Effects of Different Storage Conditions on Germination Rate and Protective Enzymes Activity of Magnolia liliflora Desr.Pollen
The research was conducted to investigate the effects of four storage temperatures (room temperature, 4 ℃,-20 ℃ and-70 ℃) and five storage times (0, 10 days, 20 days, 30 days and 40 days) on Magnolia liliflora Desr.pollen germination and activities of peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD).The results showed that Magnolia liliflora Desr.pollen can remain a high germination proportion and strong self protection mechanism for 40 days at-20 ℃ and-70 ℃.During storage period, the change trend and the mechanism of three protective enzymes are different.SOD enzyme has greater effect on pollen germination rate than POD and CAT enzyme, and POD enzyme has greater effect on pollen germination rate than CAT enzyme.
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万方数据
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