Qualidade dos frutos de tipos de melão,produzidos em ambiente protegido

Paduan, Micheline Tavares; Campos, Raquel Pires; Clemente, Edmar

doi:10.1590/s0100-29452007000300024

Cited by 10 publications

(8 citation statements)

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“…However, although effect of the thinning season had been verified on pH of the evaluated hybrids, the variation was small (less than 0.25), indicating a small change in the acidity of the fruits. The values detected in this experiment (6.26 to 6.50) remained in the pH range similar to those verified in melon by Paduam et al (2007) and Castoldi et al (2008).…”

Section: Resultssupporting

confidence: 90%

Influence of the main stem pruning and fruit thinning on quality of melon

et al. 2016

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RESUMO Influence of the main stem pruning and fruit thinning on quality of melon 1Among many management practices used in melon crops, those that change source: sink relationship, such as pruning and fruit thinning, directly influence production, affect fruit size and its composition, including sugar and vitamin contents. The objective of this study was to evaluate the influence of pruning of the main stem and time of fruit thinning in melon postharvest quality. Thus, two experiments were set up in Mossoró, state of Rio Grande do Norte, each with a melon hybrid (Amaregal and Banzai). Each experiment was conducted in a randomized block, in a (2 x 4) + 1 factorial design, 2 pruning management (with and without pruning), 4 levels of fruit thinning (3, 6, 9 and 12 DARB -days after removal agro textile blanket) and a control (without pruning and thinning), and four replications. Fruits were harvested at commercial maturity and transported to the Laboratory of Food Technology of UFERSA, where they were evaluated for the following characteristics: weight, diameter, length, flesh thickness, flesh firmness, soluble solids, pH, and titratable acidity, soluble solids: titratable acidity ratio and vitamin C. No interaction between factors in any of the experiments was found. Titratable acidity (0.077%) and vitamin C content (3.4 mg/100 g) in Amaregal melon and soluble solids (10.2%) in Banzai melon were lower in the treatments with stem pruning. In Amaregal melon, fruits showed longer length (134 mm) and greater flesh firmness (40 N) when thinning was carried out on 6 DARB, and as thinning was delayed, it found a decrease in the values of soluble solids, SS: TA ratio and pH. In Banzai melon, fruits showed greater flesh thickness (33.5 mm) and SS: TA (247.5) ratio when thinning was carried out on 6 DARB. However, delay in thinning promoted an increase in pH and vitamin C content of the fruits. Pruning of the main stem and thinning season had effect on the quality of Amaregal and Banzai melons in different ways.Dentre as diversas práticas culturais utilizadas no meloeiro, aquelas que alteram a relação fonte: dreno, como poda de hastes e raleio de frutos, influenciam diretamente na produção, afetam o tamanho dos frutos e sua composição, incluindo os teores de açúcares e vitaminas. Objetivou-se, com este trabalho, avaliar a influência da poda da haste principal e da época de realização do raleio de frutos na qualidade pós-colheita de melão. Para isto, dois experimentos foram implantados no município de Mossoró-RN, cada um com um híbrido (Amaregal e Banzai). Cada experimento foi conduzido em blocos ao acaso, com esquema fatorial (2 x 4) + 1, sendo 2 níveis do fator poda (sem poda e com poda), 4 níveis do fator raleio (3, 6, 9 e 12 DARM -dias após a retirada da manta agrotêxtil) e uma testemunha (sem poda e sem raleio), e quatro blocos. Os frutos foram colhidos na maturidade comercial e transportados para o Laboratório de 790 Rafaella Martins de Araújo Ferreira et al.

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Section: Resultssupporting

confidence: 90%

Influence of the main stem pruning and fruit thinning on quality of melon

et al. 2016

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“…The average pulp thickness was 3.04 cm, higher than the 1.83 cm reported by Cavalcanti et al (2015) for the Mandacaru melon plant grown in a protected environment under different irrigation levels. The thicker the pulp the better, since it indicates a larger edible portion and heavier fruit weight, thereby enhancing its quality (Paduan et al 2007).…”

Section: Resultsmentioning

confidence: 99%

Yield and quality of melon under silicon doses and irrigation management in a greenhouse

Lozano

Rezende

Hachmann

et al. 2018

Pesqui. Agropecu. Trop.

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The netted melon requires special growing conditions, including a protected environment, an adequate staking system and proper water and nutrient management. This study aimed to assess the effect of irrigation levels and silicon doses on the yield and quality of Sunrise hybrid melons, in a greenhouse. A randomized block design was used, with a 5 x 3 factorial scheme and four replications. The first factor consisted of five silicon doses (0 kg ha-1, 50 kg ha-1, 100 kg ha-1, 150 kg ha-1 and 200 kg ha-1) and the second of three irrigation levels (40 %, 70 % and 100 % of the ETc). The results demonstrated that the applied irrigation levels and silicon doses have no influence on the yield traits of melon plants. The irrigation level corresponding to 100 % of the ETc promotes higher values for soluble solids (9.86 ºBrix) and maturation index (114.9) on fruits. The increase of silicon doses up to 200 kg ha-1 also increases the maturation index in the treatment with the greatest irrigation level and reduces this index at the shallowest level applied.

