Author(s): Fatima Bensaida, Asma Achour, Moulay Belkhodja and Salma Bensalem
Article publication date: 2019-06-01
Vol. 37 No. 2 (yearly), pp. 1-10.
432
Keywords
Kn, Mineral contents, Okra, SA, salt stress.
Abstract
Saline stress develops specific adaptation strategies in plants to restore ionic and nutritional balance. The aim of this experiment is to find out the mineral balance of okra (Abelmoschus esculentus L.) under salt stress combined with kinetin (Kn) and salicylic acid (SA). Exogenous intake of kinetin and salicylic acid (0.5mM, 0.1 mM respectively) is by spray and plants are irrigated with NaCl at 100 and 200 mM.l-1 with Hoagland solution (1938). After 122 days, a cationic analysis of the leaves and roots is carried out by ICP-A for Na+, K+, Ca2+ and Mg2+. Results indicate that the exogenous application of the growth regulators attenuates the effect of the NaCl stress at 200 mM, by reducing the Na⁺ amount and increasing the one of K⁺ in leaves, while the hormonal combination gave no positive effect under the same NaCl treatment (200 mM).