NaCl浸种对水稻种子发芽的影响  

Effect of NaCl Seed Soaking on Germination of Rice

作　　者：杜景红[1] 李北齐[1] 薛庆喜[1] 

机构地区：[1]黑龙江大学农业资源与环境学院,哈尔滨150080

出　　处：《中国农学通报》2013年第3期33-35,共3页Chinese Agricultural Science Bulletin

基　　金：黑龙江省教育厅科学技术研究面上项目"寒区水稻孕穗期及抽穗期低温胁迫时特异表达蛋白质研究"(12511408)

摘　　要：研究不同浓度的NaCl溶液浸种对水稻种子发芽和幼苗生长的影响。以0.5%、1.0%、1.5%、2.0%等4种浓度的NaCl溶液浸种24h,以蒸馏水(CK)为对照,测定水稻‘空育131’种子的发芽指标与幼苗生长状态。实验结果表明:随着NaCl浓度的升高,水稻种子发芽能力受到抑制的程度增大,水稻种子的发芽率、发芽势及发芽指数均呈下降趋势,各个处理浓度浸种对幼苗影响不显著。研究表明水稻种子萌发能忍耐的NaCl处理浓度为0.5%以下,高于0.5%的NaCl对水稻发芽起显著抑制作用。Seeds of rice were soaked by different concentrations of NaCl solution in order to study the effect on seed germination and seeding growth of rice.Four different concentrations（0.5%,1.0%,1.5%,2.0%） of NaCl solution were treated on seeds of＇Kongyu 131＇compared with the distilled water as control.The seed germination index and seeding growth state of rice was detected.The results showed that low concentration of NaCl（≤0.5%） had no significant effect on seed germination and seeding growth of rice.The seed germination rate,germination tendency and budding index became lower and lower with the ever higher salt concentration,and the seed germination was inhibited under high concentration of NaCl（0.5%）.There was no significant effect on seeding growth of rice＇Kongyu 131＇.The study indicated that the endurable stress of NaCl concentration for seed germination of rice was under 0.5%,rice seed germination was significant inhibited under higher concentration than 0.5% NaCl.

关 键 词：水稻 NACL 发芽率 发芽势 

分 类 号：S1[农业科学—农业基础科学]