Effects of Microwave Treatment on Seed Vigor and Physiological Characteristics of Pirnus tabulaeformis Carr.
In order to study the changes of seed vitality and physiological characteristics of Pinus tabu-laeformis Carr.seeds under microwave treatment,the seeds with vitality gradient were selected by artificial aging method.On this basis,the seeds were treated with microwave for different power and time,and germination indexes such as germination rate,germination potential and germination index were measured after microwave treatment.Meanwhile,malonaldehyde(MDA),soluble protein(SP),activity of superoxide dismutase(SOD)and peroxidase(POD)were evaluated by membership function analysis.The results showed that suitable microwave treatment could shorten the germina-tion process of Pinus tabulaeformis Carr.seeds.With the increase of microwave treatment power and time,the germination ability and physiological status of medium and low vitality seeds firstly increased and then decreased,and the best microwave treatment combination was 300 W power and 40 s,which significantly improved the germination index and physiological index of different vitality seeds.
万方数据
维普
