6种苗木抗旱性评价指标分析  

COMPREHENSIVE ASSESSMENT OF DROUGHT RESISTANCE OF SIX TREE SPECIES SEEDLINGS

作　　者：贾万利 苗海霞[2] 孙明高[2] 侯立群[3] 张慎鹏[2] 王友平[2] 

机构地区：[1]淄博市原山林场,山东淄博255020 [2]山东农业大学林学院,山东泰安271018 [3]山东省林业科学研究院,山东济南250001

出　　处：《山东农业大学学报（自然科学版）》2007年第2期163-168,共6页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：山东省农业良种产业化开发工程项目(2001500):耐干旱瘠薄树种的选育

摘　　要：本文以一年生实生苗板栗(Castanea mollissima BL.),核桃(Juglans regia L.),花椒(Zanthoxylum bungea-num Maxim.),柿子(Diospyros kaki L.f.),杏(Armeniaca vulgaris Lam.),皂角(Gleditsia sinensis Lam.)为试验材料,对苗木在干旱胁迫下的生长和生理生化差异进行研究的基础上,建立了抗旱性筛选的指标体系,对6种苗木的抗旱性进行了评价,并对代表干旱适应能力指标及抗旱生产力指标进行了比较分析,筛选出了蒸腾速率、吸水能力、渗透调节、抗氧化系统、净光合速率、水分利用效率、生物量7项指标,用于6种苗木抗旱能力的综合评价指标。The one - year - old seedlings of six economic tree species were selected as the experimental materials and the growth, physiological and biochemical characteristics under water stress were studied. The index system of comprehensive assessment of drought resistance ability of the six tree species seedlings were established. On this basis, the indices of adaptability to drought and of productivity to drought were analyzed. Transpiration rate, water - absorbing ability, osmotic adiustment, anti - oxidant system, net photosynthesis rate. water utilization efficiency, biomass production were selected to be used as evaluation index in the drought- resistant assessment of six tree species.

关 键 词：干旱胁迫 抗旱性 评价指标 综合评价 

分 类 号：S718.3[农业科学—林学]