水分胁迫下燕麦萌芽期抗旱指标的研究  

Studies on the Drought Resistance Index of Oat at Germination Stage under Water Stress

作　　者：齐华[1] 许晶[1] 孟显华[1] 王晓波[1] 刘明[1] 管宏军[1] 

机构地区：[1]沈阳农业大学,辽宁沈阳110161

出　　处：《种子》2009年第7期7-10,共4页Seed

基　　金：辽宁省科技厅计划项目(2006215008)资助

摘　　要：利用高渗溶液模拟干旱胁迫条件,以种子萌发抗旱指数为依据进行燕麦品种萌芽期抗旱性筛选,研究结果表明:蒙2034和9342-4-1-3抗旱性最好,蒙麦H8814抗旱性较好,坝莜五号、冀张莜二号、Ly03-08等抗旱性较差,草莜一号抗旱性最差。相关分析结果表明:胚根长、胚根干重、贮藏物质运转率与种子萌发抗旱指数相关系数达到了显著水平,这些指标可以作为燕麦萌芽期抗旱性鉴定指标。Under drought intimidate simulated by hypertonic solution, using drought resistance index as basis to screen wheat strains with drought resistance at germination period. Results showed that Meng 2034 and 9342-4-1-3 had the best drought resistance, Mengmai H 8814 had better drought resistance, Bayou No. 5, Jizhang you No. 2, Ly03-08 etc. had worse drought resistance, and Caoyou No. 1 had the worst drought resistance. Correlation analysis showed that the length of embryo-shoot and it＇ s dry weight , and reserve substance revolve ratio were correlated significantly with drought resistance index of seed germination, these index could be used as drought resistance identified index for oat at germination period.

关 键 词：水分胁迫 燕麦 萌芽期 抗旱性 

分 类 号：S512.6[农业科学—作物学]