Effect of sodium chloride on the germination of the seeds of a collection of carrot accessions (Daucus carota L.) cultivated in the region of Sidi Bouzid

Kahouli, Basma; Borgi, Zied; Hannachi, Chérif

Journal of Stress Physiology & Biochemistry, 2014, Vol. 10, No. 3, pp. 28-36 ISSN 1997-0838
Original Text Copyright (cc) 2014 by Kahouli, Borgi and Hannachi

ORIGINAL ARTICLE

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Effect of sodium chloride on the germination of the seeds of a collection of carrot accessions (Daucus carota L.) cultivated in the region of Sidi Bouzid

Basma Kahouli ¹*, Zied Borgi ² and Chérif Hannachi ¹

¹ University of Sousse, Department of Horticulture and Landscape, Higher Institute of Agronomy. 4042 Chott Mariem, Tunisia.
² Regional Centre of Agricultural Research, 9100, Sidi Bouzid, Tunisia.

* Telephone No.: +21652554666
*E-Mail: kahouli.basma@yahoo.fr

Received March 8, 2014

Seeds of ten accessions of carrot (Daucus carota L.) collected from seven areas in the region of Sidi Bouzid, Lessouda (three accessions: L₁, L₂ and L₃) Faid (one accession: F₄), El Ogla (one accession: E₅), Regueb (two accessions: R₇ and R₈), Lahweze (one accession: L₁₀) Garet Hdid (one accession: G₁₁) and Souk Jedid (one accession: S₁₂) were germinated at 20° C in the dark and in the presence of NaCl (0, 2, 4, 6, 8, 10, 12, 14 and 16 g/l) during 14 days. The results obtained showed that germination is possible until the highest concentration of salt (16 g/l) but germination and speed of germination decrease according to the concentration, so the accession L₃ was the most tolerant and accessions L₁, L₂ and S₁₂ was the most sensitive.

Key words: Carrot, accessions, germination, NaCl, Sidi Bouzid