4个槐树品种的耐盐性评价  

Evaluation of Salt Tolerance of Four Sophora japonica cultivars

作　　者：王婉朝 付茵茵 李双云[1] 庞彩红[1] 刘盛芳[1] 哈新英 杨克强[2] 夏阳[1] WANG Wanchao;FU Yinyin;LI Shuangyun;PANG Caihong;LIU Shengfang;HA Xinying;YANG Keqiang;XIA Yang(Improvement/State Key Laboratory of Forest Genetic Breeding in Yellow River Delta,Jinan 250014;College of Forestry,Shandong Agricultural University,Tai'an,Shandong 271018;Jinan Urban and Rural Development Service Center,Jinan 250000)

机构地区：[1]山东省林业科学研究院/山东省林业遗传改良重点实验室/黄河三角洲林木遗传育种国家林草局重点实验室,山东济南250014 [2]山东农业大学林学院,山东泰安271018 [3]济南市城乡建设发展服务中心,山东济南250000

出　　处：《山东林业科技》2022年第6期38-46,共9页Journal of Shandong Forestry Science and Technology

基　　金：山东省重点项目“红花槐树新品种‘姹紫1号’产业化关键技术研究”(2019GNC106116);中央财政林业科技推广项目“耐盐抗旱鲁盐槐1号新品种推广应用”(鲁[2019]TG05号);山东省林业科技创新项目“优良乡土树种高效培育与示范”课题1“高档用材林树种楸树、槐树良种筛选与高效栽培”(2019LY001)。

摘　　要：以4个槐树品种(‘华夏’,普通槐树,‘姹紫1号’,无性系589)为试材,采用温室盆栽的方式,在不同NaCl胁迫下(0、0.2%、0.4%、0.6%)测定苗木的生长状况和生理生化变化,对4个槐树品种进行综合评价。结果表明:随着NaCl浓度的增加,槐树苗高增长量、地径增长量和生物量明显降低;抗氧化酶活性总体呈先上升后下降趋势;叶绿素含量显著下降;脯氨酸含量和相对电导率则明显上升,MDA含量呈现出先升高后降低的趋势;相关性和主成分分析发现地径增长量、脯氨酸和MDA对NaCl胁迫更为敏感;综合评价显示4个槐树品种的耐盐性由强较弱依次为:‘华夏’>无性系589>‘姹紫1号’>普通槐树,其中‘华夏’和无性系589耐盐性较强,可作为耐盐品种推广。Four Sophora japonica cultivars(’Hua Xia’,Common Sophora japonica,Chazi No.1’,clonal 589)were used as test material.The growth status and physiological and biochemical changes of seedlings under different NaCl stress(0,0.2%,0.4%,0.6%)were determined by greenhouse pot cultivation.Four Sophora japonica varieties were comprehensively evaluated.The results showed that with the increase of NaCl concentration,the height growth,ground diameter growth and biomass of Sophora japonica seedlings decreased significantly.The activity of antioxidant enzymes increased firstly and then decreased.Chlorophyll content decreased significantly.Proline content and relative conductivity increased obviously,MDA content increased first and then decreased.Correlation analysis and principal component analysis showed that ground diameter growth,proline and MDA were more sensitive to NaCl stress.The comprehensive evaluation showed that the salt tolerance of four Sophora japonica cultivars was from strong to weak in order of’Huaxia’>Clone 589>’Chazi No.1’>Common Sophora japonica,among which’Huaxia’and clone 589 had strong salt tolerance and could be promoted as salt tolerant varieties.

关 键 词：槐树 NACL胁迫 生长指标 生理特性 

分 类 号：S792.26[农业科学—林木遗传育种]