白肋烟烟碱含量的机械调控技术

Effect of Root Cutting on Nicotine Content of Burley Tobacco

研究了打顶后 5d机械切根 1/ 8、1/ 4对白肋烟烟碱合成、烟叶产量和产值的影响 ,结果表明 :机械切根能明显降低烟碱含量 ,其中切根 1/ 8与对照相比 ,上部叶烟碱下降 1.9个百分点 ,降幅31.33% ;中部叶烟碱下降 2 .13个百分点 ,降幅 5 1.4 5 %。切根处理对烟叶产值。

The effect of cutting 1/4 or 1/8 of root system at first 5 days after topping on nicotine accumulation, yield and output value of burley tobacco was studied. The results showed that nicotine content of burley tobacco was greatly decreased by root cutting, the reduction of nicotine content in upper and cutter leaves treated with cutting 1/8 of root system was reduced by 1.9 and 2.13 percentage points, respectively, in comparison with the control. No obvious negative effect of root\|cutting on yield and output value of tobacco leaves was observed.