烟草抑芽剂施用方法的研究

Study on Applying Methods of Tobacco Suckering Agents

采用不同的施用方法对芽敌和芽克进行了烟草田间抑芽试验 ,结果表明 ,芽敌 5 0倍抑芽率90 .5 4 %,芽克 5 0倍抑芽率 76 .1 5 %。芽敌 5 0倍处理与手工抹芽相比 ,上部叶面积减少 1 38.94cm2 ,单叶重减少 0 .4g,总糖减少 2 .3个百分点 ,烟碱减少 0 .2 1个百分点。但改进施药技术 ,把芽敌施药浓度改为1 0 0倍 ,施药 2次 。

The field experiments on inhibiting the growth of axillary buds with different applying methods of the two chemicals, Yadi and Yake(a.i., potassium maleic hydrazidate), were conducted. The results showed that effects of sucker control with Yadi and Yake in one 50th dilution were 90.54% and 76.15%, respectively. Comparing with hand\|suckering, area of the upper leaf, weight per leaf, total sugar, and nicotine of tobacco treated with Yadi in one 50th dilution was decreased by 138.94cm\+2, 0.4g per leaf, 2.3 percentage points, and 0.21 percentage points, respectively. However, when Yadi in one 100th dilution was applied for 2 times, the area of leaf and weight per leaf of flue\|cured tobacco were obviously increased.