高温吸胀PEG提高菜用大豆种子活力的研究
Study on Raising the Vigor of Vegetable Soybean seeds by PEG Treatment(High Temperature Imbibition)
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摘要: 用20%～25%的聚乙二醇(PEG6000)溶液处理菜用大豆种子8h后,可以促进种子的萌发,增强幼苗长势,显着提高其发芽率、发芽指数及活力指数;在田间条件下,表现出苗率提高,苗期株高和苗重均有所增加。经PEG处理的种子其吸水速度减缓,外渗物量减少,有利于细胞膜的修复和重建。Abstract: When the seeds were soaked by 20%25% PEG 6000 for 8h at 32t,the germination rate and vigor index of then were obviously increased.Under field condition,the emergence race,the weight and height of the seeding were greatly increased.The speed of taking up water and the leakage were greatly lowered if seeds were treated with PEG.It was suggested that the osmotic treatnient was avail-able for the reestablishing and repairing on the membranes,and thus raise the vigor of vegtahle soybean.
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[10] Chabot, J. F. et al. 1982. Ultrastructural Changes of membranes wisth hydlration in soybean seeds, Amer J. Bot.,69:623~633 [14] Hepdecker, W. 1977. Stress and seed germination; an agronomie view, The physiology and Biochemistry of Seed. Dormancy and Germination. A. A. Khan(ed).,P. 237~282, Elsevier/North Holland Biomedical Press. -
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