scholarly journals SALINIDADE E MANEJO DA FERTIRRIGAÇÃO EM AMBIENTE PROTEGIDO. I: EFEITOS SOBRE O CRESCIMENTO DE MELOEIRO.

Irriga ◽  
2006 ◽  
Vol 11 (2) ◽  
pp. 208-218 ◽  
Author(s):  
Nildo Da Silva Dias ◽  
Sergio Nascimento Duarte ◽  
José Francismar de Medeiros ◽  
José Francisco Teles Filho
Keyword(s):  
Plant Growth ◽  
Electric Conductivity ◽  
Soil Solution ◽  
Soil Salinity ◽  
Cucumis Melo ◽  
Fertilizer Application ◽  
Saline Stress ◽  
Significant Difference ◽  
Initial Soil ◽  
Cucumis Melo L

SALINIDADE E MANEJO DA FERTIRRIGAÇÃOEM AMBIENTE PROTEGIDO. I: EFEITOS SOBRE O CRESCIMENTO DE MELOEIRO.  Nildo da Silva Dias1; Sergio Nascimento Duarte2; José Francismar de Medeiros1; José Francisco Teles Filho21Departamento de Engenharia Ambiental, Universidade Federal Rural do Sem- Árido, Mossoró, RN. [email protected] de Engenharia Rural, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP  1 RESUMO Com o objetivo de avaliar o efeito de diferentes níveis de salinidade do solo causados pela aplicação de fertilizantes e de manejos da fertirrigação no crescimento do meloeiro (Cucumis melo L.), conduziu-se um estudo em ambiente protegido na área experimental do Departamento de Engenharia Rural da ESALQ/USP, localizado no município de Piracicaba, SP. Os tratamentos foram compostos da combinação de dois fatores: salinidade inicial do solo aos níveis de 1,0; 2,0; 3,0; 4,0; 5,0 e  6,0 dS m-1 e dois manejos de fertirrigação, tradicional e com controle da condutividade elétrica da solução do solo. O delineamento estatístico adotado foi o de blocos casualizados completos com 4 repetições, sendo os fatores estudados arranjados em esquema fatorial de 6 x 2. Para avaliar o crescimento das plantas ao longo do ciclo selecionou-se, aleatoriamente, duas plantas de cada parcela a partir dos 19 dias após o transplantio. As variáveis analisadas foram altura de plantas, diâmetro de colo e área foliar. Os resultados mostraram que os efeitos da salinidade do solo sobre a altura e o diâmetro das plantas foram mais severos durante o desenvolvimento vegetativo inicial do que no inicio da frutificação, indicando uma possível adaptação da planta ao estresse salino ao longo do tempo. Não foi possível detectar diferenças expressivas causadas pelos dois tipos de manejo da fertirrigação. UNITERMOS: Cucumis melo L., solução do solo, condutividade elétrica.  DIAS, N.S, DUARTE, S.N; MEDEIROS, J.F.; TELES FILHO, J.F. SALINITY AND FERTIGATION MANAGEMENT IN GREENHOUSES. I. EFFECTS ON MELON PLANT GROWTH  2 ABSTRACT In order to evaluate melon plant growth under different initial soil salinity levels caused by fertilizer application and different fertigation management, a study was carried out under greenhouse conditions, at the experimental field of Department of Rural Engineering of “Escola Superior de Agricultura Luiz de Queiroz”-USP, Piracicaba, Brazil. Each treatment was a combination of two factors: initial soil salinity (1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 dS m-1) and two fertigation managements (traditional one and with monitoring of the soil solution electric conductivity). The statistical test was carried out in randomized blocks, arranged in a 6x2 factorial design and with four replications.  19 days after transplanting, two plants for each portion was selected at random to evaluate the plants growth along the crop cycle.  The analyzed variables were plant height, stem diameter and leaf area. Results showed that soil salinity effects on the height and diameter of the plants were more severe during early vegetative growth than in beginning of fruiting, indicating a possible plant adaptation to saline stress along time. It was not possible to detect any significant difference caused by the two different proposed fertigation managements. KEYWORDS: Cucumis melo L., soil solution, electric conductivity. 

scholarly journals SALINIDADE E MANEJO DA FERTIRRIGAÇÃO EM AMBIENTE PROTEGIDO. II: EFEITOS SOBRE O RENDIMENTO DO MELOEIRO.

