PRODUCTION, PHYSICAL-CHEMICAL QUALITY AND BIOATIVE COMPOUNDS OF MISTY BLUEBERRY FRUIT UNDER DIFFERENT PRUNING INTENSITIES

ABSTRACT The objective of this study was to evaluate the effect of pruning intensity on yield and quality of blueberries fruits. It was evaluated the cultivar Misty. The treatments were: absence of pruning; light pruning; regular pruning and drastic pruning. The experimental design was randomized bl...

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Veröffentlicht in:Revista Brasileira de Fruticultura 2017-01, Vol.39 (spe)
Hauptverfasser: MOURA, GISELY CORREA DE, VIZZOTTO, MARCIA, PICOLOTTO, LUCIANO, ANTUNES, LUIS EDUARDO CORRÊA
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Sprache:eng
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Zusammenfassung:ABSTRACT The objective of this study was to evaluate the effect of pruning intensity on yield and quality of blueberries fruits. It was evaluated the cultivar Misty. The treatments were: absence of pruning; light pruning; regular pruning and drastic pruning. The experimental design was randomized blocks with four replications. The variables analyzed were fruit production, fruit size, pH, total soluble solids (TSS) and total titratable acidity (TTA), and the bioactive compounds such as phenolic compounds, anthocyanins and antioxidant activity. The plants that received drastic pruning showed higher averages of production and fruit size. The highest concentrations of phytochemical compounds in blueberry fruits occurred as pruning was more drastic. The use of different intensity of pruning can modify the productive behavior and postharvest quality of fruits. RESUMO O objetivo do presente trabalho foi avaliar o efeito de intensidades de poda na produção e na qualidade dos frutos de mirtileiro. O material vegetal utilizado foi mirtileiro da cultivar Misty. O fator estudado foi poda, em diferentes intensidades: sem poda; poda leve; poda-testemunha e poda drástica. O delineamento experimental foi em blocos ao acaso, com 4 repetições. Foram avaliadas a produção total de frutos, o tamanho de frutos, as características fisico-químicas como: pH, teor de sólidos solúveis totais (SST) e acidez total titulável (ATT), os compostos bioativos como: compostos fenólicos, antocianinas totais e atividade antioxidante. As plantas que receberam poda drástica apresentaram maiores médias em produção e tamanho de frutos. As maiores concentrações de compostos fitoquímicos no mirtilo ocorreram à medida que a poda foi mais drástica. O uso de diferentes intensidades de poda pode modificar o comportamento produtivo e a qualidade pós-colheita dos frutos.
ISSN:0100-2945
1806-9967
1806-9967
DOI:10.1590/0100-29452017158