摘要
对2012—2016年不同品种、不同生长阶段、不同生长环境下生长的烤烟叶片宽长比连续观察、测量和分析,研究影响烤烟叶片宽长比的因素。结果表明,烤烟叶片宽长比不仅受遗传影响,不同品种有所差异,且同一品种叶片因生长环境和生理进程而发生变化。土壤、施肥、密度、植物激素、打顶时间和留叶数量,以及温度、光照、雨水、风力等气候因素均对烤烟叶片宽长比产生不同程度的影响。叶片宽长比变化是由于叶片组织结构、水分、养分等因素变化所致。该研究明确了影响烤烟叶片宽长比的相关因素,为烤烟生产提供理论依据。
Abstract
Continuous observation,measurement and analysis of leaf width -length ratio of flue -cured tobacco in different varieties,different growth stages and different growing environments were conducted,influencing factors were studied.The width-length ratio of flue-cured tobacco leaves were not only influenced by heredity,and the different varieties were different,leaves of the same varieties changed due to the growth envi-ronment and physiological processes.Soil,fertilizer,density,plant hormones,topping time and leaf number,temperature,light,rain,wind and other climatic factors had different effects on width-length ratio of flue -cured tobacco leaves.The change of leaf width -length ratio is due to the variation of leaf tissue structure,water,nutrient and other factors.The aim was to determine correlation factors influencing flue-cured tobacco leaf width-length ratio,to provide theoretical basis for flue-cured tobacco production.