【摘要】 [目的]探明贵州省黄平县生态区优质烤烟的最佳移栽时期。[方法]分别考察5个移栽期处理的烤烟在团棵期、现蕾期的农艺性状,以及不同移栽期处理对烤烟自然抗病性和主要经济性状的影响。[结果]不同移栽期处理对烟株的生长动态影响各异,烤烟的生长与气温、日照时数、降雨量和栽培管理方式密切相关;不同移栽期处理的烟株对赤星病的抗性差异不显著。[结论]贵州省黄平县烤烟的适宜移栽期为4月中旬至下旬。过晚移栽则降低烟叶的产量和品质,使经济效益下降。更多还原

【Abstract】 [Objective] The optimal transplanting period of high-quality flue-cured tobacco in ecological regions of Huangping County, Guizhou Province was explored. [Method] Agricultural characters of flue-cured tobacco in rosette stage and budding stage during 5 transplanting periods were investigated, and influence of different transplanting periods on disease-resistance and major economic characters of flue-cured tobacco was also studied. [Result] Different transplanting periods influence growth conditions of flue-cured tobacco to different degrees, growth of tobacco is closely related to temperature, sunshine duration, precipitation, cultivation and management style. Different transplanting periods has slight influence on the resistance of flue-cured tobacco against tobacco brown spot. [Conclusion] The optimal transplanting period of flue- cured tobacco in Huangping County lasts from middle to late April. Flue-cured tobacco should not be transplanted too late because yield and quality of tobacco leaf will decline, and economic benefits will degrade.更多还原