Irriga ◽  
2006 ◽  
Vol 11 (3) ◽  
pp. 376-383 ◽  
Author(s):  
Nildo Da Silva Dias ◽  
Sérgio Nascimento Duarte ◽  
José Francismar de Medeiros ◽  
José Francisco Teles Filho
Keyword(s):  
Electric Conductivity ◽  
Soil Solution ◽  
Soil Salinity ◽  
Cucumis Melo ◽  
Soil Salinization ◽  
Fruit Yield ◽  
Yield Parameters ◽  
Initial Soil ◽  
Salinity Levels ◽  
Cucumis Melo L

 SALINIDADE E MANEJO DA FERTIRRIGAÇÃOEM AMBIENTE PROTEGIDO. II: EFEITOS SOBRE O RENDIMENTO DO MELOEIRO.  Nildo da Silva Dias1; Sergio Nascimento Duarte2; José Francismar de Medeiros1; José Francisco Teles Filho21Departamento de Engenharia Ambiental, Universidade Federal Rural do Sem- Árido, Mossoró, RN, [email protected] de Engenharia Rural, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP  1 RESUMO Devido à falta de conhecimento por parte dos nossos agricultores e técnicos a respeito do manejo adequado da fertirrigação, tem sido freqüente os problemas de salinização de solo, sobretudo em ambiente protegido. Neste sentido, o presente trabalho teve como objetivo estudar os efeitos de dois manejos da fertirrigação e de diferentes níveis de salinidade iniciais do solo causados pela aplicação excessiva de fertilizantes no rendimento do meloeiro (Cucumis melo L.). O experimento foi desenvolvido em ambiente protegido na área experimental do Departamento de Engenharia Rural da ESALQ/USP, localizado no município de Piracicaba, SP. Os tratamentos foram compostos da combinação dos fatores: salinidade inicial do solo aos níveis 1,0; 2,0; 3,0; 4,0; 5,0 e 6,0 dS m-1 e dos manejos de fertirrigação tradicional e com controle da condutividade elétrica da solução do solo. O delineamento estatístico adotado foi o de blocos casualizados completos com 4 repetições, sendo os fatores estudados arranjados em esquema fatorial de 6 x 2. Determinou-se o limite máximo da salinidade (salinidade limiar) tolerada pela cultura, causada pelo excesso de sais fertilizantes e seus efeitos sobre as variáveis rendimento total e comercial de frutos por planta e nos componentes de produção (Peso médio de frutos comerciais e totais). Pelos resultados, o rendimento total e comercial e o peso médio dos frutos foram significativamente reduzidos com o aumento da salinidade do solo, mas o manejo da fertirrigação não influenciou significativamente sobre as variáveis estudadas. UNITERMOS: Cucumis melo L., solução do solo, condutividade elétrica.  DIAS, N.S, DUARTE, S.N; MEDEIROS, J.F.; TELES FILHO, J.F. SALINITY AND FERTIGATION MANAGEMENT IN GREENHOUSES. II: EFFECTS ON FRUIT YIELD OF MELON  2 ABSTRACT Due to the lack of knowledge of the appropriate fertigation management in greenhouses by our farmers and technicians, problems of soil salinization have been frequently observed. The objective of the present work was to study the effects of different initial soil salinity levels caused by fertilizer application, with differentiated fertigation management, on yield of melon plants (Cucumis melo L.). The experiment was carried out under greenhouse conditions, in the Department of Rural Engineering of “Escola Superior de Agricultura Luiz de Queiroz”-USP, Piracicaba, Brazil. The treatments consisted of a combination of factors, initial soil salinity levels of 1.0, 2.0 3.0 4.0, 5.0 and 6.0 dS m-1 and fertigation management (traditional and with soil solution electric conductivity monitoring). The statistical test was carried out in randomized blocks, arranged in a 6x2 factorial design, and four replications. Soil salinity maximum limit for that culture, caused by fertilizer excess, was determined and its effects on fruit yield parameters and total and marketable yields. Results showed that both total and marketable fruit yields and total weight per fruit were significantly reduced as soil salinity increased, but fertigation management did not significantly affected this yield parameters. KEYWORDS: Cucumis melo L., soil solution, electric conductivity.

