欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志

• 研究报告 • 上一篇    下一篇

不同生育期降低光强对烟草生长发育和品质的影响

杨兴有1,3;刘国顺1;伍仁军2;夏林2;邢小军4;张建慧4;杜卫民2;谢良文2   

  1. 1国家烟草栽培生理生化研究基地, 郑州 450002;2四川省烟草公司, 成都 610031;3四川省烟草公司达州市公司,四川达州 635000;4四川省烟草公司凉山州公司, 四川西昌615000
  • 收稿日期:2006-07-28 修回日期:1900-01-01 出版日期:2007-07-10 发布日期:2007-07-10

Effects of shading at different growth stages on the growth, development and quality of tobacco.

YANG Xing-you1,3; LIU Guo-shun1; WU Ren-jun2; XIA Lin2; XING Xiao-jun4; ZHANG Jian-hui4; DU Wei-min2; XIE Liang-wen2   

  1. 1National Tobacco Cultivation & Physiology Biochemistry Research Center , Zhengzhou 450002, China;2Sichuan Tobacco Corporation, Chengdu 610031, China;3Dazhou Branch of Sichuan Tobacco Corporation, Dazhou 635000, Sichuan, China;4Liangshan Branch of Sichuan Tobacco Corporation, Xichang 615000 , Sichuan, China
  • Received:2006-07-28 Revised:1900-01-01 Online:2007-07-10 Published:2007-07-10

摘要: 2004—2005年在烤烟生长发育的不同时期进行遮荫降低光照强度的盆栽试验,研究了不同生育期降低光强对烤烟生长发育和品质的影响。结果表明:遮荫条件下烟株干物质积累下降,叶片组织变薄,色素含量升高,落黄成熟时间延长;转化酶活性降低,但遮荫解除后又开始升高;叶片烤后烟叶含梗率增加,叶片厚度和比叶质量降低, 烟碱、总氮、钾和氯含量增加,总糖和还原糖含量降低,中性致香成分含量增加.不同时期遮荫的影响为成熟期>旺长期>伸根期>对照。

关键词: UV-B辐射, 青榨槭, 生理生态

Abstract: A pot experiment was conducted in 2004-2005 to investigate the effects of shading at different growth stages on the growth, development and quality of tobacco. The results showed that under shading, the dry matter accumulation of tobacco plant reduced, leaf blade became thinner, pigment content increased, and maturing time prolonged. The invertase activity decreased under shading, but increased after the shading removed. For flue-cured tobacco leaf, shading reduced its thickness and specific mass, increased its leaf stem and the contents of nicotine and total nitrogen and potassium, decreased its total sugar and reducing sugar contents, and increased its aromatic components. The effects of shading were decreased in the order of maturing stage>vigorous growth stage>root elongation stage.

Key words: UV-B radiation, Acer davidii, Physiological response