湘西中海拔地区湘烟7号适宜移栽期的筛选  

Screening on Suitable Transplanting Date of Xiangyan 7 in Mid-altitude Area of Xiangxi Autonomous Prefecture

作　　者：袁小康[1] 张胜 张明发 陈前锋 刘思华 YUAN Xiaokang;ZHANG Sheng;ZHANG Mingfa;Chen Qianfeng;LIU Sihua(Hunan Research Institute of Meteorological Sciences/Hunan Key Laboratory of Meteorological Disaster Prevention and Reduction,Changsha,Hunan 410118;Hunan Xiangxi Autonomous Prefecture Tobacco Company,Jishou,Hunan 416000,China)

机构地区：[1]湖南省气象科学研究所气象防灾减灾湖南省重点实验室,湖南长沙410118 [2]湖南省烟草公司湘西自治州公司,湖南吉首416000

出　　处：《贵州农业科学》2022年第3期30-37,共8页Guizhou Agricultural Sciences

基　　金：湘西州烟草公司项目“湘西州烤烟产质量提升气象关键技术及决策服务系统”。

摘　　要：【目的】确定湘西自治州中海拔地区烤烟品种湘烟7号的最佳移栽期,为烤烟生产提供重要决策依据。【方法】于2019年和2020年在湘西中海拔地区开展大田试验,设置5个移栽期处理:处理1(4月12日)、处理2(4月19日)、处理3(4月26日,当地常规期)、处理4(5月3日)和处理5(5月10日),研究移栽期对烤烟农艺性状、经济性状和化学成分的影响。【结果】4月12日移栽的烤烟株高和叶面积最大,农艺性状最佳,产量、产值、均价和上等烟比例均较大,经济性状最佳;5月10日和4月12日移栽的烤烟常规化学成分综合评价得分较高,化学性状最好。气象因子与株高、茎围、叶长、叶面积等农艺性状及均价、上等烟比例等经济性状均存在显著相关关系。【结论】湘烟7号适当提前移栽,有利于增大其株高、叶面积,提高产量和产值,改善烟叶化学性状和工业可用性。4月12日是湘西自治州中海拔地区湘烟7号的最佳移栽期。The most suitable transplanting date of Xiangyan 7,a flue-cured tobaocco,in mid-altitude area of Xiangxi Autonomous prefecture is determined,which provides basis of decision for tobacco production.【Method】In 2019 and 2020,field trials were carried out in mid elevation area of Xiangxi.Five treatments of suitable transplanting date were set,which were treatment 1(April 12),treatment 2(April 19),treatment 3(April 26,local traditional transplanting date),treatment 4(May 3)and treatment 5(May 10),to study the effect of transplanting date on the agronomic traits,economic traits and chemical components of flue-cured tobacco.【Result】The plant height and leaf area of Xiangyan 7 transplanted on April 12 were the largest,with optimum agronomic traits and economic traits,and higher ratio of yield,output value,average price as well as upper-class leaves.The comprehensive evaluation of conventional chemical components of Xiangyan 7 transplanted on April 12 and May 10 were higher,while the chemical properties were the best.Meteorological factors were significantly related to agronomic traits,including plant height,stem girth,leaf length,leaf area and other traits,and economic properties,including average price,ratio of upper-class tobacco and other properties.【Conclusion】Xiangyan 7 should be transplanted early in a suitable degree,which can promote the plant height,leaf area,improve the yield and output value,and optimize the chemical properties together with industrial availability.April 12 is the optimum transplanting date of Xiangyan 7 in mid-altitude area of Xiangxi Autonomous Prefecture.

关 键 词：湘烟7号 移栽期 化学成分 花垣 湖南 

分 类 号：S572[农业科学—烟草工业]