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Desenvolvimento dos frutos de lulo (Solanum quitoense LAM), em Viçosa-MG Lulo (Solanum quitoense LAM) fruits development in Viçosa - MG

Authors: Pedro Henrique Monteiro Matarazzo; Dalmo Lopes de Siqueira; Luiz Carlos Chamhum Salomao; Danielle Fabíola Pereira da Silva; Paulo Roberto Cecon;

Desenvolvimento dos frutos de lulo (Solanum quitoense LAM), em Viçosa-MG Lulo (Solanum quitoense LAM) fruits development in Viçosa - MG

Abstract

O lulo é um fruto tropical e exótico, originário dos Andes, tem cor laranja quando maduro, e é uma baga globosa, assemelha- se a um tomate, o epicarpo é grosso e coriáceo, sua polpa é verde-clara, pegajosa, ácida e suculenta, contendo muitas sementes. Objetivou-se acompanhar as características físicas, químicas e fisiológicas ocorridas durante o desenvolvimento do fruto de lulo, da antese ao amadurecimento completo, em Viçosa-MG. Os frutos apresentaram um padrão de crescimento sigmoidal simples em resposta à variação do tempo. O desenvolvimento do fruto foi dividido em três fases. A primeira foi até os 7,39 dias após a antese (DAA), sendo caracterizada pela alta taxa respiratória, provavelmente devido à intensa multiplicação celular, e o pericarpo apresentava coloração verde-clara. A segunda fase estendeu-se a partir dos 7,39 até os 57,63 DAA, sendo caracterizada pelas taxas máximas das características estudadas. A taxa respiratória cresceu até 45 DAA, mantendo-se estável até os 52 DAA. A última fase estendeu-se a partir dos 57,63 DAA até os 95,00 DAA. Essa fase foi caracterizada pela estabilização nas dimensões e no acúmulo de massa fresca. Nesse período, ocorreu a ascensão climatérica (dos 52 aos 59 DAA). O climatério respiratório ocorreu aos 66 DAA, com pico de produção de CO2 de 110,99 mg de CO2 kg-1h-1. O pós-climatério ocorreu dos 73 aos 95 DAA, quando houve aumento no teor de sólidos solúveis e queda da acidez titulável e vitamina C da polpa. Nessa fase, o pericarpo dos frutos apresentava-se com coloração alaranjada.The lulo is a tropical and exotic fruit, originating in the Andes is orange when ripe, and is a globose berry, resembling a tomato, the epicarp is thick and leathery, its pulp is light green, sticky, sour and juicy, containing many seeds. The objective of this study was to monitor the physical, chemical and physiological characteristic changes occurring during lulo fruit development, from anthesis to the full plant maturation. The fruits were harvested in the orchard of the Federal University of Viçosa and the analysis performed in the Laboratory of Fruits Analysis, from the Plant Science Department. The reproductive cycle of lulo lasted 95 days. Fruits development was divided into three phases. The first phase was up to 7.39 days after anthesis (DAA), being characterized by high respiratory rates, probably due to the intense cell multiplication and the pericarp showed light green color. The second phase occurred from 7.39 DAA to 57,63 DAA, being characterized by maximum rates of increase in dimensions of the fresh and dry fruit, the pericarp developed an intense green color and respiratory rates increased until 45 DAA and remained stable until 52 DAA. The third and final development phase occurred from 57.63 DAA to 95.00 DAA, the last day of evaluations. This phase was characterized by dimensions stabilization and accumulation of fresh mass. In this period, the climacteric rise (from 52 to 59 DAA) occurred. The respiratory climacteric occurred at 66 DAA, with peak production of CO2 of 110,99 mg CO2 kg-1 h-1. The post-climacteric was between 73 and 95 DAA, when soluble solids increased and acidity and vitamin C from the pulp decreased. At this stage, the pericarp of the fruits showed orange coloration.

Keywords

fruto exótico, exotic fruit, análise de crescimento, growth analysis, point of harvest, Plant culture, ponto de colheita, SB1-1110

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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