摘要
为了提高华山松幼苗对高盐胁迫的适应性,利用0～200mmol/L的NaCl溶液对华山松种子浸种处理,研究其在高盐胁迫下(300mmol/L NaCl)的生长情况。结果表明,与清水浸种(对照)相比,200mmol/L NaCl浸种处理的种子发芽率增加16.34个百分点,发芽势增加7.67个百分点,幼苗茎长(苗高)增加34.85%,鲜质量增加7.01%,干质量增加20.79%,可溶性糖含量增加56.31%,SOD活性和MDA含量分别下降了68.84%和40.69%。表明200mmol/L NaCl浸种抗盐锻炼效果最好。
Abstract. The effect of high NaC1 stress（300 mmol/L）on seedlings growth of Pinusarmandii Franch. after seed soaking with low-NaCl concentration （0-200 mmol/L） was studied. After seed soaking with 200 mmol/L NaCl,the seed got the best salt resistance. In comparison with the con- trol（soaking with water）, the germination rate and germination energy increased 16.34 percentage points and 7.67 percentage points, respectively. Under this condition, the height of seedlings in- creased 34. 85%, wet weight and dry weight increased 7. 01% and 20. 79%, soluble sugar in- creased 56.31% ,SOD activity and MDA contents decreased 68.84% and 40. 69%, resoectivelv.
出处
《河南农业科学》
CSCD
北大核心
2013年第1期94-97,共4页
Journal of Henan Agricultural Sciences
基金
西南林业大学西南山地森林资源保育与利用省部共建教育部重点实验室资助项目(KLESWFU-201203)
关键词
低盐浸种
高盐胁迫
华山松
幼苗
抗盐锻炼
low-NaCl seed soaking~ high NaC1 stress
Pinusarmandii Franch
seedlings
saltresistance exercise
