Response of Vicia angustifolia L.Seed Germination and Growth to Drought Stress

Seeds germination and seedling stages were studied on the legume seeds of Vicia angustifolia L.to reveal the effects of drought stress on germination characteristics and water absorption characteristics.The results showed that the rate of seed water uptake,germination percentage,germination index,vigor index,seedling height,root length and plant water content decreased with the increase of concentration of PEG stress.However,seedling and root dry weight and root/shoot ratio initially increased followed by a decrease.The lowest osmotic potential threshold was-0.42 MPa.