摘要
利用不同浓度 Na Cl和 PEG处理 3种不同基因型春小麦幼苗 ,在处理的第 7天采样测定叶片组织含水量、胁迫伤害率、游离脯氨酸、可溶性糖及无机离子 Na+、K+含量。结果表明 ,在等渗条件下 ,Na Cl胁迫引起的小麦叶片组织含水量的下降、胁迫伤害率的增大及叶片和根部的脯氨酸、可溶性糖、Na+、K+含量的增加 ,均大于PEG胁迫引起的变化。小麦改良品种京 3377在盐分和水分胁迫下 ,其抗旱抗盐性都较强 。
Three different genetype spring wheats were treated with different concentrations of NaCl and iso osmotic PEG solutions; The leaf water content, stress susceptibility index, the content of proline, soluble sugar, Na\++ and K\++ of leaf and root were determined in 7 days after treatment.The results showed that under iso osmotic condition, the decline of leaf water content, the increase of salt stress susceptibility index, the content of proline, soluble sugar, Na\++ and K\++ under salt stress were larger than those under iso osmotic PEG stress. J3377 which had both more salt tolerance and more drought tolerance than other varieties under drought and salt stress was a improved variety; while hongmangmai which had less drought and salt tolerance than other varieties was a local variety.\;
出处
《干旱地区农业研究》
CSCD
北大核心
2002年第1期52-56,共5页
Agricultural Research in the Arid Areas
基金
国家重点基础研究发展规划项目 (G19990 1170 4)
中国科学院水土保持研究所高级访问学者项目
