PÓS-COLHEITA DO MELÃO AMARELO "GOLDEX" CULTIVADO SOB ADUBAÇÃO VERDE E PLANTIO DIRETO COM DIFERENTES COBERTURAS

PÓS-COLHEITA DO MELÃO AMARELO "GOLDEX" CULTIVADO SOB ADUBAÇÃO VERDE E PLANTIO DIRETO COM DIFERENTES COBERTURAS LAIANE TORRES SILVA1; EBENÉZER DE OLIVEIRA SILVA2; MARIA CLÉA BRITO DE FIGUEIRÊDO3; LUIZ CLAUDIO CORRÊA4 E FERNANDO ANTONIO SOUZA DE ARAGÃO2 1 Tecnóloga em Fruticultura Irrigada, Doutora em Fitotecnia, Professora do Instituto Federal do Sertão-PE, Rua Dr. Souza Filho, s/n – Centro, 56380-000, Santa Maria da Boa Vista – PE, Brasil, [email protected] Engenheiros Agrônomos, Pesquisadores Doutores, Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2270 – Planalto do Pici, 60511-110, Fortaleza, CE, Brasil, [email protected]; [email protected] Cientista da Computação, Pesquisadora Doutora, Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2270 – Planalto do Pici, 60511-110, Fortaleza, CE, Brasil, [email protected] Biólogo, Analista A Doutor, Embrapa Semiárido, BR-428, Km 152, Zona Rural, 56302-970, Petrolina, PE, Brasil, [email protected] 1 RESUMO O melão amarelo é o mais cultivado na região Nordeste, maior produtora de melão do Brasil. Estudos têm sido realizados utilizando-se coberturas vegetais, que beneficiam o solo e melhoram a qualidade dos frutos, o que pode resultar em maior manutenção da qualidade pós-colheita. Melão amarelo “Goldex” foi cultivado em duas safras, sob adubação verde e plantio direto com diferentes coberturas e a qualidade dos frutos avaliada com relação à aparência externa, perda de massa, firmeza, sólidos solúveis e açúcares totais na época da colheita e ao final de 28 dias de armazenamento (22 dias a 11 ºC e 85 a 90% de U.R mais 6 dias a 20 ºC e 85 a 90% de U.R). Não houve alterações com relação à aparência, firmeza e perda de massa. Sólidos solúveis e açúcares totais foram melhor preservados nos frutos do sistema com adubação verde, com maiores teores naqueles provenientes da adubação verde utilizando crotalária e crotalária mais milheto, associados ao mulching plástico. O uso combinado do sistema por adubação verde com estas coberturas pode ser uma alternativa na produção de melões "Goldex" no polo de produção Ceará/ Rio Grande do Norte. Palavras-chave: Cucumis melo L., sistemas de cultivo, qualidade dos frutos. SILVA, L.T.; SILVA, E. O.; FIGUEIRÊDO, M. C. B.; CORRÊA, L. C.; ARAGÃO, F. A. S.POSTHARVEST OF "GOLDEX" YELLOW MELON CULTIVATED UNDER AND DIRECT PLANTING WITH DIFFERENT COVERS 2 ABSTRACT The yellow melon is the most cultivated in the Northeast, the largest producer of melon in Brazil. Studies have been conducted using vegetative covers that benefit the soil and improve the quality of fruits, which can result in higher maintenance of postharvest quality. The yellow melon "Goldex" was grown in two seasons under green manure and tillage with different toppings and fruit quality was assessed with regard to the external appearance, weight loss, firmness, soluble solids and total sugars at harvest and at the end of 28 days of storage (22 days at 11 to 90 ° C and 85% RH over 6 days at 20 ° C and 85 to 90% RH). There were no changes in appearance, firmness and weight loss. Soluble solids and total sugars were better preserved in the fruits of the system with green manure, with higher levels in those from green manure using crotolaria and crotolaria plus millet, associated with plastic mulching. The combined use of the system with green manuring and these covers can be an alternative in the production of "Goldex" melons in Ceará / Rio Grande do Norte production center. Keywords: Cucumis melo L., growing systems, fruit quality.

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Postharvest storage of three chayote (Sechium edule (Jacq.) Sw.) varieties

Scientia Agropecuaria ◽

10.17268/sci.agropecu.2021.027 ◽

2021 ◽

Vol 12 (2) ◽

pp. 239-247

Author(s):

Yeimy Ramírez-Rodas ◽

Lourdes Arévalo-Galarza ◽

Jorge Cadena-Iñiguez ◽

Adriana Delgado-Alvarado ◽

Lucero Ruiz-Posadas ◽

...

