EVALUATION OF ROOTSTOCKS FOR ‘TAHITI’ ACID LIME IN NORTHERN STATE OF MINAS GERAIS

Daniel Lucas Magalhães Machado,Paulo Roberto Cecon,Danielle Fabíola Pereira Da Silva,Luiz Carlos Chamhum Salomão,Dalmo Lopes De Siqueira

doi:10.1590/0100-29452017790

Abstract

ABSTRACT The aim of this study was to evaluate 12 rootstock varieties on the development and quality of ‘Tahiti’ acid lime fruits cultivated in the municipality of Jaíba, MG. Seedlings were planted in an experimental orchard in November 2008, using 8 x 5 meters spacing and drip irrigation. The experiment was conducted using a scion cultivar (Tahiti acid lime, IAC-5 cultivar) and the following 12 rootstocks: ‘Rangpur’ lime, ‘Troyer’ citrange, ‘Carrizo’ citrange, 1707 hybrid (Rangpur lime x Swingle trifoliate), 1710 and 1697 citrandarins, 1708citradia, ‘Swingle’ citrumelo, ‘Cleopatra’ and ‘Sunki’ mandarins, ‘Volkamer’ lemon, and ‘Limeira’ trifoliate. A randomized block design with five replicates and three trees per plot was used. Trunk diameter of both rootstock and scion, as well as height, diameter, and canopy volume, yield, fruit mass, number of fruits per tree, productivity, production efficiency index, longitudinal diameter, equatorial diameter, total soluble solids, total acidity, and vitamin C content of fruits were evaluated. ‘Volkameriano’ and ‘Cleopatra’ rootstocks promoted higher plant vigor and productivity for ‘Tahiti’ acid lime. However, ‘Limeira’ trifoliate and ‘Troyer’ citrange produced less vigor, but increased production efficiency; and can be used as alternative rootstocks for ‘Rangpur’ lime, as long as adjustments are performed in the planting spacing to increase productivity. In general, no differences in physical and chemical characteristics of fruits for all treatments were found, and fruits remained within commercial standards.

Highlights

The experimental orchard was planted in November 2008 in the Irrigation District of Mocambinho, municipality of Jaíba, Experimental Farm of Mocambinho, Technological Center of Northern Minas Gerais / EPAMIG
Twelve treatments and five replicates were used, each experimental unit consisting of three useful plants, comprising 60 experimental units, with a total of 180 useful plants
Plants were arranged in 8m x 5m spacing and irrigated by the drip system

Summary

Introduction

From 2011, it was observed that rootstocks induced significant differences for these characteristics, with emphasis on ‘Rangpur’ lime and ‘Volkameriano’ lemon, which induced higher values, as well as an increase in diameter of the graft stem that exceeded the diameter of the rootstock stem in the last years evaluated (TABLE 1). In the DCPE / DCE ratio, there was a general trend over the years of evaluations, where plants on ‘Rangpur’ lime, ‘1707’ hybrid and ‘Carrizo’ citrange rootstocks had the lowest values.

Objectives

Results

Conclusion