Quality peach produced in fertilizer doses of nitrogen and green pruning

Marcos Antonio Dolinski,Louise Larissa May De Mio,Francine Lorena Cuquel,Antonio Carlos Vargas Motta,Jessica Welinski De Oliveira Dangelo

doi:10.1590/1678-4499.2016307

Marcos Antonio Dolinski, Louise Larissa May De Mio + Show 3 more

Open Access

https://doi.org/10.1590/1678-4499.2016307

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Journal: Bragantia	Publication Date: Dec 18, 2017
Citations: 6	License type: cc-by

Affiliation: Federal University of Paraná

Abstract

ABSTRACT The increasing consumer demand for fruit quality justifies the development of researches that combine orchards management and consumers’ perception of the quality of the product. The aim of this study was to evaluate the effect of nitrogen fertilization combined with green pruning intensity on fruit quality of ‘Chimarrita’ from high density peach trees during three consecutive harvest seasons. For this purpose, urea composed of different nitrogen rates (0, 40, 80, 120, 160, 200 and 240 kg.ha-1.year-1) was applied, under two intensities of green pruning (annual – once per season; or continuous – four times per season) in a factorial scheme (7 × 2). Fruits have been subjected to physical, chemical and sensorial analysis, made by 60 non-trained evaluators in each of the harvest seasons. The results showed that the cumulative effect of applying N in the third harvest season improved SS attributes, SS/TA ratio and fruit skin color to the dose of N of 148 kg.ha-1 .year-1. There is no difference between green pruning intensity and peach fruit quality.

Highlights

MATERIALS AND METHODSNitrogen (N) is the nutrient required and exported in greater quantities by the peach tree
This study aimed to evaluate the effect of nitrogen fertilization and green pruning intensity on the quality of high density ‘Chimarrita’ peach fruits, in the course of three consecutive harvest seasons
In the first two crop seasons, soluble solids (SS), titratable acidity (TA) and SS/TA ratio did not differ between nitrogen fertilization doses (Table 1)

Summary

Introduction

MATERIALS AND METHODSNitrogen (N) is the nutrient required and exported in greater quantities by the peach tree. This study aimed to evaluate the effect of nitrogen fertilization and green pruning intensity on the quality of high density ‘Chimarrita’ peach fruits, in the course of three consecutive harvest seasons. Chemical and sensorial characteristics, no interaction was observed between the nitrogen fertilization levels and pruning intensities.

Objectives

Results

Conclusion