Effect of Sprouting Inhibition of Organic Suckercides on Flue-cured Tobacco
[Objective]To develop environment-friendly chemical bud inhibitors.[Method] using a treatment of toping without sucker removing as negative control, a treatment of suckercide (Flumetralin) as positive control, control effects of organic suckercides on flue-cured tobacco were conducted.[Result]Compared to negative and positive controls, organic suckercide could significantly expand the tobacco leaf area at the top of the first and second pieces of tobacco.The first leaf area on the top increased by 432.27 cm2 , and the second one increased by 214.87 cm2.Inhibiting effects of tobacco axillary buds were remarkable which was belong to organic suckercides.It was better than conventional suckercides to last longer.The 21 days after spraying, organic suckercide sprout inhibition rate of 72.56%, was higher 3.39 percentage points than conventional sucker controlling agent , and the net inhibiting effects of tobacco axillary buds were slightly better in conventional sprout inhibition,88.33%, than the conventional higher 0.18 percentage points.Organic suckercides could optimize tobacco composition and improve smoking quality.Compared to conventional sucker controlling agent, its total sugar reached 27.81%, increased by 0.61 percentage points, reducing sugar reached 24.43%, an increase of 1.30 percentage points, total nitrogen reached 1.85%, reduced by 0.07 percentage points, nicotine reduced to 2.41%, 0.34 percentage points lower, K reached 2.57%, increased by 0.35 percentage points, Cl was 0.27%, 0.01 percent point reduction.By the way, it could improve flue-cured tobacco aroma quality and aroma volume,reduce the miscellaneous gas and irritation, enhance the penetration, soft fineness, sweetness and remaining taste.Using organic suckercides for sucker control could improve flue-cured tobacco assessment ceiling of quality.[Conclusion]The organic suckercide made from vegetable oil, alcohol and tobacco tar could provide the basis for the production and development of environmental-friendly bud suppression.