摘要： 在不同年份、不同灌水条件下,对国内外不同春小麦叶绿素含量及其与抗旱性的关系进行了研究,结果表明,在正常灌水条件下(对照),旱地品种叶绿素含量较水地品种低5.37.在旱胁迫条件下,旱胁迫处理的叶绿素含量较正常灌水降低2.39,旱地品种叶绿素含量降低值小于水地品种.年际间叶绿素含量的差异较小.叶绿素含量与碳同位素分辨率(Δ)呈极显著正相关.叶绿素含量与抗旱性密切相关.

关键词: 春小麦, 叶绿素含量, 碳同位素分辨率(&Delta, ), 旱胁迫, 抗旱性

Abstract: The chlorophyll content of domestic and overseas spring wheat in different ecosystem and its connection with drought resistance have been researched under irrigation condition in different year,the experimental results as the comparison indicated that the chlorophyll content of dry land is lower about 5.37 than that of wet land in the condition of irrigation.Under the dry stress condition,the dry stress treated chlorophyll content went down 2.39 compared with comparison and chlorophyll content of dry land went down 1.89 compared with that of wet land.That also has been found there is less discrepancy among different years of chlorophyll content.Chlorophyll content correlated Δ positively.And chlorophyll content correlated drought resistance tightly.

Key words: Wheat, Chlorophyll content, Carbon isotope discrimination( Δ) , Dry stress, Drought resistance

中图分类号: 

• S512.01