A number of studies have pointed out how potassium can alleviate the effects of sodium toxicity on plants. However, the mechanisms of interaction between these two ions at the whole plant level are poorly understood so far. This study assessed some physiological mechanisms involved with the K-Na interaction in Jatropha curcas seedlings exposed to salinity. The experiment was carried out in a completely randomized, 2 × 2 factorial design (two Na and K levels in nutrient solution, with five replications). […]

The mechanisms for salt tolerance are complex and depend upon physiological and anatomical changes occurring in the whole-plant. This research aimed at evaluating ion retention, vegetative growth, and dry matter partitioning by two forage sorghum genotypes [Sorghum Bicolor (L.) Moench] irrigated with saline water. Selected seeds were sown in plastic pots containing 12 kg a sandy Argisol and grown under greenhouse conditions. The experiment was in completely randomized with treatments arranged in a 2 x 5 factorial design, consisting of […]