Effects of induced salinity on growth, pod quality, root characteristics and Leaf nutrient accumulation of four Faba Bean (Vicia faba L.) cultivars differing in their broomrape tolerance [electronic resource].

Includes reference.

The effects of salinity on growth response, pod quality, root characteristics and leaf ion accumulation of four faba bean (Vicia faba L) cultivars (Giza 429, Giza 843 and Misr 1 Orobanche-tolerant and Giza 3 Orobanchesusceptable) were investigated. The plants were grown in pot experiment for 11 weeks supplied with a nutrient solution with the addition of 0, 50, and 100 mM NaC1 for 9 weeks. Salinity stress induced substantial differences between the four faba bean cultivars in the growth, root characteristics, tolerance index and ion accumulation. Salinity significantly decreased Ca²⁺, Mg²⁺, K⁺, HC0₃⁻ and SO₄²⁻ while significantly increased Na⁺, c1⁻, pH, and EC. Thus, salinity significantly increased Na⁺/K⁺ and Na⁺/Ca²⁺ ratios while decreased Ca²⁺/Na⁺ ratio compared with the control. Plant height, number of branches per plant, number of leaves and dry weight per plant, number of pods and pods dry weight per plant, total dry weight of pods per plant and dry weights of root, shoot and root plus shoot dry weight per plant, the salt tolerance indexes of faba plants were significantly reduced by increasing the salinity levels.

Summary in Arabic.

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