文献类型：期刊文献

中文题名：4种锦鸡儿属(Caragana)植物抗旱性研究

英文题名：Study on Drought Resistance of 4 Species of Caragana

作者：章尧想[1] 刘芳[1] 段娜[1] 徐军[1] 陈海玲[1] 张格[1]

第一作者：章尧想

机构：[1]中国林业科学研究院沙漠林业实验中心

年份：2014

卷号：30

期号：19

起止页码：25-29

中文期刊名：中国农学通报

外文期刊名：Chinese Agricultural Science Bulletin

收录：CSTPCD;;CSCD:【CSCD_E2013_2014】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2011005-6);中央级公益性科研院所基本科研业务费专项资金(CAFYBB2012003);国家林业科学技术推广项目([2012]31号)

语种：中文

中文关键词：干旱胁迫;锦鸡儿属;抗旱性;隶属函数

外文关键词：drought stress; Caragana; drought resistance; subordinate function

分类号：Q945.79;S718.43

摘要：为了给乌兰布和地区造林植物种的选择、植物配置以及植被建设方面提供更充足的理论依据,在田间持续干旱条件下,研究4种锦鸡儿属植物柠条锦鸡儿、中间锦鸡儿、狭叶锦鸡儿和荒漠锦鸡儿对干旱胁迫的生理响应,并用隶属函数法进行抗旱性综合评价。结果表明,4种锦鸡儿属植物幼苗叶片含水量和束缚水/自由水含量比值随着土壤含水量的减少而增加,方差分析表明,中间锦鸡儿和狭叶锦鸡儿差异不显著,与柠条锦鸡儿、荒漠锦鸡儿比有显著性差异,且柠条锦鸡儿的叶片含水量和束缚水/自由水含量比值最高;随着土壤干旱程度加剧,4种植物叶片水分亏缺、细胞膜透性都呈增加趋势,而离体叶片失水速率变化趋势基本相似,均表现为前期（0-9 h）失水快,后期（9-24 h）失水慢。根据抗旱隶属值,4种锦鸡儿属植物的抗旱性由大到小的顺序为：柠条锦鸡儿〉中间锦鸡儿〉狭叶锦鸡儿〉荒漠锦鸡儿。
In order to supply a more adequate theoretical basis for the selection of afforestation plants, plantconfiguration and vegetation construction in Ulanbuh Region, the physiological and biochemical responses of C.roborvsky, C. stenophylla, C. davazameii and C. korshinskii to drought stress were investigated under filedcondition and assessed comprehensively by means of fuzzy subordinate function method. The results showedthat the leaf water content and bound water/free water ratios of four species increased as the decreasing of soilwater content. Variance analysis showed that the difference between C. stenophylla and C.davazameii was notsignificant but had significant difference with C. roborvsky and C. korshinskii, and the leaf water content andbound water/free water ratio of C. korshinskii was the highest. With the increase of soil drought, water deficitand cell membrane permeability in leaves of four species increased, however, the dehydration rate of leaves invitro of different germplasm had the same tendency, water loss speed was rapid at 0-9 h at early stage whileslow at 9-24 h at late stage. Based on the drought membership function value, it was concluded that thedrought resistance order of four species was C.korshinskii〉C. davazameii〉C.stenophylla〉C. roborvsky.