摘要
以黑籽南瓜和白籽南瓜种子为材料,用120、180、240 mmol/L NaCl进行处理,对黑籽南瓜和白籽南瓜发芽期的耐盐性进行了比较。结果表明:在各个NaCl浓度下,白籽南瓜的发芽势、发芽率、发芽指数都高于黑籽南瓜,且白籽南瓜种子萌发的活力指数和胚根的根系活力高、胚根细胞质膜渗透率低。比较两者的盐害指数得出,白籽南瓜发芽期耐盐性高于黑籽南瓜。
Two squash varieties ( Cucurbita ficifolia Bouche. and Cucurbita moschata Duch. ex Poir. ) were treated with different concentrations of NaCl (120, 180, 240 mmol/L ), and the salt tolerance in phrase of seed germination was compared. The results indicated that Cucurbita moschata has stronger salt-tolerance than Cucurbita ficifolia in phrase of seed germination under NaCl stress, with higher germination potential, germination rate, germination index, activity index and root activity, and lower salt injury index and leakage of radicle in Cucurbita moschata than those in Cucurbita ficifolia.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2005年第5期42-44,共3页
Journal of Hebei Agricultural University
基金
农业部"蔬菜遗传与生理重点开放实验室"资助项目(2003-2004年度)
关键词
NACL
黑籽南瓜
白籽南瓜
萌发种子
NaCl
Cucurbita ficifolia
Cucurbita moschata
seed germination