Manejo da floração visando o escalonamento da produção do abacaxizeiro no Cerrado Mato-Grossense

Abstract

The harvest desuniforme and seasonality of production are the main challenges of Brazilian abacaxicultura The search of solutions to these barriers necessarily studies that address studies on the cycle, the floral differentiation, induction of the flowering, scheduling of planting and seasonality of production, as well as techniques of control of the natural flowering. THE objective of this work was initially determine the behavior phenological of pineapple in the light of the time of planting of seedlings and plant age on induction floral and, in line with these results, to evaluate the diquat and urea as growth regulators in controlling flowering natural. In the first experiment, the results indicated that induction floral carried out in the months of May and July, period of the year of low temperature and precipitation, prompted the lengthening the plant cycle, in addition to lower weight of fruit and length of the sheet "D". The induções held in September and November have led to the harvest seasons favorable prices, independent of the month of planting. In the second experiment, the results showed that the diquat, in the concentration of 30 mg L-1 delays satisfactorily flowering, but produces fruits with smaller mass. THE urea potentiated the action of diquat in stalling of flowering.