云南农业大学学报2011，Vol.26Issue(z2)：14-20,7.DOI:10.3969/j.issn.1004-390X(n).2011.z2.003
不同光照强度对烤烟生长及品质的影响
Effect of Different Light Intensity on Growth and Quality of Flue-cured Tobacco
摘要
Abstract
In order to find out influence law of light intensity to flue-cured tobacco, and provide certain theoretical basis for adaptability analysis and planting districts, taken Yunyan 87 as test material to conducted field experiment which treatments were light transmittance of 24. 4% , 57. 6% , 73. 2% and 100%(CK) to study effects of light intensity on growth period, agronomic characters, leaf tissue struc-ture, yield, quality and chemical composition. The results showed: (1) Growth progress was delayed with light inadequate, field growth period of each treatments were deferred 10, 8and 5 d separately. Weak light promoted plant height to grow, while restrained increase of leaf number of flue-cured tobacco, promoted longitudinal growth of leaf, while restrained horizontal growth, moderate shading promoted increase of leaf area, while node length increased as light weakened. (2) Illumination weakened as shading extent increased, upper epidermis thickness of leaf, palisade tissue thickness and sponge tissue thickness presented decreasing trend, the thickest was CK, being 108. 64(xm, the thinnest was the treatment which light transmittance was 24. 4% , being 50. 40μm. (3) Yield, production value, average price, high and middle class leaf proportion decreased strikingly as shading extent deepened. Yield reduced respectively by 496. 5, 739. 5and 1 096. 5 kg/hm , production value respectively reduced by 23 087. 3 , 3 2174. 6 and 39 265. 4 yuan, average price respectively reduced 5. 0, 7. 3and 8. 9 yuan, high and middle class leaf proportion respectively reduced 17. 1% , 47. 2% and 80. 8%. (4) content of total sugar, reducing sugar, polyphenolic compounds were decreased as light intensity weakened, while content of total nitrogen, nicotine, potassium, chlorine and carotenoid displayed increased trend.关键词
光照强度/烤烟/叶片厚度/化学成分Key words
illumination intensity/flue-cured tobacco/leaf thickness/chemical composition分类
农业科技引用本文复制引用
王峥嵘,杨焕文,魏建荣,周兴华,赵勇,周适荔,段树苍,尹剑藤,胡小曼,李佛琳..不同光照强度对烤烟生长及品质的影响[J].云南农业大学学报,2011,26(z2):14-20,7.基金项目
中国烟草总公司重大科技专项(110200902034) （110200902034）
云南省烟草公司科技项目(09YN022) （09YN022）
云南省应用基础研究项目(2008ZC051 M):云南省科技厅人才项目(2010CI030). （2008ZC051 M）
