攀西烟区不同海拔对烤烟揭膜时间的影响研究  

Study on Effect of Different Altitudes on Dyestripping Time of Flue-cured Tobacco in Panxi Tobacco-growing Areas

作　　者：谢华英[1] XIE Hua-ying(School of Agricultural Sciences,Xichang University,Xichang,Sichuan 615013,China)

机构地区：[1]西昌学院农业科学学院,四川西昌615013

出　　处：《西昌学院学报（自然科学版）》2018年第1期5-9,72,共6页Journal of Xichang University(Natural Science Edition)

基　　金：四川省烟草公司重点项目(201301001)

摘　　要：[目的]为了探究不同海拔下烤烟的最佳揭膜时间,从而对攀西烟区不同海拔和膜时间对烤烟的影响进行研究。[方法]选取米易普威,盐边和爱,仁和平地三个示范点,每个示范点分别选择1 600 m、1 800 m和2 000 m共3个不同海拔区域作为试验点,每个海拔设置:Ⅰ.移栽后35 d揭膜上厢;Ⅱ.移栽后45 d揭膜上厢;Ⅲ.常规揭膜;Ⅳ.不揭膜,4个揭膜处理。研究了不同揭膜时间、不同海拔对烤烟的生育期、大田病害、农艺性状和生理生化指标等因素的影响。[结果]同一揭膜时间,随着海拔高度的升高生育期推迟并且叶片数和叶片长宽有减少的趋势,同一水平高度变化不明显且在今年雨量较大且持续时间较长的情况下,揭膜时间对烤烟生育进程的影响不大;病害发生率均处于较低水平,且病害发生与海拔和揭膜时间关系不明确;同一揭膜时间,随海拔的升高叶片数和叶片长宽有减少的趋势,同一海拔高度,随揭膜时间的推迟,其叶片数和叶片长宽变化不明显;[结论]1 600 m海拔下,早揭膜有利于根系形成和对环境适应性的提高,1 800 m海拔下,早揭膜有利于糖类和蛋白的合成及根系形成,2 000 m海拔下,移栽后35 d揭膜根系生长最好。In order to explore the optimal dyestripping time of flue-cured tobacco at different altitudes,the paper studies the conjunctiva of flue-cured tobacco at different altitudes in Panxi tobacco-growing areas.Three experimental sites were selected,Miyi Puwei,Yanbian Heai,and Renhe Pindi,which are 1 600 m,1 800 m,and 2 000 m high respectively,and are set as follows:.35 days after transplanting dyestripping shangxiang;Ⅱ.Dyestripping shangxiang after transplanting 45 days after transplanting;Ⅲ.Conventional dyestripping;Ⅳ.Not dyestripping,4 treatment.The flue-cured tobacco varieties were tested,and the effects of different dyestripping time and different altitudes on the growth period,field disease,agronomic characters and physiological and biochemical indexes of flue-cured tobacco were studied.The main conclusions are as follows:at the same time,with the increase of altitudes,the growth period delay and the number of leaves and the width of leaves decrease,the same level height change is not obvious and the dyestripping time has little effect on the tobacco growth period process.The disease incidence was at a low level,and the relationship between disease occurrence and altitude and dyestripping time was not clear.At the same dyestripping time,the width of number of plate and leaf decreased with the elevation,while at the same elevation,the number of leaves and the width of running time were not obvious with the change of dyestripping time.At 1 600 m above sea level,early dyestripping is conducive to the root formation and environmental adaptability.At 1 800 m,dyestripping was favorable to the synthesis of sugar and protein and root formation.At 2 000 m,root growth of dyestripping should better be 35 days after transplanting.

关 键 词：烤烟 揭膜时间 海拔高度 

分 类 号：S572[农业科学—烟草工业]