中国烟草科学2017，Vol.38Issue(5)：62-68,7.DOI:10.13496/j.issn.1007-5119.2017.05.011
高温热害气象指标对成熟期烟叶的影响评估
Assessment on Meteorological Indexes of High Temperature Damage to Tobacco Leaves at Maturity Stage
摘要
Abstract
In order to investigate the main meteorological factors of high temperature damage to tobacco leaves and detemine the degree of occurrence of high temperature damage to tobacco leaves, the relationship between the meteorological indexes and the quality of high temperature damage to tobacco leaves from mid-June to early July in Fuzhou, Jiangxi Province during 2014-2016, were analyzed by using the principal component regression analysis. The assessment grade model of high temperature damage to tobacco leaves was established and verified by the component regression analysis testing. The results showed that the main impact meteorological factors were the maximum temperature, the increasing extent of temperature during heat damage, the solar radiation, and the duration of high temperature. The three grades of evaluation index system for high temperature damage tobacco leaf: 0.75≤DHI<0.97, grade 1, mild heat damage; 0.97≤DHI<1.13, grade 2, moderate heat damage; DHI≥1.13, Grades 3, severe heat damage. The model evaluation results had a negative correlation with the score of tobacco leaves quality, and the correlation coefficient was -0.93, which passed the significant test at 1% level. The accuracy achieved up to 83.3%. The results can provide scientific basis for monitoring, warning and risk assessment of high temperature damage to tobacco leaves.关键词
烤烟/高温热害/气象因子/等级评估/主成分回归Key words
flue-cured tobacco/high temperature damage/meteorological factor/assessment grade/principal component regression分类
农业科技引用本文复制引用
赵东杰,赵喆,毛亚博,赵铭钦,秦言敏,万应发,周国旺,张蕊..高温热害气象指标对成熟期烟叶的影响评估[J].中国烟草科学,2017,38(5):62-68,7.基金项目
中国烟草总公司江西省公司项目"烤烟'高温逼熟'形成机制及代谢调控技术研究"(201401006) （201401006）
