Growth bioestimulant: evaluation of coconut under different doses of crop-set

Abstract

The objective of this study was to evaluate the effect of bio-stimulant on the vegetative and reproductive aspects of dwarf-coconut over a period of 13 months in the state of Ceará. The experiment was conducted from September 2016 to October 2017, in a commercial production area, located in the municipality of Itarema, state of Ceará, using four-year-old plants, in a triangular spacing of 8 x 8 x 8 m in blocks at random, four doses of Crop-Set bio-stimulant plus control (0; 4; 8; 12 and 16 mL plant^-1) with four replications. The Crop-Set bio-stimulant was applied through leaves with a back-pack spray, in the axilla of the ninth leaf of the coconut palm for 13 months. After its application, the number of leaves, flowers, fruits and bunches per plant was accounted. The influence of the use of bio-stimulant was observed on the number of leaves, while for the number of fruits and coconut bunches, there was no statistical significance. Only the dose of 12 mL plant^-1 differed from the control for the number of flowers. It can be concluded that Crop-Set bio-stimulant did not express solid results for the evaluated period of 13 months on the vegetative and reproductive characteristics of irrigated dwarf-coconut palms.