盐分、干旱及其交叉胁迫对皂角幼苗生长性状的影响  

Effects of Soil Salt,Drought and Their Intercrossing Stress on Growth Properties of Gleditsia sinensis Lam.

作　　者：孔红岭[1] 孙明高[1] 孔艳菊[1] 魏海霞[2] 于振群[1] 

机构地区：[1]山东农业大学林学院,山东泰安271018 [2]中国科学院青藏高原研究所,北京100085

出　　处：《中南林业科技大学学报》2007年第1期55-59,共5页Journal of Central South University of Forestry & Technology

基　　金：国家科技攻关计划重大专题(2002BA516A15-04);山东省农业良种产业化开发工程项目(2001500)

摘　　要：对皂角在土壤盐分、干旱及其交叉胁迫下生长性状进行研究.结果表明:皂角的存活率、苗高、生物量以及根系比重在干旱、轻度盐分和中度干旱与盐分的交叉胁迫处理下均能维持在较高的水平;叶保水力在各个胁迫条件下均高于对照;盐旱交叉胁迫下水分含量越高,越有利于皂角在盐分下的生长;皂角在轻度干旱胁迫、中度干旱胁迫、轻度盐分胁迫、轻度干旱轻度盐分交叉胁迫、轻度干旱中度盐分交叉胁迫、轻度盐分重度干旱胁迫、中度干旱轻度盐分胁迫、中度干旱中度盐分胁迫胁迫下能正常生长.The growth properties of Gleditsia sinensis Lam. under salt, drought and their intercrossing stress were studied. The results show that the survival rate, the height of seedlings, the hiomass and root weight ratio all kept at a high level under drought, light salt and their intercrossing stress; that the water-holding capacity was higher than that of the control under all the stresses; and that under salt and drought with their intercrossing stress, the more water Gleditsia sinensis Lam. contained, the better it grew with salt influence. Gleditsia sinensis Lam. could enjoy a normal growth under all the stresses of mild drought, moderate drought, mild salt, mild drought and salt, mild drought and moderate salt, mild drought and severe salt, moderate drought and salt, and moderate drought and moderate salt.

关 键 词：林木育种 盐分 干旱 交叉胁迫 皂角 生长性状 

分 类 号：Q945.78[生物学—植物学]