Seed priming stimulate germination and early seedling growth of Chinese cabbage under drought stress

• DOI: 10.1016/j.sajb.2015.03.195
• Publication Date: 2015-04-21T08:30:22Z
• Authors: Min Yan
• Keywords: Priming (agriculture); Potassium nitrate; Drought Tolerance; Osmotic shock

Drought stress influence seed germination and seedling growth of many plants. Seed priming could be used to alleviate the depressive effects drought stress. The improving are influenced by factors including methods, plant species intensity. mechanisms tolerance induced have not been clearly elucidated. study was carried out assess whether enhanced at stage characterize potential physiological biochemical alternation in Chinese cabbage. seeds were soaked 20 °C for 8 h distilled water, 200 mmol/l potassium nitrate (KNO3), urea, respectively. Both primed unprimed germinated under six levels (0, − 1.0, 2.0, 3.0, 4.0 5.0 MPa osmotic potential) PEG 6000. Results indicated that traits (germination percentage, vigor index) cabbage all decreased gradually with increasing Three types KNO3 urea increased as compared seed. conferred treatments is associated modulating peroxidase (POD), superoxide dismutase (SOD) catalase (CAT) activities soluble sugar proline. results suggested serve an appropriate treatment increase early conditions.