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Effect of NaCl Stress on the Seed Germination and Seedling Growth of Belvedere Fruit

ZHANG Jian-wei et al (The College of Landscape Architecture,Henan Institute of Science and Technology,Xinxiang,Henan 453003)  
In the thesis the threshold value of water absorption of Belvedere(Kochia scoparia(L.) Schrad.) fruit in its seed germination and seedling growing under the NaCl stress was studied.The results were as follows: NaCl(100?mmol/L) can accelerate seed drinking and germination,and seedling growth of Belvedere Fruit;NaCl(100~300?mmol/L) can restrict seed drinking and germination,and seedling growth of wild Kochia scoparia,and with the increase of the Nacl concentration,the restricting function came more and more obvious.Threshold value of normal seed drinking and germination of salt tolerance was NaCl(300?mmol/L).Threshold value of normal seedling growth of salt tolerance was NaCl(400?mmol/L).
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