摘要
以夏枯草种子为试材,采用0.01~0.50mmol·L^(-1) SNP溶液对夏枯草种子进行浸种处理,研究了以上浓度对120mmol·L^(-1) NaCl模拟盐胁迫下夏枯草种子萌发与幼苗生长的影响。结果表明:NaCl胁迫显著抑制了夏枯草种子萌发,不同浓度SNP溶液浸种对夏枯草种子萌发有不同程度的促进作用,其中0.10mmol·L^(-1) SNP处理比盐胁迫对照组夏枯草的种子发芽率和发芽势分别提高68.06%和130.56%,发芽指数与活力指数分别提高78.71%和325.93%,胚根长、胚芽长及根芽比分别提高165.63%、43.43%与74.49%,鲜重提高57.66%。综合评定表明,在不同的SNP浸种处理中,0.10mmol·L^(-1) SNP处理总体效果最佳。
Taking seed of Prunella vulgaris as test material,using 120mmol·L（-1） NaCl to imitate salt stress,the effects of sodium nitroprusside（SNP）at different concentrations（0.01-0.50 mmol·L（-1））on seed germination and seedling growth under NaCl stress were investigated.The results showed that seed germination of Prunella vulgaris was significantly inhibited by NaCl stress,SNP treatments could relieve the inhibition of seed germination under NaCl stress in different degree.0.10mmol·L（-1） SNP increased the seed germination rate and germination energy by 68.06% and130.56%,germination index and vigor index by 78.71% and 325.93%,radicle length and plumule length by 165.63% and 43.43%,radicle-plumule ratio by 74.49%,and fresh weight by 57.66%.The comprehensive evaluation indicated that the concentration of SNP at 0.10mmol·L（-1） was the best relieving effect in all the treatments.
出处
《北方园艺》
CAS
北大核心
2016年第11期155-160,共6页
Northern Horticulture
基金
河南省科技攻关计划资助项目(162102110095)
河南省高等学校重点科研资助项目(15A180037
16A220005)
河南科技大学高级别项目培育基金资助项目(2015GJB029)
河南科技大学青年基金资助项目(4024-13350066
4026-13350041)
河南科技大学博士科研启动基金资助项目(4024-13480054
4026-13480038)
河南科技大学大学生研究训练计划(SRTP)资助项目(2014254
2014281
2015152)
关键词
夏枯草
NO
硝普钠
NACL胁迫
种子萌发
Prunella vulgaris
NO
sodium nitroprusside
NaCl stress
seed germination
