ROOTING OF MINICUTTINGS OF Castanea sativa Mill. HYBRID CLONES

Ângelo   Kidelman Dantas; Juan   Majada; Fernando   Kidelmar Dantas; Carolina   Delatorre; Victor   Granda; Paula   Vallejo; Isabel   Feito

ROOTING OF MINICUTTINGS OF Castanea sativa Mill. HYBRID CLONES

Autores

Ângelo Kidelman Dantas

Juan Majada

Fernando Kidelmar Dantas

Editor

Universidade Federal de Viçosa

Descripción

The objective of this study was to evaluate the effect of the growth regulator indole butyric acid (IBA) on the rooting of mini-cuttings of Castanea crenata x C. sativa hybrid clones. Minicuttings were left to root for 60 days in an acclimatized greenhouse and then transferred to a shade house for a further 30 days. The experiment was a random block design with a double factorial arrangement consisting of five IBA concentrations (0, 2,500, 5,000, 7,500 and 10,000 mg L-1) and five clones, with three repetitions, composed of eight minicuttings per repetition. The use of IBA significantly affected the rooting and survival of the mini-cuttings, and good rates were achieved. However, at each IBA concentration we found significant differences between clones, thus suggesting that the conditions of the process of mini-cutting propagation should be specifically adapted to each particular clone.