scholarly journals Emergence and vegetative development of melon in function of the soil salinity

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 458-464 ◽  
Author(s):  
Daniel Teixeira Pinheiro ◽  
Fabio Delazari ◽  
Carlos Nick ◽  
Edson Marcio Mattiello ◽  
Denise Cunha Fernandes dos Santos Dias
Keyword(s):  
Soil Salinity ◽  
Cucumis Melo ◽  
Arid Regions ◽  
Seedling Emergence ◽  
Saline Stress ◽  
Exchangeable Sodium ◽  
Vegetative Development ◽  
Percentage Points ◽  
Cucumis Melo L ◽  
Different Levels

Soil salinity is one of the main factors limiting the development and global agricultural productivity. Melon (Cucumis melo L.) is mainly produced in arid and semi-arid regions around the world, favoring the accumulation of soluble salts in the soil. Therefore, this study aimed to evaluate the emergence and vegetative development of melon genotype under different levels of soil salinity. The assessments were performed based on the exchangeable sodium percentage (ESP) at 0, 20, 25, 30 and 35%. The emergence was affected around 30 percentage points, by comparing the control and the highest dose (35%). The emergence speed and the emergence speed index parameters were also affected in a similar way, as well as the length and dry matter of the shoot. The growth of the plants was also affected by the saline stress, being superior in the control (0%) in relation to the treatments with NaCl. The leaf area increased between weeks 4 and 7 after the planting and was slightly superior in the control in relation to the plants submitted to saline stress (20, 25, 30 and 35% of exchangeable sodium). The melon is more sensible to the saline stress in the seedling emergence than in the vegetative development over time. The development of melon seedlings is mainly affected in exchangeable sodium values superior to 20%. The analyzed hybrid is sensible to the saline stress even in 20% of exchangeable sodium.

scholarly journals Growth and Production of Melon Plant (Cucumis melo L) in Ultisol Soil with Addition of Liquid Organic Fertilizer (LOF) Pineapple Peel

2018 ◽  
Vol 2 (1) ◽  
pp. 31-39
Author(s):  
Ratna Santi ◽  
Sitti Nurul Aini ◽  
Nopan Darmawan
Keyword(s):  
Plant Growth ◽  
Cucumis Melo ◽  
Block Design ◽  
Organic Fertilizer ◽  
Experimental Methods ◽  
Single Factor ◽  
Real Effect ◽  
Randomized Block Design ◽  
Pineapple Peel ◽  
Cucumis Melo L

Plant Growth and production of melon is affected by fertilizer so that alternative application of technology can be used liquid organic fertilizer (LOF) from pineapple peel. The purpose of this research is to know the effect ofliquid organic fertilizer on growth and production of melon plants in ultisol soil. Experimental methods used with single factor Randomized Block Design with 7 treatment levels were: inorganic fertilizer, 20 mL / 1 liter of water, 35 mL / 1 liter of water, 50 mL / 1 liter of water, P4 65 mL / 1 liter of water , P5 80 mL / 1 liter of water and 95 mL / 1 liter of water. The results of this study indicate the use of liquid organic fertilizer (LOF) does not gave a real effect on the growth and production of melon plants. Growth of melon plants treated 20 mL / 1 liter of water tend to be better while for production tend to be better at treatment 35 mL / 1 liter water.

scholarly journals DOSES DE POTÁSSIO APLICADAS VIA FERTIRRIGAÇÃO POR GOTEJAMENTO SUPERFICIAL E SUBSUPERFICIAL NO MELOEIRO CULTIVADO EM AMBIENTE PROTEGIDO

