摘要
用不同浓度的聚乙二醇(PEG)高渗培养液模拟不同程度的干旱胁迫环境,以与玉米自交系幼苗质膜损伤程度有关的过氧化物酶、超氧化物歧化酶、过氧化氢酶、丙二醛、维生素C和电导率为指标,运用模糊隶属函数法对22个玉米自交系的耐旱性进行综合分析。结果表明,模糊隶属函数法可以避免单一指标的片面性,能较全面地评价玉米的耐旱性。R09、N87-1、9635、TF-1、中自03属于耐旱性较强的自交系;FS018-2、3222、S28、沈137、963222、R08、48-2、黄C等自交系属于耐旱性中等的自交系;9526、L16和9603三个自交系为耐旱性较弱的自交系。
Different concentrations of Polyethylene glycol (PEG) were chosen to simulate different degrees of drought which seedling stage might maize encounters. Six coefficients, POD activity, SOD activity, CAT activity, MDA content, Vc content and electric conductivity were measured, which relate to drought tolerance of 22 inbred lines. And analysis the relation among six indexes and the drought tolerance was made by fuzzy subordination method. The study showed that fuzzy subordination method can analysis the drought tolerance completely and avoid the shortage of single index.And R09,N87-1,9635,TF-1, and zhongzi 03 were drought tolerance and FS018-2,3222,S28, shen 137,963222,R08,48-2 and huang C were middle rate drought tolerance. The 9526、L16 and 9603 were low rate drought tolerance.
出处
《干旱地区农业研究》
CSCD
北大核心
2005年第1期134-137,共4页
Agricultural Research in the Arid Areas
基金
四川省应用基础研究项目(2000-003-04-05)