Keyword(s):

Weight Loss ◽

Fruit Quality ◽

Chilling Injury ◽

Titratable Acidity ◽

Soluble Solids ◽

Germplasm Bank ◽

Total Sugars ◽

Sechium Edule ◽

Important Variety ◽

Different Temperatures

The consumer demand for chayote (Sechium edule (Jacq.) Sw.) fruits has increased in recent years, virens levis being the most important variety, although other chayote varieties are gaining importance such as nigrum xalapensis and n. spinosum. However, the postharvest behavior of these varieties is different, so it is important to evaluate the factors that limit the shelf life of each variety. Therefore, in this study, fruits of each variety from the Mexican National Germplasm Bank of Sechium edule were used. The following fruit quality variables were evaluated: weight loss, humidity (%), color, chlorophyll, titratable acidity, total soluble solids (TSS), total sugars, and stomatal characteristics. In addition, the storage potential of each variety was evaluated for two weeks at different temperatures, 7°, 13° (85% RH) and 24 °C (60% RH), with the application of 1-methylcyclopropene (1-MCP). The variables evaluated were viviparism, disease severity, weight loss, dehydration and chilling injury (CI). The fruits of n. xalapensis and n. spinosum have a higher content of chlorophylls and carotenoids, but similar contents of TSS, acidity and total sugars than v. levis fruits. The use of 1-MCP reduced viviparism in all varieties, and the severity of blisters was higher in v. levis. The fruits of the three varieties presented severe CI when stored at 7 °C but the most susceptible to dehydration and diseases severity is n. spinosum.

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Pollination Methods and Integrated Fertilizer Influenced the Pollination Rate, Fruit Development, and Quality of Cucumis melo L. under Greenhouse Conditions

Sustainability ◽

10.3390/su132313300 ◽

2021 ◽

Vol 13 (23) ◽

pp. 13300

Author(s):

Nik Zuraila Nik Hassan ◽

Siti Zaharah Sakimin ◽

Noraini Md Jaafar ◽

Illani Zuraihah Ibrahim

Keyword(s):

Organic Acid ◽

Cucumis Melo ◽

Leaf Tissue ◽

Soluble Solids ◽

Postharvest Quality ◽

Yield Quality ◽

Solids Content ◽

Pollination Methods ◽

Cucumis Melo L

This study was conducted to determine the effect of pollination methods (PMs) and integrated fertilizer (IF) application on the pollination rate, yield, and fruit quality of rockmelon (Cucumis melo L. var. Reticulatus cv. Glamour). This factorial experiment was arranged in a split plot design with four replications. Two rates of IF between chemical (CF) and organic (OF) fertilizer were investigated, namely, T1 (100% CF), which served as a control, and T2 (75% CF + 25% OF). The three PMs used in this study were natural (NP), bee (BP), and human (HP) pollination. Data collection included the pollination rate, yield, postharvest quality (soluble solids content, color, firmness, sugar, and organic acid), and macronutrient content in leaf tissue. The results of this study showed that there was an interaction of the pollination rate between PM and IF; however, the number of bees that survived decreased over time. The yield quality showed an interaction between PM and IF for both the fruit diameter and weight, while no interaction between PM and IF for the organic acid and sugar contents was observed. In conclusion, T2 application combined with BP reduced CF utilization, which benefits the development of a sustainable rockmelon production system.

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Quality Improvement of Netted Melon (Cucumis melo L. var. reticulatus) through Precise Nitrogen and Potassium Management in a Hydroponic System

Agronomy ◽

10.3390/agronomy10060816 ◽

2020 ◽

Vol 10 (6) ◽

pp. 816

Author(s):

Rita S.W. Yam ◽

Yen-Tzu Fan ◽

Jing-Tian Lin ◽

Chihhao Fan ◽

Hsiao-Feng Lo

Keyword(s):

