张智猛,万书波,戴良香,吴正峰,陈静,苗华荣.花生萌芽期水分胁迫品种适应性及抗旱性评价[J].干旱地区农业研究,2009,27(5):173~182
花生萌芽期水分胁迫品种适应性及抗旱性评价
A study on appraisal of suitability and drought-resistance of different peanut varieties at germination stage
  
DOI：10.7606/j.issn.1000-7601.2009.05.32
中文关键词:  花生品种  萌芽期  水分胁迫  抗旱性
英文关键词:peanut variety  germination stage  water stress  drought resistance
基金项目:国家科技支撑计划项目(2006BAD21B04-2)； 山东省农科院创新基金项目
作者单位
张智猛 Peanut Research Institute of Shandong Province, Qingdao, Shandong 266100, China 
万书波 Shandong Academy of Agricultural Sciences, Ji’nan, Shandong 250100, China 
戴良香 Peanut Research Institute of Shandong Province, Qingdao, Shandong 266100, China 
吴正峰 Peanut Research Institute of Shandong Province, Qingdao, Shandong 266100, China 
陈静 Peanut Research Institute of Shandong Province, Qingdao, Shandong 266100, China 
苗华荣 Peanut Research Institute of Shandong Province, Qingdao, Shandong 266100, China 
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中文摘要:
      通过PEG6000人工模拟干旱条件,研究了27个花生品种种子萌芽期对渗透胁迫的响应及抗旱性评价。结果表明,水分胁迫降低了各品种的发芽率,阻碍了胚根和胚芽的生长,降低了种子中贮藏物质的利用效率;不同品种抗旱性存在明显差异,在水分胁迫下抗旱性强的品种仍然保持较高的发芽率和生根率;在17.5%PEG6000水分胁迫处理下萌发期各指标a值(抗旱指数)品种间差异明显,可以作为花生品种抗旱鉴定浓度。
英文摘要:
      The study on the response to water stress and drought resistance estimate of 27 varieties at germination stage was conducted through adopting PEG solution simulated soil drought treatment.The results showed that the germinating vigor and germinating rate,the growth rate of embryo bud and root,and the transformation percentage of stored substance were all decreased under drought stress.The drought resistance of every variety was different,and higher drought-resistant varieties kept higher vigor of germination and rooting ratio.There was significant difference on the "a" value of every indexes of every peanut variety under 17.5% PEG water stress,and it can be used as the concentration index of drought-resistance identification.
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