Abstract:

The aims were to improve the fruit set percentage and study the change of fruiting characteristics and fruit contents of Areca. The experiments were made to spray Areca during the flowering stage with three hormones(IBA、GA3 and yunda-120) of different concentrations. The results showed that the fruiting numbers and fruit set percentage were obviously improved, and augmented the fruit shape index. There existed the obvious difference with hormones of different concentrations. The effects were distinctly increased, such as the fruiting numbers with 50 mg/L GA3 treatment, the fruit set percentage with 100mg/L IBA treatment and the fruit shape index with 400 mg/L IBA treatment. The contents of the soluble sugars and proteins and celluloses of fruits were improved with hormones, but there was little effect on the contents of starches. Yunda-120, GA3 and IBA respectively had obvious effects on the contents of proteins, soluble sugars and celluloses of fruits. The conclusions were made that hormones of promoting growth could improve the fruit set percentage and change the accumulation of content, but there was some difference with different hormones.