科研之友
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摘要
Objetivou-se avaliar o enraizamento de diferentes tipos de estacas herb芍ceas (com uma folha, com a folha cortada ao meio e sem folha) dos porta-enxertos de videira: IAC 572 ＆Jales＊ e IAC 766 ＆Campinas＊, no substrato de casca de arroz carbonizada, em camara de nebuliza o. O delineamento experimental empregado foi o inteiramente casualizado, com cinco repeti es em arranjo fatorial 3x2, sendo cada parcela composta por 10 estacas. Ap車s vinte e oito dias da estaquia, p de-se concluir que: a) o porta-enxerto ＆Campinas＊ 谷 superior ao ＆Jales＊ em rela o 角 porcentagem de estacas enraizadas, quando propagado por estacas herb芍ceas com folha; b) para os dois porta-enxertos, estacas herb芍ceas com folha e com folha cortada ao meio s o as mais recomendadas para a propaga o em camara de nebuliza o; c) a manuten o de folhas durante a multiplica o de estacas herb芍ceas desses porta-enxertos 谷 fundamental para a forma o de ra赤zes advent赤cias. The aim of this work was to evaluate rooting of different cutting kinds (with one leaf, with a leaf cut in a half and without any leaf) in two vine rootstocks IAC 572 ＆Jales＊ and IAC 766 ＆Campinas＊ in carbonized rice hull substrate, in a nebulization chamber. The experimental design used was entirely randomized, with five replications in a 3x2 factorial arrangement, each parcel containing 10cuttings. Twenty eight days after staking, the results showed that: a) rootstock ＆Campinas＊ is superior to ＆Jales＊ in relation to rooting percentage when propagated by herbaceous cuttings with one leaf; b) herbaceous cuttings with one leaf and with one leaf cut in a half are the most recommendable for both rootstocks, for propagation under nebulization; c) the maintenance of leaves during the multiplication of these rootstocks herbaceous cuttings is fundamental for the development of adventitious roots.