Irriga ◽  
2005 ◽  
Vol 10 (2) ◽  
pp. 184-192
Author(s):  
Inez Gifone Maia Sales ◽  
Thales Vinícius de Araújo Viana ◽  
Valdemício Ferreira de Sousa ◽  
Benito Moreira de Azevedo ◽  
Solerne Caminha Costa
Keyword(s):  
Drip Irrigation ◽  
Cucumis Melo ◽  
Fertilizer Application ◽  
Fruit Weight ◽  
Potassium Fertilizer ◽  
Level Increase ◽  
Total Productivity ◽  
Cucumis Melo L ◽  
Potassium 40 ◽  
Made In

DOSES DE POTÁSSIO APLICADAS VIA FERTIRRIGAÇÃO POR GOTEJAMENTO SUPERFICIAL E SUBSUPERFICIAL NO MELOEIROCULTIVADO EM AMBIENTE PROTEGIDO  Inêz Gifone Maia Sales; Thales Vinícius de Araújo Viana; Valdemício Ferreira de Sousa; Benito Moreira de Azevedo; Solerne Caminha CostaDepartamento de Engenharia Agrícola, Universidade Federal do Ceará, Fortaleza, CE,  [email protected]  1 RESUMO Esta pesquisa foi desenvolvida com o objetivo de estudar os efeitos de três doses de potássio, aplicadas via fertirrigação por gotejamento superficial e subsuperficial, na produtividade do meloeiro (Cucumis melo L.). O trabalho experimental foi conduzido, de abril a agosto de 2002, em um ambiente protegido, em Limoeiro do Norte, Ceará. Utilizaram-se mudas do híbrido de meloeiro Bônus 2, espaçadas de 0,5 x 1,0 m, com tutoramento vertical, em espaldeiras de 2,0m de altura. Os tratamentos resultaram de combinações entre doses de potássio (40; 120 e 200 kg ha-1) e o local de aplicação (superfície do solo ou subsuperficialmente). O delineamento experimental foi em blocos ao acaso, com arranjo fatorial 2 x 3, com 4 repetições. Foram avaliadas quatro variáveis: número e peso médio dos frutos e produtividades total e comercial. A aplicação de adubos potássicos na subsuperfície via irrigação não proporcionou diferenças significativas, assim como as doses de potássio aplicadas. UNITERMOS: Cucumis melo L, estufa, irrigação localizada.  SALES, I. G. E . ; VIANA, T. V. DE A.; SOUSA, V. F. DE; AZEVEDO, B. M. DE; COSTA, S. C. POTASSIUM DOSES APPLIED BY FERTIRRIGATION USING SUPERFICIAL AND SUBSUPERFICIAL IRRIGATION IN NET MELON IN GREENHOUSE  2 ABSTRACT The purpose of this research was to study the effects of three doses of potassium application, under drip irrigation in two soil profile layers, on melon productivity (Cucumis melo L.). The experiment was carried out in a kind of chapel-shaped greenhouse, in Limoeiro do Norte, CE, Brazil, from April to August 2002. Bonus 2 hybrid young plants were transplanted, separated every 0.5 x 1.0m and vertically supported on 2.0 m high racks. The treatments were a combination of doses of potassium (40; 120 and 200 kg ha-1) and the following nutrient application depths: 0.0 m (surface) and 0.20 m (subsurface). The experimental design was made in randomized blocks with factorial arrangement 2 x 3 and 4 replications. The evaluated variables were: number of fruits, average fruit weight, total productivity and commercial productivity. The potassium fertilizer application on subsurface by irrigation did not provide significant differences, in comparison to a surface application; the potassium level increase from 40 kg ha-1 to 120 kg ha-1 and 200 kg ha-1 did not cause significant changes in the analyzed variables. Keywords: Cucumis melo L, greenhouse, drip irrigation.

Influence of Fertilization Level by Soil Testing on Plant Growth and Fruit Quality in Melon (Cucumis melo L.)