Fruit Quality ◽

Precision Agriculture ◽

Cucumis Melo ◽

Developmental Stages ◽

Fruit Production ◽

Fruit Weight ◽

Soluble Solids ◽

Nutrient Manipulation ◽

Experimental Treatments ◽

Cucumis Melo L

The quality-oriented fruit production in well-controlled enclosed hydroponic systems has been greatly enhanced by the technology of precision agriculture. Over-fertilisation has been commonly applied to the traditional hydroponic culture of fruit crops, without considering different nutrient demands during development. Adjusting the nutrient formulations depending on crop developmental stages could enable efficient fertilisation to increase yield quality. In this study, N-reduced and K-modified nutrient solutions were applied for a two-step nutrient manipulation experiment, to improve the fruit quality (Experiment I) and optimise the fertilisation schemes (Experiment II) of hydroponic netted melon (Cucumis melo L. var. reticulatus). The N-reduced and K-modified treatments, before fruiting stage in Experiment I, obtained higher fruit quality with increased fruit weight, dry matter ratio, flesh thickness, and total soluble solids. In Experiment II, fruits cultured under treatment II-3 (applied with 100-75-100% N and 100-125-75% K during VG-PYF-FEM) had the highest overall preferences, with ‘rich’ aroma, ‘dense’ texture, and ‘perfect’ sweetness, compared to all other experimental treatments. Our study successfully improved the fertilisation schemes for a hydroponic netted melon with precise N- and K-nutrient formulations specific to different developmental stages. Our study promotes the future advancement of precise fertilisation to improve fruit quality and reduce environmental pollution from farming activities.

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Evaluation of the Organic and Mineral Fertilization on Postharvest Quality of Cantaloupe (Cucumis melo L.)

HortScience ◽

10.21273/hortsci.32.3.489a ◽

1997 ◽

Vol 32 (3) ◽

pp. 489A-489

Author(s):

Maria E. Pérez de C ◽

Josefina Rodirguez ◽

Susana Torcates ◽

Mario Pérez y Hugo Ramírez

Keyword(s):

Cucumis Melo ◽

Dry Matter ◽

Quality Parameters ◽

Soluble Solids ◽

Postharvest Quality ◽

Mineral Fertilization ◽

Average Temperature ◽

Goat Manure ◽

Cucumis Melo L

Several postharvest quality parameters of cantaloupe fruit were grown under different organic and mineral fertilization schemes We evaluated a Laguna hybrid (Asgrow) cantaloupe grown under a design of blocks completely randomized, with three fertilizer treatments corresponding to: T1, goat manure; T2, simple fertilization; T3 mixed fertilization, with six replications each. The fruits were mature-harvested and stored in a room with an average temperature of 18°C for posterior laboratory analysis. The results showed different effects of the treatments on the following parameters: total soluble solids, diameter of the fruits, and thickness of the pulp, and showed no effects on consistency of fruits, cavity, dry matter, and fresh weight. All these parameters decreased during the period of storage. The organic manure treatments showed the best values of most of the evaluated parameters.

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ChemInform Abstract: Impact of Potassium Nutrition on Postharvest Fruit Quality: Melon (Cucumis Melo L) Case Study

ChemInform ◽

10.1002/chin.201108276 ◽

2011 ◽

Vol 42 (8) ◽

pp. no-no

Author(s):

Gene E. Lester ◽

John L. Jifon ◽

Donald J. Makus

Keyword(s):

Fruit Quality ◽

Cucumis Melo ◽

Potassium Nutrition ◽

Cucumis Melo L

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Effect of Gum Arabic and Starch-Based Coating and Different Polyliners on Postharvest Quality Attributes of Whole Pomegranate Fruit

Processes ◽

10.3390/pr10010164 ◽

2022 ◽

Vol 10 (1) ◽

pp. 164

Author(s):

Tatenda Gift Kawhena ◽

Umezuruike Linus Opara ◽

Olaniyi Amos Fawole

Keyword(s):

Weight Loss ◽

Effective Treatment ◽

Cold Storage ◽

High Density Polyethylene ◽

Gum Arabic ◽

Soluble Solids ◽

Postharvest Quality ◽

Respiration Rates ◽

Pomegranate Fruit

This study investigated the effect of gum Arabic and starch-based coating and two polyliners (Liner 1-micro-perforated Xtend® and Liner 2-macro-perforated high-density polyethylene) on whole ‘Wonderful’ pomegranate fruit during cold storage (5 ± 1 °C and 95 ± 2% RH). Uncoated (UC) and coated (GAMS) fruit were packaged into standard open top ventilated cartons (dimensions: 0.40 m long, 0.30 m wide and 0.12 m high) with (GAMS + Liner 1, GAMS + Liner 2, UC + Liner 1 and UC + Liner 2) or without (UC and GAMS) polyliners. After 42 d, treatment GAMS + Liner 1 recorded the least weight loss (4.82%), whilst GAMS recorded lower (8.77%) weight loss than UC + Liner 2 (10.07%). The highest (24.74 mLCO2 kg−1h−1) and lowest (13.14 mLCO2 kg−1h−1) respiration rates were detected in UC and GAMS + Liner 1, respectively. The highest and lowest total soluble solids were recorded for GAMS (16.87 °Brix), and GAMS + Liner 1 (15.60 °Brix) and UC + Liner 1 (15.60 °Brix), respectively. Overall, no decay was detected for coated fruit packaged with either Liner 1 or Liner 2. Therefore, the combination of GAMS with Xtend® polyliners proved to be an effective treatment to maintain the quality of ‘Wonderful’ pomegranates during storage.

