijani Mehouachi, Abir Messaï, Ezzedine Zid, Pierre Debergh, and Chérif Hannachi
- Subjects
Potato ,regeneration in vitro ,NaCl ,salt tolerance ,field tuberisation ,Tunisia ,Biotechnology ,TP248.13-248.65 ,Environmental sciences ,GE1-350 - Abstract
Tuberisation under salt stress of potato vitroplants (Solanum tuberosum L.). In Chott-Mariem (Tunisia), potato plants of Claustar variety, regenerated in vitro from a salt-adapted cal (3 g.l-1 of NaCl) and cultivated in presence of NaCl concentration of 4 g.l-1 have tuberised. These adapted plants were as outstanding as plants regenerated from a control cal and irrigated with NaCl-free water, relating to the number of tubers per plant and the average fresh weight of tuber. However, tubers of NaCladapted plants have shown a reduction in diameter and bud number, and they were affected by a deep fissuring when grown under irrigation with saline water. These results suggest that increasing the level of organic matter above 1 % in soil can be recommended in order to overcome such abnormalities, caused by salinity and saline water use (3 to 4 g.l-1 of NaCl) in the Sahel region (Mahdia, Monastir and Sousse).
- Published
- 2004