Crescimento vegetativo e anatomia caulinar de cafeeiros enxertados

Abstract

Aiming to get informations on the development and anatomical characteristics of coffee cuttings (Coffea arabica L.) grafted in Apoatã IAC 2258 (Coffea canephora) rootstocks, the experiments were carried out between october 2003and may 2005. The experiment was randomized complete block design, whit four replications and time split-plot arrangement. Were utilized seven C. arabica cultivars, three kinds of seedlings (grafted, self grafted and ungrafted), two Apoatã rootstocks control, ungrafted and self grafted evaluated in four period of time. The experiments were evaluated for plant height, stem diameter, leaf area, aerial parts dry matter, root system dry matter, plagiotropic shoots number and plagiotropic shoots nodes number. The results obtained let verify that grafted seedling was not superior to the ungrafted one for all the evaluated characteristics, regardless of the cultivar. Apoatâ IAC 2258 rootstock did not show higher root dry matter than grafted plant and Coffea arabica ungrafted in seedling stage, but when evaluated 16 months latter, after planting, that was in C. arabica grafted or not grafted. Anatomic caracteristics did not show signals of anatomic incompatibility between analysed cultivars and Apoatã IAC 2258 rootstock.