弱光环境对烟草生长、生理特性和品质的影响  

Effect of weak light on the growth,physiology and quality of tobacco

作　　者：杨兴有[1] 崔树毅[1] 刘国顺[1] 邢小军[2] 余祥文[2] 叶协锋[1] 张建慧[2] 

机构地区：[1]河南农业大学国家烟草栽培生理生化研究基地 [2]四川省烟草公司凉山州烟草科研所,西昌615000

出　　处：《中国生态农业学报》2008年第3期635-639,共5页Chinese Journal of Eco-Agriculture

基　　金：国家烟草专卖局科研项目(110200101002)资助

摘　　要：采用盆栽试验,用遮阳网营造不同的弱光环境,研究了弱光环境对烟草生长发育、酶活性和品质的影响。结果表明:弱光使烟株生长发育减缓,生育期延长;烟株叶片硝酸还原酶(NR)活性增强,蔗糖转化酶(INV)活性减弱,过氧化物酶(POD)活性减弱,氮代谢强于碳代谢;烤后烟单叶重、叶片厚度、叶质重和叶片密度减小,含梗率增加,总氮含量增加,总糖含量减少。A pot cultivation experiment under net-shaded weak light was conducted in 2004 and 2005 to investigate the effect of weak light treatment on the growth, physiology and quality of tobacco. The results indicate that weak light decreases tobacco growth and development, prolongs growth, improves nitrate reductase activity, and decreases invertase and peroxidase activity. Nitrogen metabolism is stronger than carbon metabolism under weak light. Weak light treatment decreases weight, thickness, weight of per unit area, density and sugar content of tobacco leaf. However, it increases stem ratio and total nitrogen content.

关 键 词：弱光 烟草 生长发育 酶活性 烟叶品质 

分 类 号：S314[农业科学—作物栽培与耕作技术]