COMPORTAMENTO DO CAFEEIRO APÓS APLICAÇÃO DE DOSES DE MATURADOR NA PRIMEIRA SAFRA

Abstract

Coffee (Coffea Arabica) is highly representative in Brazilian agribusiness, and Currently, the final quality of coffee fruits has been one of the major problems faced by producers and can be minimized by mechanizing crops. At successive flowering has caused great problems in fruit harvesting, however the use of Physiological maturators have minimized this damage. In addition to the function of accelerating maturation, the active ingredient of ripeners, ethylene is directly related to several actions in plant metabolism such as germination and bud growth, ripening of fruits, epinastia, flowering, seedling growth, and loss of leaves and fruits. Thus, the objective of this work is to evaluate the effects of applying different doses of the maturer Ethrel ® in Coffee arabica plants in the first harvest. The treatments were carried out in ml for each 100L of syrup resulted in T1: control with 0 ml, T2: 25 ml, T3: 50 ml, T4: 75 ml and T5: 100 ml. The parameters analyzed were production (SCs / ha), vigor, defoliation (%), number of nodes, plant height (cm) and length of branches. The results obtained were analyzed by means of analysis of variance, and, where there were significant differences, the regression model. The use of larger doses, such as 75% and 100%, caused a sharp defoliation one month after application. When analyzing the node number parameter, the dosages of 25% to 50%, provided a greater range of nodes. For strength% dosages also presented better results. Thus, it is concluded that, in dosages of 50 ml of better responses occurred when compared to the other treatments.