摘要
在组培条件下以69份中国南瓜(Cucurbita moschataDuch.)杂交种和4份商品种为试验材料,研究中国南瓜杂交种的耐盐状况,确定筛选耐盐材料的适当NaCl浓度。结果表明,中国南瓜杂交种在不同NaCl浓度处理下存在明显的耐盐性差异,69份杂交种在120mmol/L NaCl浓度处理下的盐胁迫指数介于29.94～100之间,呈正态分布,有6份杂交种表现出较高的耐盐性,其中360-3×112-2杂交种最耐盐。认为在组培条件下采用120mmol/LNaCl浓度处理中国南瓜幼苗是一种有效筛选耐盐材料的方法。
69 hybrids and 4 commercial varieties of pumpkin（Cucurbita moschata Duch.） were used for the study of salt-tolerance.NaCl concentration for selecting salt-tolerant material in vitro was determinated.The results showed that there were significant differences in salt tolerance among 10 tested materials with 6 salinities（0,40,80,120,160,200 mmol/L）.The salt stress index（SSI）of seedlings of 69 pumpkin hybrids ranged from 29.94 to 100,and the frequency distribution was normal by normal test.6 salt-tolerant hybrids were obtained,among the hybrid ＂360-3×112-2＂ showed the strongest salt tolerance.120 mmol/L NaCl was determined as an effective concentration to select salt-tolerant materials from pumpkin hybrid seedlings.
出处
《核农学报》
CAS
CSCD
北大核心
2007年第4期345-348,共4页
Journal of Nuclear Agricultural Sciences
基金
江苏省科技厅资助项目(BC2003306)
关键词
组培
中国南瓜杂交种
耐盐材料
筛选
in vitro culture
hybrid of pumkin（Cucurbita moschata Duch.）
salt-tolerant material
selection
