Crescimento de cafeeiros enxertados cultivados em solução nutritiva

Abstract

The use of grafting in coffee, in addition to greater tolerance for nematodes, have shown influence on the growth of coffee. The purpose of this study was to evaluate the growth of different varieties of Coffea arabica grafted into Apoatã IAC 2258 (Coffea canephora). The experiment was installed in a greenhouse, using the method of cultivation in nutrient solution. It used a factorial 7 x 3, seven cultivars of C. arabica L. (Palma II, Catucaí 2SL, Oeiras MG 6851, Obatã IAC 1669-20, Acauã, Topázio MG 1190 and Paraíso MG H 419-1), three types of seedlings (coffee cultivars grafted on ‘Apoatã IAC 2258’, self grafted, meaning a cultivar was grafted on a rootstock of the same cultivar and no grafting) and more two additional treatments (Apoatã self grafted and Apoatã no grafting). The technique of grafting did not disadvantage the development of seedling trees. Cultivars Acauã, Paraíso MG H 419-1 and Catucaí 2SL had better perform when grafted. The development of the root system of the plants self-grafted and non-grafted seedlings was better then grafted seedlings. Cultivars Palma II, Obatã IAC 1669-20 and Oeiras MG 6851have potential to promote the root system development similar to Apoatã self-grafted seedlings.