2013 ◽  
Vol 22 (2) ◽  
pp. 162-166
Author(s):  
Mi-Ran Hwang ◽  
◽  
Hui-Eun Kim ◽  
Joon-Kook Kwon ◽  
Myeong-Whan Cho ◽  
...  
Keyword(s):  
Plant Growth ◽  
Fruit Quality ◽  
Cucumis Melo ◽  
Soil Testing ◽  
Fertilization Level ◽  
Cucumis Melo L

scholarly journals CmRAV1 shows differential expression in two melon (Cucumis melo L.) cultivars and enhances salt tolerance in transgenic Arabidopsis plants

2019 ◽  
Author(s):  
Lina Zhao ◽  
Furong Zhang ◽  
Bin Liu ◽  
Senlin Yang ◽  
Xue Xiong ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Cucumis Melo ◽  
Molecular Mechanisms ◽  
Transgenic Arabidopsis ◽  
Transcript Level ◽  
Soil Salinization ◽  
Saline Stress ◽  
Growth Stages ◽  
Plant Salt Tolerance ◽  
Cucumis Melo L

Abstract The growth and development of melon (Cucumis melo L.) are severely affected by soil salinization in many areas of the world, but the understanding of the molecular mechanisms underlying salt tolerance in melon remains limited. In this study, a new RAV (related to ABI3/VP1) gene, CmRAV1, was identified in melon. Protein structure homology analysis revealed that CmRAV1 contains an AP2 domain and a B3 domain, and subcellular localization assay revealed that CmRAV1 is localized in the nucleus. The transcript level of CmRAV1 was closely correlated with NaCl treatment, and the expression pattern of CmRAV1 differed between two cultivars (salt-tolerant and salt-sensitive cultivars) under NaCl treatment. In addition, yeasts transformed with CmRAV1 showed notably improved growth on medium containing 200 mM NaCl compared with wild-type ones. The overexpression of CmRAV1 in transgenic Arabidopsis thaliana resulted in enhanced salt tolerance at the seed germination and seedling growth stages. This study demonstrated that the expression of CmRAV1 was associated with saline stress and can potentially be utilized to improve plant salt tolerance.

scholarly journals Quality Improvement of Fruit Melon Varieties (Cucumis Melo L.) With Ab Mix Nutrition Formulation

2021 ◽  
Vol 1 (1) ◽  
pp. 486-493
Author(s):  
Bambang Supriyanta ◽  
Frans Richard Kodong ◽  
Indah Widowati ◽  
Farida Ariefa Siswanto
Keyword(s):  
Cucumis Melo ◽  
Economic Value ◽  
Sweet Taste ◽  
Observation Data ◽  
High Quality ◽  
Significance Level ◽  
Randomized Design ◽  
Significant Difference ◽  
Cucumis Melo L

Melon (Cucumis melo L.) is a horticultural commodity that has high economic value. The sweet taste, thick flesh, crunchy texture and high quality are the reasons people are interested in melon. The increase in melon productivity can be supported by the use of superior seeds and cultivation with a hydroponic system. The purpose of this research were to obtain premium melon with high quality which are characterized by sweetness levels above 15 brix, attractive skin and flesh color, high vitamin C content, and fruit flesh thickness. The study was conducted in March to July 2021 in greenhouse CV. Agroniaga. This study used a Completely Randomized Design (CRD) with 8 treatments: N1 (Formulation 1), N2 (Formulation 2), N3 (Formulation 3), N4 (Formulation 4), N5 (Formulation 5), N6 (Control 1 AB mix Nutriponic ), N7 (Control 2 AB mix Goodplant), and N8 (Control 3 General). Quantitative data were analyzed by analysis of variance at the 5% level. If there is a significant difference between treatments, the further test is continued with the Duncan multiple range test at a significance level of 5%. Qualitative observation data will be analyzed with descriptive statistics. Result of this research showed that N3 formula is the best to increase both harvest and quality of fruit.

scholarly journals SALINIZAÇÃO DO SOLO POR APLICAÇÃO DE FERTILIZANTES EM AMBIENTE PROTEGIDO

Irriga ◽  
2007 ◽  
Vol 12 (1) ◽  
pp. 135-143 ◽  
Author(s):  
Nildo Da Silva Dias ◽  
Sergio Nascimento Duarte ◽  
José Francisco Teles Filho ◽  
Roberto Takafumi Yoshinaga
Keyword(s):  
Electric Conductivity ◽  
Cucumis Melo ◽  
Soil Salinization ◽  
Soil Samples ◽  
Second Phase ◽  
Plant Tolerance ◽  
Salinity Levels ◽  
Maximum Water ◽  
Cucumis Melo L ◽  
Tolerance To Salinity

