论文光照强度对白肋烟光合特性中性致香成分影响是适合光照强度论文写作的大学硕士及相关本科毕业论文，相关光照强度单位换算开题报告范文和学术职称论文参考文献下载。
摘 要：以鄂烟6号为供试材料,在团棵期至成熟期通过人工遮阴,设置3种透光率水平（100%、80%、60%）,探讨了不同光照强度对白肋烟光合特性和中性致香成分等理化性状的影响.结果表明,透光率80%处理小区的烟叶单位面积叶源量明显高于对照100%自然光照和60%透光率处理.在遮阴前期,光照强度起主要控制作用,遮阴处理的净光合速率较小（100% > 80% > 60%）；而遮阴后期,遮阴处理小区环境温度较低,空气湿度和空气中CO2浓度相对较高,叶片蒸腾速率和气孔导度增加,净光合速率高于对照100%自然光照（100% < 80% < 60%）,胞间CO2浓度降低.烟株对光照变化的适应性较强,长期遮阴能激发其对弱光的吸收和转化效率,透光率80%的中性致香成分、感官质量、非特异性过氧化物酶与超氧化物歧化酶活性整体均优于100%自然光照.但100%自然光强更能提高烟叶中水溶性糖含量,促进烟叶对水溶性氯、钾成分的吸收.总的来看,80%的光照条件下的烟叶品质更好,能满足工业企业的配方要求.
关键词：白肋烟；光照强度；光合特性；叶源量；中性致香成分；酶活性
中图分类号：S572.01 文章编号：1007-5119（2014）04-0058-06 DOI：10.13496/j.issn.1007-5119.2014.04.011
Effects of Light Intensity on Photosynthetic Characteristics and Neutral Aroma Constituents of Burley Tobacco
NI Guoshi1, ZUO Mei1, WANG Rui1, WU Wenhao1, XIANG Bikun1, XU Zicheng2*
（1 Enshi Tobacco Company of Hubei Province, Enshi, Hubei 445000, China；
2. Tobacco College of Henan Agricultural University, Zhengzhou 450002, China）
Abstract： To identify the effects of light intensity on photosynthesis of burley tobacco leaves during field stages, and explore the distribution differences of main neutral aroma constituents in cured burley tobacco leaves of different light intensities treatment, artificial shade experiment with 3 light transmittance level （100%, 80%, 60%） from rosette stage to maturation stage was carried out by using Eyan 6 as test material. The results indicated that leaf source capacity per unit area of 80% transmittance level was higher than the other two levels. In the early stage of the shade, light intensity was the major controlling factor, net photosynthetic rate under shading treatment were lower than that under full sunlight （100%>80%>60%）； In the later period, environment temperature under shading treatment was lower, air humidity and CO2 concentration was relatively high in the air, and stomatal conductance and transpiration rate increased, and net photosynthetic rate was higher than CK（100% transmittance level）, but the intercellular CO2 concentration decreased. Tobacco leaves had a strong adaptability to light, and long-term shade could stimulate its absorption and conversion efficiency of weak light. Neutral aroma constituents, sense quality, activities of peroxidase and superoxide dismutase were better than those of 100% full natural light as a whole. But 100% natural light intensity was more advantageous to the increasing of content of soluble sugar, and absorption of water-soluble chloride and potassium in burley tobacco leaves. Through comprehensive analysis, tobacco leaves in 80% transmittance level have better quality and meet the formula requirements of the industrial enterprises.
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参考文献：
1、 钾对厚皮甜瓜生长发育光合特性影响 摘 要 以‘翠甜’厚皮甜瓜为试材，采用盆栽砂培试验，设6个钾水平，即K1～K6（0、3、6、9、12、15 mmol L），研究其对厚皮甜瓜生长。
2、 不同变黄条件对烤烟上部叶中性致香成分和感官质量影响 摘 要：采用热风循环标准烤房对烟叶进行烘烤，设置不同变黄时间和定色时间，研究烘烤过程中不同变黄条件对中性致香成分含量和感官质量的影响。结果表明：。
3、 不同遮荫处理对林下半夏生长光合特性影响 摘要：通过选择3种不同郁闭度的林地，构造3种不同的遮荫处理，研究其对林下半夏生长及光合特性的影响。结果表明：同一生育时期的半夏在林木株行距为1 。
4、 金银花新品种华金2号光合特性 摘要：为了解金银花新品种华金2号的光合特性，以传统农家品种鸡爪花为对照，采用LI-6400XT便携式光合仪，测定二者的光合参数。结果表明：华金2。
5、 自制光照强度检测仪 一、 研究背景眼睛是心灵的窗户，也是我们人类身体中重要的器官。眼睛能让我们不断发现新事物，帮助我们探索世界，所以我们更要保护好自己的眼睛。通。
6、 不同栽培方式对白肋烟烟碱转化率TSNA含量影响 摘要：为探索不同栽培方式对白肋烟烟碱转化率及烟草特有亚硝胺（TSNA）含量的影响，采取裂区试验，以不同烟碱转化率类型的品系为主处理，不同种植规格。