Effect of boron and zinc in soluble carbohidrate content, total aminoacids and rooting of plum branch cuttings (Prunus salicina Lindl.)

Abstract

The purpose of this study was to evaluate the effect of boron and zinc on the rooting of branch cuttings of two plum (Prunus salicina Lindl.) cultivare Carmesim and Grancuore. In a previous phase four lines with twenty plants were selected for the application of boron, zinc, boron + zinc and control. The study on the rooting of branch cuttings was conducted at the Brotas County, São Paulo State, in a nursery with intermitent artificial mist conditions. Materials were collected in May/89, one part used to analyse reducing sugars, total sugars and total aminoacids and another part used for rooting test of branch cuttings. The results showed that Carmesin had a higher ability for rooting and there was interaction of cultivars with products (B, Zn and B + Zn) and the zinc, boron and boron-zinc increased total aminoacids in the two cultivars.