烤烟叶片宽长比相关因素研究

Study on Correlation Factors of Leaf Width-length Ratio of Flue-cured Tobacco

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。

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 environment 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.