【摘要】 用主分量分析法对11种沙拐枣的水势,相对含水率,蒸腾强度、束缚水/自由水、体积/表面积。茎中维管束数目和表皮气孔密度7个指标综合分析,得出11种沙拐枣抗旱性由强到弱的顺序为;红皮沙拐枣→头状沙拐枣→白皮沙拐枣→心形沙拐枣→东缰沙拐枣→小果沙拐枣→膜果沙拐枣→蒙古沙拐枣→乔木状沙拐枣→精河沙拐枣→昆仑沙拐枣。更多还原

【Abstract】 Stomatal density,number of vascular bundle,relative water content,water petential,trans piration rate,bound water content-free water coatent ratid,and volume-surface area ratio of stem were measured to evalute drought resista--nce of 11 species using principal component analysis method.The orders of 11 species (from strong drought resistance to weak drought resistance) are,C. rubicun dum -- C. capult medusae --C.leucocladum--C.cond atum -- C. K1ementzii--C. Pumilum - - C. junceum--C.mongolicum-- C. anborescens--C.ebi-nuricum--C. ro更多还原