Effects of different flower forcing methods on flowering and fruit quality of pineapple'Tainong 16'
Flower forcing is one of the key practices for large-scale and standardized pineapple production.In order to understand the effects of different flower forcing methods on the growth and fruit quality of pineapple,pineapple cultivar'Tainong 16'was forced to flower by using eight flower forcing methods,and its flowering rate,morphology and fruit quality were determined and analyzed by using correlation analysis.The results showed that the pineapple treated with ethephon at different concentrations was forced to flower at a rate of more than 97％.Under the ethephon treatment in combination of uniconazole or paclobutrazol the plant height decreased,the leaf length and the number of slips increased.Under the ethephon treatment the fruit weight was higher,and the crown was longer,but the peduncle was smaller and easy to break.Fruit quality test showed that the pineapple in the ethephon treatment had higher contents of soluble sugar,soluble solid and vitamin C,and a lower content of total acid.Correlation analysis of 17 characteristics showed the sucker length and the peduncle thickness were highly correlated with yield index,such as fruit weight and longitudinal diameter,whereas the number of slips and the high water content of fruit affected the accumulation of fruit weight and soluble solid.On the whole,ethephon treatment increased the flowering rate,and improved the fruit shape and quality,and can hence be used to promote the production of pineapple'Tainong 16'in the Pearl River Delta region.
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NSTL
万方数据