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“…Por outro lado, Silva et al (2009), estudando diferentes fontes e doses de fósforo em melão orgânico, constataram que a dose de 320 kg ha -1 proporcionou valor significativamente superior comparado com o do tratamento-testemunha. Paduan et al (2007), avaliando qualidade de frutos de diferentes tipos de melão em ambientes protegidos, obteve valores de Brix acima de 12% para o Net Melon, semelhante aos valores encontrados neste estudo. Segundo GORGATTI NETO et al (1994) os frutos com Brix inferior a 9% não são comercializáveis; de 9% a 12% são comercializáveis, sendo que frutos com valor acima de 12% são considerados melões extras.…”

Section: Resultsunclassified

Adubação fosfatada no meloeiro-amarelo: reflexos na produção e qualidade dos frutos

2011

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Eng. Agron., MS., Doutorando em Agronomia (Produção Vegetal) pelo convênio DINTER entre a UNESP/Jaboticabal-SP e a UFPI/ Teresina-PI. E-mail: fluisga@yahoo.com.br 3 Eng. Agron, Dr., Professor Adjunto do Departamento de Tecnologia da FCAV/UNESP, Jaboticabal. Via de acesso Prof. Paulo Donato Castellane, s/n, 14.884-900, Jaboticabal-SP. E-mail: cazetta@fcav.unesp.br 4 Eng. Agron., MS., Doutoranda em Agronomia (Ciência do Solo), FCAV/UNESP, Jaboticabal-SP. E-mail: teferxa@hotmail.com ADUBAÇÃO FOSFATADA NO MELOEIRO-AMARELO: REFLEXOS NA PRODUÇÃO E QUALIDADE DOS FRUTOS 1 FRANCISCO LUIS GONÇALVES DE ABRÊU 2 , JAIRO OSVALDO CAZETTA 3 , TEREZINHA FERREIRA XAVIER 4 RESUMO -O melão (Cucumis melo L.) é uma das culturas de grande expressão econômica e social para a região Nordeste do Brasil. Apesar disso e dos baixos níveis de fósforo (P) dos solos tropicais, existem poucas pesquisas sobre adubação com P nesta cultura, embora seja frequentemente mencionado que este nutriente tem papel preponderante na produção e qualidade dos frutos. Neste contexto, objetivou-se com este trabalho avaliar o efeito de doses de P (0; 120; 240; 360 e 480 kg ha -1 de P 2 O 5 ), na produção e qualidade do melão-amarelo híbrido Goldex F 1 , nas condições ambientais de Teresina -Piauí. O experimento foi conduzido em um delineamento de blocos ao acaso, com quatro repetições, tendo 40 plantas por parcela. Os frutos foram colhidos aos 75 após o plantio. Foram avaliados os dados médios da produção total, produção de frutos comerciais, massa e número de frutos por planta, comprimento e diâmetro de frutos, espessura da polpa de frutos, sólidos solúveis, acidez titulável e o índice de maturação. A produção total e comercial, assim como a massa e o número de frutos e acidez titulável aumentaram com as doses de P aplicadas até a dose de 278 kg ha PHOSPHORUS FERTILIZATION ON MELON: REFLEXES ON FRUITS PRODUCTION AND QUALITYABSTRACT -The culture of melon (Cucumis melo L.) has a great economic and social expression for the Northeast region of Brazil. Although its importance in the Brazilian agriculture, and the low levels of phosphorus (P) on tropical soils, there are reduced number of researches regarding P fertilization for this culture, even though is frequently mentioned that this nutrient would have preponderant rules on the development, growth and quality of the fruits. Thus, the objective of this study was to evaluate the effect of P doses on the production and quality of yellow cantaloupes, hybrid Goldex F1, growing under Teresina-PI conditions. The experiment was composed by 5 P doses (0, 120, 240, 360 and 480 kg ha -1 of P 2 O 5 ), carried out in four randomized blocks design. The fruits were harvested at 75 days after planting, and evaluated the total production; production of commercial fruits; mass and number of fruits per plant; length and diameter of fruits; pulp thickness, soluble solids, acidity and maturation index. The results indicated that the total and commercial production, mass and number of fruits as well as acidity increas...

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Qualidade dos frutos de tipos de melão,produzidos em ambiente protegido

Cited by 10 publications

References 10 publications

Influence of the main stem pruning and fruit thinning on quality of melon

Influence of the main stem pruning and fruit thinning on quality of melon

Yield and quality of melon under silicon doses and irrigation management in a greenhouse

Adubação fosfatada no meloeiro-amarelo: reflexos na produção e qualidade dos frutos

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