不同柳杉优良无性系间的耐盐性差异  

Difference of Salt Tolerance Among Elite Clones of Cryptomeria

作　　者：骆鹏[1,2] 翁怀峰 施季森[1,2] 徐进 

机构地区：[1]南京林业大学南方现代林业协同创新中心,南京210037 [2]南京林业大学林学院,南京210037 [3]福建省霞浦杨梅岭林场,霞浦355100

出　　处：《分子植物育种》2016年第6期1609-1615,共7页Molecular Plant Breeding

基　　金：国家林业公益性行业科研专项(201304104);江苏省"六大人才高峰"项目(2014-NY-013);江苏高校优势学科建设工程资助项目(PARD);福建省林木种苗科技攻关四期项目(20130121)共同资助

摘　　要：本研究选取分布在我国东部地区的15个柳杉(Cryptomeria)优良无性系,以2年生的扦插苗开展耐盐性试验。通过盐胁迫处理,观测了柳杉不同无性系在盐胁迫后植株的形态状况和生理指标变化,及分析柳杉无性系间的耐盐性差异。根据综合盐害指数(SI)、每个无性系的耐最高土壤盐浓度以及生理指标的隶属函数值,得出这15个柳杉无性系的耐盐性能力差异排名为:57#>68#>11#>011#>66#>70#>54#>8#>52#>25#>74#>7#>59#>65#>3#。通过此项研究,可筛选出适宜沿海山地种植的耐盐性较强的柳杉无性系,为今后的分子标记辅助育种的实验提供理论依据。In this research, we selected 15 two-year-old cutting seedlings of different clones of Cryptomeria from the eastern part of China as the tested materials. It was observed that there were different changes among different salt-stressed clones in both morphological and physiological aspects. In addition, we also analyzed the difference of clones of Cryptomeriain salt tolerance. According to the analysis of the SI, the highest tolerance of salt concentration in soil and the fuzzy membership function of physiological indexes, the order of the salt tolerance capacity of the 15 clones was 57#>68#>11#>011#>66#>70#>54#>8#>52#>25#>74#>7#>59#>65#>3#. This study may help to select out those clones of Cryptomeria with high salt tolerance, which are suitable to be planted in the mountain area near the sea. What is more, it also provided theoretical proof for experiments on molecular marker-assisted breeding in future.

关 键 词：NACL胁迫 生理测定 柳杉 无性系 

分 类 号：S791.31[农业科学—林木遗传育种]