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BALANÇO DA FERTIRRIGAÇÃO EM MELOEIRO “PELE-DE-SAPO”

Irriga ◽

10.15809/irriga.2007v12n1p63-72 ◽

2007 ◽

Vol 12 (1) ◽

pp. 63-72 ◽

Cited By ~ 1

Author(s):

Manoel Januário da Silva Júnior ◽

José Francismar de Medeiros ◽

Fábio Henrique Tavares de Oliveira ◽

Indalécio Dutra

Keyword(s):

Soil Nitrogen ◽

Cucumis Melo ◽

Nutrient Balance ◽

Rio Grande ◽

Critical Periods ◽

Management Efficiency ◽

Crop Cycle ◽

Phosphorus And Potassium ◽

Cucumis Melo L ◽

Nitrogen Phosphorus

BALANÇO DA FERTIRRIGAÇÃO EM MELOEIRO “PELE-DE-SAPO” Manoel Januário da Silva Júnior1; José Francismar de Medeiros2; Fábio Henrique Tavares de Oliveira3; Indalécio Dutra21Departamento de Engenharia Rural, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP, [email protected] de Ciências Ambientais, Universidade Federal Rural do Semi-Árido, Mossoró 3Departamento de Solos e Engenharia Rural, CCA, Universidade Federal da Paraiba, Areia, PB, 1 RESUMO O melão produzido no estado do Rio Grande do Norte é cultivado sob irrigação, sendo uma das culturas em que mais se pratica a fertirrigação. A fertirrigação tem se mostrado como a técnica mais adequada para parcelar a dose dos nutrientes em várias aplicações durante o ciclo da cultura. Entretanto, ainda não se conhece a eficiência dessa técnica. O objetivo deste trabalho foi avaliar o balanço dos nutrientes no sistema solo-planta, aplicados através da fertirrigação identificando os períodos críticos para o manejo da fertirrigação. Os tratamentos foram: doses de nitrogênio (83, 119 e 156 kgN ha-1) e doses de potássio (190, 271 e 352 kg K2O ha-1) aplicadas via fertirrigação e o experimento foi montado em blocos aleatorizados com três repetições. Coletou-se solo e planta aos 22, 33, 43, 54 e 69 dias após a semeadura e determinaram-se os teores de N, P e K na planta e no solo. O aumento da dose de nitrogênio provocou aumento das perdas desse nutriente e, quando se aumentou a dose de potássio houve acúmulo no solo. As maiores perdas de nitrogênio, fósforo e potássio ocorreram no período de maior exigência nutricional da cultura. UNITERMOS: Cucumis melo L., manejo da fertirrigação, índices de eficiência SILVA JÚNIOR, M. J. da; MEDEIROS, J. F. de; OLIVEIRA, F. H. T. de; DUTRA, I. BALANCE OF FERTIGATION IN “PELE-DE-SAPO” MELON PLANTS 2 ABSTRACT Melon production in Rio Grandedo Norte state (Brazil) is grown under irrigation and it is one of the crops where fertigation is more used. The importance of fertigation technique is attributed to nutrient dose fractioning into several applications during crop cycle. Therefore, the efficiency of this technique is not known yet. This study aimed to evaluate nutrient balance applied through fertigation in a soil-plant system to identify critical periods for fertigation management. The treatments consisted of nitrogen doses (83, 119, and 156 kgN ha-1) and potassium doses (190, 271, and 352 kg K2O ha-1) applied via fertigation and the experimental design was randomized blocks with three replications. Soil and plants were sampled at 22, 33, 43, 54 and 69 days after seeding to determine plant and soil contents of N, P and K. The increase in nitrogen dose raised soil nitrogen losses, but the increase in potassium dose caused accumulation in the soil. Higher losses of nitrogen, phosphorus and potassium occurred in the crop higher nutritional demand stage. KEYWORDS: Cucumis melo L., fertigation management, efficiency indices

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Potential of Postharvest Coatings to Maintain Freshness of Red-Fleshed Pitaya (Hylocereus costaricensis)

Agriculture ◽

10.3390/agriculture11090892 ◽

2021 ◽

Vol 11 (9) ◽

pp. 892

Author(s):

Nur Azlin Razali ◽

Steven A. Sargent ◽

Charles A. Sims ◽

Jeffrey K. Brecht ◽

Adrian D. Berry ◽

...

