ISHS Acta Horticulturae 425: II International Pineapple Symposium
FLOWERING INHIBITION IN PINEAPPLE WITH DIFFERENT RATES OF FUITONE CPA ON TWO PLANTING DENSITIES |
| Authors: | A. Rebolledo-Martínez, D. Aguirre-Gutiérrez |
| Keywords: | Ananas comosus, flowering, inhibition, forcing production |
| Abstract:
In Mexico, due to some climate conditions, about 20% of the pineapple harvest originates from natural flowering, causing excess of fruit in June and July and scarcity in August and September. For this reason, the objective of this study was to inhibit those plants from flowering in order to have a steady production throughout the year. Since 1992, in three experiments, rates and numbers of aplications of 2-(3-chlorophenoxy) propionic acid (Fruitone CPA) were evaluated, from 30 to 180 mg.L-1 on 33 000 and 46 000 plants per hectare. The applications began in October, when the plants weighed 1.6 Kg, spraying 50 ml per plant. The natural flowering's harvest began on June 24 and finished on July 14; the inhibited plants were forced by the end of March and harvested in September. With 100 mg.L-1 of Fruitone CPA, split in three applications every 15 days, the flowering was inhibited at 76 and 82% in 33 000 and 46 000 plants per hectare, respectively, while the control had 95% of natural flowering in the low density and 82% in the other one. | |
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