The effect of different levels of drought stress on some physiological parameters of two cultivars of red and bush beans

Drought is one of the most important environmental stresses in many parts of the world, especially in warm and semi-arid areas, which significantly reduces the efficiency of the products. In order to investigate the effect of drought stress on some of the biochemical and physiological traits of Bean (Phaseolus vulgaris L.), a laboratory experiment was conducted on two cultivars of bush bean (G-13 cultivar) and red beans (Yaghout cultivar) in three treatments of water stress (30, 60) and 100 (control) percentage of field capacity in a randomized complete block design with three replications in Guilan University. The results showed that water stress at 30 and 60% crop capacity significantly reduced the relative humidity (RWC) and significantly increased proline, malondialdehyde (MDA) and soluble carbohydrates compared to control. The proline content in bush been was significantly more than red bean and MDA content of red bean was significantly more than a bush bean. Therefore, it can be concluded that bush bean is more susceptible to drought stress than red beans

کلیدواژه ها:

Physiological characteristics ، Water deficiency ، Bean