9种园林植物的耐盐性比较  

Comparison of saline resistance of 9 landscape plants

作　　者：张涛[1] 张雯[1] 段大娟[1] 杜向前 张志明[3] 

机构地区：[1]河北农业大学,河北保定071000 [2]衡水市林业科学研究所,河北衡水053000 [3]衡水市园林管理局,河北衡水053000

出　　处：《河北林果研究》2014年第4期384-389,共6页Hebei Journal of Forestry and Orchard Research

基　　金：河北省林业局项目"内陆平原盐碱区耐盐树种筛选及种植应用研究"(0708330)

摘　　要：采用田间盆栽试验法,用衡水市区原土配制成含盐量分别为2.2g/kg、3.1g/kg、4.2g/kg、4.9g/kg、6.7g/kg、10.2g/kg的栽培土对9种供试植物进行了盐胁迫处理,测定了供试植物的存活率、相对生长量、叶绿素含量及相对含水量等指标,对9种植物的耐盐性进行研究。结果表明:在盐胁迫下,9种植物的存活率、相对生长量、叶绿素含量及相对含水量等指标均呈明显下降趋势,下降程度因种类而异。综合各指标的分析可知,9种植物的耐盐性差异较大,其耐盐性强弱的顺序为:白蜡>国槐>木槿>栾树>冬青卫茅>紫叶李>紫丁香>金叶女贞>楸树。Nine landscape plants w ere studied to understand their salt tolerance w hen they were treated with the soil from Hengshui urban district in the saltness of 2 .2 ,3 .1 ,4 .2 ,4 .9 , 6 .7 and 10 .2 g/kg .Survival rate ,relative grow th increments ,chlorophyll content and rela‐tive water content in the leaves were measured after the treatments to the potted plants .The results showed that under the salt atress ,the survival rate ,relative growth increments ,chlo‐rophyll content and relative water content of the plants decreased with the salt stress ,but their decreasing degree varied with each plant .According to multiple analysis of the total in‐dexes ,there were significant differences between the tested 9 plants in salt tolerance and the order of salt tolerance of the determined 9 plants was as gollows ：Fraxinus chinensis〉 So‐phora japonica 〉 Hibiscus syriacus 〉 Koelreuteria paniculata 〉 Euonymus japonicus 〉Prunus cerasifera cv .atropurpurea〉 Syringa oblata 〉 Ligustrum × Vicaryi 〉 Catalpa bungei .

关 键 词：园林植物 耐盐性 存活率 相对生长量 叶绿素含量 相对含水量 

分 类 号：S685[农业科学—观赏园艺]