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《Shandong Agricultural Sciences》 2010-03
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Effects of Different Chemical Treatments on Germination and Salt Resistance of Cotton Seeds

WANG You-yuan1,2,LI Wei-jiang1*,DONG He-zhong1(1.Shandong Cotton Research Center/ Key Laboratory on Cotton Cultivation and Physiology of Shandong Province,Jinan 250100,China;2.Zhonglü(Hubei) Industrial Development Co.,Ltd.,Tianmen 431700,China)  
The delinted seeds of cotton variety Xinmian 33B soaked with different concentration solutions of GA3,DPC,Vitamin B6,NAA,salicylic acid,super absorbent polymer,potassium alginate and water respectively for 12 hours and then air-dried were used as the materials to determine the germination vigor and germination rate under the stress of 0,0.2%,0.4% and 0.6% of NaCl respectively.The main root length,plant height and dry weight of roots,stems and leaves were also measured on the 12th day after germination.The results showed that the treatments with 150 mg/L of DPC,50 mg/L of GA3,20 mg/L of Vitamin B6 and 25 mg/L of NAA promoted the seed germination and the seedling growth,moreover,the treatment with 25 mg/L of NAA was the best.Meanwhile,the treatment with 50 mg/L of GA3 obviously increased the seedling height,and the treatments with 150 mg/L of DPC and 20 mg/L of Vitamin B6 apparently increased the germination vigor and the salt resistance.
【Fund】: 山东省农业科学院高技术创新基金项目(2006YCX009);; 全国公益性行业(农业)专项(nyhyzx07-005-02)
【CateGory Index】: S562.041
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