摘要
用不同浓度聚乙二醇(PEG-6000)模拟干旱胁迫条件,对6份雀麦种子进行萌发期抗旱评价,结果表明:4%和8%浓度处理的发芽率、发芽势、胚根生长、胚芽生长和发芽指数较对照没有变化或降低不显著,大于12%PEG浓度胁迫较对照显著降低胚根和胚芽的生长、发芽指数和发芽势。利用隶属函数法进行耐旱性综合评价表明:6份材料的抗旱性依次为A1>A5>A6>A3>A2>A4。
The drought resistance evaluation of 6 brome at seed germination stage was studied by simulated drought stress with different concentrations of PEG-6000 solution.The results showed that seeds, germination percentage , germination tendency , radicle length , germ length, germination index was no changed or not significant declined at4 %, 8% of PEG compared to the control;But over 12%PEG , the radicle length , germ length, germination index, germination tendency was declined significantly. the comprehensive evaluation on drought resistance was given based on membership function method indicated that the drought resistance of the 6 species decreased in order of AI〉AS〉A6〉A3〉A2〉A4.
出处
《内蒙古农业科技》
2010年第6期35-37,共3页
Inner Mongolia Agricultural Science and Technology
基金
中央级公益性研究院所基本科研业务费专项资金(中国农业科学院草原研究所)(2006-01-06)
中国科学院"西部之光"人才培养项目资助
内蒙古农业大学大学生科技创新项目
关键词
聚乙二醇
雀麦
萌发
耐旱性
PEG
Brome
Germination
Drought resisitance
作者简介
通讯作者：韩冰（1970-），女，内蒙古赤峰人，教授，博士，主要从事植物抗逆生物学研究。
