干旱地区农业研究2017，Vol.35Issue(4)：243-248,6.DOI:10.7606/j.issn.1000-7601.2017.04.37
春小麦品种“和尚头”的抗旱生理机制及评价
Evaluation on the drought resistance mechanism of spring wheat "Heshangtou"
摘要
Abstract
To explore drought resistance mechanism of "Heshangtou",a dryland spring wheat variety,drought stress (20％ PEG-6000) was used to investigate leaf water content (LWC),proline content,electrolyte leakage(EL) and MDA content,with "Plateau 448" and "Ningchtun No.4" being the control.The results indicated" Heshangtou" showed relatively higher LWC,proline content,lower EL and MDA content,compared with the control.Under the condition of 48 h drought,the LWC and prohne content of "Heshangtou" were significantly higher,and MDA content was significantly lower than the control.Additionally,no significant EL was observed between "Heshangtou" and "Ningchun No.4",while significantly lower EL than "Plateau 448" showed in "Heshangtou".The three varieties could be distinguished by physiological index based on duster analysis.In terms of comprehensive evaluation on drought resistance,the three varieties were ranked in the sequence of "Heshangtou","Ningchun No.4",and "Plateau 448" from high to low.关键词
春小麦/抗旱生理/抗旱性评价Key words
spring wheat/drought physiological/drought resistance evaluation分类
农业科技引用本文复制引用
杨倩,王海庆,陈志国,刘德梅..春小麦品种“和尚头”的抗旱生理机制及评价[J].干旱地区农业研究,2017,35(4):243-248,6.基金项目
中国科学院战略性先导科技专项(A类)子课题“高产优质小麦新品种分子设计与培育——西北高产抗病分子设计育种”(XDA08030106-2) （A类）
青海省科技计划项目“抗病、优质、高产春小麦青麦1号等品种示范推广”(2014-NS-511) （2014-NS-511）