SALINIZAÇÃO DO SOLO POR APLICAÇÃO DE FERTILIZANTES EM AMBIENTE PROTEGIDO  Nildo da Silva Dias1; Sergio Nascimento Duarte2; José Francisco Teles Filho2; Roberto Takafumi Yoshinaga21Departamento de Ciências Ambientais, Universidade Federal Rural do Semi-Árido, Mossoró, RN, [email protected] de Engenharia Rural, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP  1 RESUMO As curvas de salinização artificial de solos por excesso de adubos auxilia experimentos com manejo de fertirrigação e tolerância das plantas à salinidade, visando o controle da salinidade em ambientes protegidos. Para construir as curvas de salinização artificial do solo por aplicação de fertilizantes desenvolveu-se um experimento no Departamento de Engenharia Rural da Escola Superior de Agricultura “Luiz de Queiroz”, município de Piracicaba, SP. A primeira fase do experimento constou de ensaios de curvas de salinidade de água em função da concentração de fertilizantes e, na segunda etapa utilizaram-se amostras de 10 kgde Latossolo Vermelho, os quais foram peneirados, secos ao ar e acondicionados em vasos de 17 L. As amostras de solos foram salinizadas artificialmente por excesso de adubos utilizados na fertirrigação, sendo as quantidades e as proporções de sais aplicados no solo baseados na extração total de nutrientes para a cultura do melão (Cucumis melo L.). A umidade do solo foi elevada até a máxima capacidade de retenção e concomitantemente foram adicionados os sais diluídos na água, obtendo-se nove níveis de salinidade do solo (1,0; 2,0; 3,0; 4,0; 5,0; 6,0; 7,0; 8,0 e 9,0 dS m -1) com três repetições. A curva de salinidade foi testada também em canteiros construídos sob ambiente protegido para se obter seis níveis de salinidade do solo (1,0; 2,0; 3,0; 4,0; 5,0 e 6,0 dS m -1). Pelos resultados constata-se que a salinização artificial do solo requer a elaboração criteriosa de curvas para que sejam adicionados aos solos adubos suficientes para se conseguir níveis de condutividade elétrica no extrato de saturação do solo pré-estabelecido. A técnica utilizada para salinizar artificialmente o solo permitiu que se atingisse CEes desejada com boa precisão. UNITERMOS: salinidade, condutividade elétrica, fertirrigação.  N.S., DIAS; S.N., DUARTE; J.F.T., FILHO; R.T.,YOSHINAGA. SOIL SALINIZATION THROUGH FERTILIZER APPLICATIONS IN GREENHOUSE  2 ABSTRACT The soil artificial salinization curves by over fertilization are helpful to experiments with fertirrigation management and plant tolerance to salinity in greenhouse. An experiment was carried out in a greenhouse located in an experimental area of the Department of Rural Engineering of ESALQ- USP, Piracicaba- SP, Brazil, in order to build artificial salization curves. The first phase of experiment consisted of water salinity curve assays in function of fertilizer concentrations. In the second phase, 10 kgsift-dried Oxisol soil samples conditioned in 17 Lpots were used. The soil samples were salinized artificially by fertilizers through fertirrigation; the applied salt dose amount and proportion were based on melon (Cucumis melo, L.) total nutritional extraction. Soil humidity was increased to maximum water hold capacity by using diluted salt in water and that resulted in 9 different salinity soil levels (1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 and 9.0 dS m -1) with 3 replications.  The salinity curve was tested in soil beds in two greenhouses to obtain six soil salinity levels (1.0, 2.0, 3.0, 4.0, 5.0 e 6.0 dS m -1). Artificial soil salinization requires a careful curve elaboration to produce the desired electric conductivity in the saturation extract. The technique used for soil salinization allowed obtaining satisfactorily accurate EC values. KEYWORDS: salinity, electric conductivity, fertirrigation

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