ROOTING OF MINICUTTINGS OF Castanea sativa Mill. HYBRID CLONES

• Autor(a) principal: Dantas,Ângelo Kidelman
• Data de Publicação: 2016
• Outros Autores: Majada,Juan, Dantas,Fernando Kidelmar, Delatorre,Carolina, Granda,Victor, Vallejo,Paula, Feito,Isabel
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Árvore (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622016000300465
• topic: IBA; Vegetative propagation; Chestnut.

ABSTRACT 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.