Keyword(s):

Weight Loss ◽

Tap Water ◽

Titratable Acidity ◽

Quality Parameters ◽

The Other ◽

Soluble Solids ◽

Postharvest Quality ◽

Quality Factors ◽

Climacteric Fruit

Pitaya is a non-climacteric fruit that has white or red flesh with numerous small, black seeds. It has a high moisture content; however, water loss during handling and storage negatively affects the fresh weight, firmness and appearance of the fruit, decreasing market value. Application of compatible postharvest coatings has been shown to benefit postharvest quality of many crops. The objective of this study was to evaluate the effect of two commercial coatings on weight loss and quality of pitaya during storage. Pitaya fruit were commercially harvested and sorted for uniformity of size and freedom from defects. Fruit were briefly immersed in either a vegetable oil-based coating (VOC; Sta-Fresh® 2981) or a carnauba-based coating (CC; Endura-Fresh™ 6100) according to manufacturer’s recommendations. Fruit immersed in tap water served as a control. Fruit were fan-dried at room temperature for 20 min, then stored at 7 °C with 85% relative humidity (RH) and evaluated for selected physical quality parameters each 5 days during 20 days. After each evaluation, fruit were peeled and frozen for later analysis of soluble solids content (SSC), total titratable acidity (TTA); on day 15 fresh samples were evaluated by an untrained consumer sensory panel. CC prevented exocarp shriveling for 15 days of storage, compared to uncoated pitaya (16.3% area affected); shriveling in VOC was intermediate and not significantly different from the other treatments. Mesocarp firmness remained constant throughout 15 days of storage regardless of treatment. Fruit exocarp h* angle increased slightly by day 20, becoming slightly less red, and there were no negative treatment effects for the other quality factors measured: SSC (11.33%), TTA (0.25%), weight loss (5.5%) or sensory evaluations (appearance, flavor, texture, firmness, and juiciness). After 20 days storage, appearance for fruit from all treatments was rated unacceptable due to development of anthracnose lesions. It was concluded that both CC and VOC maintained quality of pitaya for 15 days at 7 °C and 85% RH by delaying exocarp shriveling.

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Supplemental Foliar Potassium Applications with or without a Surfactant can Enhance Netted Muskmelon Quality

HortScience ◽

10.21273/hortsci.41.3.741 ◽

2006 ◽

Vol 41 (3) ◽

pp. 741-744 ◽

Cited By ~ 24

Author(s):

Gene E. Lester ◽

John L. Jifon ◽

D. J. Makus

Keyword(s):

Ascorbic Acid ◽

Fruit Quality ◽

Soluble Solids ◽

Ionic Surfactant ◽

Tissue Pressure ◽

Uptake Inhibition ◽

Total Sugars ◽

Fruit Tissue ◽

Solids Concentration ◽

Β Carotene

Netted muskmelon [Cucumis melo L. (Reticulatus Group)] fruit quality (ascorbic acid, β-carotene, total free sugars, and soluble solids concentration (SSC)) is directly related to plant potassium (K) concentration during fruit growth and maturation. During reproductive development, soil K fertilization alone is often inadequate due to poor root uptake and competitive uptake inhibition from calcium and magnesium. Foliar applications of glycine-complexed K during muskmelon fruit development has been shown to improve fruit quality, however, the influence of organic-complexed K vs. an inorganic salt form has not been determined. This glasshouse study investigated the effects of two K sources: a glycine-complexed K (potassium metalosate, KM) and potassium chloride (KCl) (both containing 800 mg K/L) with or without a non-ionic surfactant (Silwet L-77) on melon quality. Orange-flesh muskmelon `Cruiser' was grown in a glasshouse and fertilized throughout the study with soil-applied N–P–K fertilizer. Starting at 3 to 5 d after fruit set, and up to 3 to 5 d before fruit maturity at full slip, entire plants were sprayed weekly, including the fruit, with KM or KCl with or without a surfactant. Fruit from plants receiving supplemental foliar K had significantly higher K concentrations in the edible middle mesocarp fruit tissue compared to control untreated fruit. Fruit from treated plants were also firmer, both externally and internally, than those from non-treated control plants. Increased fruit tissue firmness was accompanied by higher tissue pressure potentials of K treated plants vs. control. In general, K treated fruit had significantly higher SSC, total sugars, total ascorbic acid, and β-carotene than control fruit. Fall-grown fruit generally had higher SSC, total sugars, total ascorbic acid and β-carotene concentrations than spring-grown fruit regardless of K treatment. The effects of surfactant were not consistent but in general, addition of a surfactant tended to affect higher SSC and β-carotene concentrations.

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