盐碱胁迫对烤烟主要生理生化指标的影响  

Effects of Mixed Salt-alkaline Stress on Flue-cured Tobacco Physiological and Biochemical Index

作　　者：王美佳[1] 南力[1] 董丽丽[1] 李虎林[1] 

机构地区：[1]延边大学农学院,吉林延吉133000

出　　处：《安徽农业科学》2014年第30期10448-10451,共4页Journal of Anhui Agricultural Sciences

基　　金：吉林省烟草总公司科技创新项目(合同编号:JLYC-KJ-2009-7)

摘　　要：[目的]为了探究盐碱胁迫下不同浓度对烤烟生理生化指标的影响。[方法]以2个烤烟品种吉烟9号、吉烟10号为材料,进行盆栽试验。[结果]随着盐碱处理浓度的逐渐增加,烟叶的叶绿素含量逐渐降低;超氧化物歧化酶、过氧化物酶、过氧化氢酶活性都呈先升高后下降的趋势;而丙二醛含量则逐渐升高,脯氨酸与可溶性糖含量呈先升高后下降的趋势;K+的含量呈下降趋势,Na+的含量大幅度增加。[结论]烤烟抗逆指标对盐碱胁迫非常敏感。[ Objective ] The research aimed to study the effects of mixed salt-alkaline stress on flue-cured tobacco physiological and biochemical index. [ Method] Using 2 kinds of flue-cared tobacco varieties Jiyan 9 and Jiyan 10, pot experiment was carried out. [ Result] With the increase of concentration of mixed salt-alkaline solution, the chlorophyll content of tobacco decreased. The activity of SOD, POD and CAT increased firstly and then declined under mixed salt-alkaline stress. The content of MDA increased. The content of Pro and soluble sugar increased firstly and then declined. The content of K~ decreased, and the content of Na^＋ increased significantly. [ Conclusion] Resisting index of flue-cured tobacco was very sensitive with salt-alkaline stress.

关 键 词：烤烟 盐碱胁迫 不同浓度 生理生化指标 变化规律 

分 类 号：S572[农业科学—烟草工业]