To investigate the effects of priming treatments on the germination and physiological characteristics of wheat seeds and to screen the optimal priming method for wheat seeds with low germination ability, Jimai 325 seeds with a germination rate of 32.67% after artificial aging treatment were used as the research object. Nine priming agents from three categories, including PEG 6000, gibberellic acid (GA3), and Vitamin B1 (VB1), were applied at different concentrations for soaking durations of 8 h, 16 h, and 24 h. The study examined the effects of various priming treatments on germination indicators, such as germination potential, germination rate, germination index, electrical conductivity, and the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT). The results showed that all priming treatments significantly enhanced the germination capacity of aged wheat seeds. The priming agents had significant impacts on germination potential, germination rate, and germination index, with VB1 and VB2 showing the best priming effects. As the priming time was extended, the germination potential, germination rate, and germination index of wheat seeds all significantly increased, with the effects of 16 h and 24 h being significantly better than those of 8 h. By measuring the leachate electrical conductivity and the activities of SOD, POD, and CAT for priming combinations that increased the germination rate to over 85%, it was determined that soaking in 0.08% VB1 for 16 h is the optimal priming method for Jimai 325 wheat seeds with an initial germination rate of 32.67%.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |