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《Seed》 2011-02
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Study on Inhibition Effect of Zinc on Seed Germination and Root Elongation of Hibiscus hamabo Sieb.et Zucc.

CUI Da-lian,MA Yu-xin,YU Xing-wei,WENG Mi-na(Marine Science College,Zhejiang Ocean University Zhoushan,Zhejiang 316000,China)  
It is important to study the inhibition effect of Zinc on seed germination and root elongation of H.hamabo Sieb for planting H.hamabo Sieb.on the heavily pollution of coast and phytoremediation to heavy metal pollution Soil.The changes of seed germination rate,germinating energy,root elongation and total biomass of H.hamabo Sieb were determined in different concentration of Zinc.The results showed that Zn2+ of lower concentration could promote the seed germination of H.hamabo Sieb.but it was insensitive to the Zn2+concentration rised,and showed inhibitional effect at the Zn2+concentration increased 400mg/g.Inhibition effect of Zinc on seed germination rate was much less compared with that of the root elongation and total biomass.With the increasing of Zn2+ concentration,the root elongation and biomass obviously decreased.There was a positive relation between the inhibitory rate on root elongation and Zn2+of concentration.
【Fund】: 浙江省教育厅资助项目(21106004109)
【CateGory Index】: S793.9
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