Produtividade e qualidade de melão sob manejo com água de salinidade crescente

Neto, Cícero Pereira Cordão Terceiro; Gheyi, Hans Raj; Medeiros, José Francismar de; Dias, Nildo da Silva; Campos, Marcos de Sousa

doi:10.1590/s1983-40632013000400007

Cited by 22 publications

(11 citation statements)

References 20 publications

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“…This way, results of this study are similar, in part, to the ones found with melon fruits (Gurgel et al, 2010;Terceiro Neto et al, 2013), which the increase of salinity levels promoted an increase in level of soluble solids of fruits. Similar behavior was evidenced in watermelon, where value of SS increased due to increase of salinity (Costa et al, 2013).…”

Section: Quality At Harvestsupporting

confidence: 88%

Impact of Salinity on Quality and Post-Harvest Conservation of Gherkin (Cucumis anguria L.)

Morais¹,

Aroucha²,

Oliveira³

et al. 2018

JAS

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Gherkin presents short shelf life. Its quality is influenced by cultivation's conditions which has scarce information in the literature. The objective of this study was to evaluate the impact of salinity on quality and post-harvest conservation of gherkin. For this, an experiment was carried out in a randomized block design, with treatments arranged in a 2 × 4 factorial scheme (two cultivars, 'Do Norte' and 'Liso Gibão' and four salinity levels; 2.0, 3.5 and 5.0 dSm -1 ), with three replicates, with the experimental unit being represented by six plastic vessels with capacity of 10 liters, each one with one plant. Harvest was carried out 60 days after planting of seedlings and the following analyzes were proceeded: length, fruit diameter; soluble solids content (SS); titratable acidity (TA); SS/TA ratio; total sugar content; chlorophyll and total phenolic content. The highest yield ('Liso Gibão') allowed the storage of fruits, stored in trays covered with PVC, at 15±2 °C and 85±2% RH for 0, 3, and 6 days. Increase in saline solution reduced fruit length and diameter and increased pH, soluble solids and SS/TA ratio. The cultivar 'Liso Gibão' was superior to 'Do Norte' cultivar for the variables length, diameter, pH, total sugars and SS/TA ratio. The fruits of the 'Liso Gibão' mixer can be stored for six days without loss of quality. Fruits cultivated with saline solution of 2.0 dS m -1 presented higher acidity and chlorophyll content during storage, but reduced total sugars and pH in fruits of gherkin.

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Section: Quality At Harvestsupporting

confidence: 88%

Impact of Salinity on Quality and Post-Harvest Conservation of Gherkin (Cucumis anguria L.)

Morais¹,

Aroucha²,

Oliveira³

et al. 2018

JAS

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“…Losses in fruit yield and postharvest quality in plants grown under salt stress result from the negative effect of the osmotic potential of the soil solution, since the stress reduces water potential, reducing the absorption of water and nutrients by plants, as well as their photosynthetic capacity, due to factors such as dehydration of cell membranes, salt toxicity, reduction in CO 2 supply (closure of stomata), salinity-induced senescence and changes in enzymatic activity (TERCEIRO NETO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Quality of Fruits of West Indian Cherry Under Saline Water Irrigation and Phosphate Fertilization1

et al. 2020

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In the semiarid region of Northeastern Brazil due to the qualitative and quantitative scarcity of water resources, the use of saline water should be considered as an alternative to expand irrigated agriculture. However, the use of waters with high levels of salts depends on management practices that minimize deleterious effects on plants. In this context, the objective of this study was to evaluate the effects of irrigation with water of increasing salinity and fertilization with phosphorus on the postharvest physicochemical composition of fresh fruits of West Indian cherry, cv. 'BRS 366 Jaburu'. The research was carried out in a protected environment, in lysimeters with Neossolo Regolítico Psamitico Típico (Entisol) of clay loam texture, using a randomized block design, in a 5x2 factorial scheme with three replicates and one plant per plot, relative to five levels of irrigation water electrical conductivity (0.6; 1.4; 2.2; 3.0 and 3.8 dS m -1 ) and two phosphorus doses [100 and 140% of the recommendation of Musser. Increase in water salinity reduced fruit size and fresh mass formation, but increased soluble solids contents and titratable acidity in the pulp of West Indian cherry fruits. Phosphate fertilization, regardless of dose, stimulated the formation of fresh mass of West Indian cherry fruits. Water salinity inhibited the formation of ascorbic acid in West Indian cherry fruits, and the highest value was observed in plants irrigated with 0.6 dS m -1 water and fertilized with a dose of 100% of the recommendation of P 2 O 5 . QUALIDADE FISICO-QUIMICA DE FRUTOS DE ACEROLEIRA IRRIGADO COM ÁGUAS SALINAS E ADUBAÇÃO FOSFATADARESUMO -No semiárido do Nordeste brasileiro devido à escassez qualitativa e quantitativa dos recursos hidricos o uso de água salina deve ser considerado como uma alternativa para expandir a agricultura irrigada. Contudo, a utilização de águas com níveis elevados de sais depende de práticas de manejo que minimizem os efeitos deletérios sobre as plantas. Neste contexto, objetivou-se avaliar os efeitos da irrigação com água de salinidade crescente e adubação com fósforo na composição físico-química pós-colheita dos frutos in natura de aceroleira 'BRS 366 Jaburu'. A pesquisa foi realizada em ambiente protegido, em lisímetros com Neossolo Regolítico Psamitico Típico de textura franco-argilosa, utilizando-se o delineamento de blocos casualizados, em esquema fatorial 5x2 com três repetições e uma planta por parcela, relativo aos cinco níveis de condutividade elétrica da água de irrigação de 0,6; 1,4; 2,2; 3,0 e 3,8 dS m -1 e duas doses de fósforo de 100 e 140% da recomendação de Musser. O aumento da salinidade das águas reduziu o tamanho dos frutos e a formação de massa fresca, mas aumentou os teores de sólidos solúveis e acidez titulável da polpa dos frutos de aceroleira. A adubação fosfatada, independente da dose estimulou a formação de massa fresca de frutos de aceroleira. A salinidade das águas inibiu a formação de ácido ascórbico dos frutos de aceroleira sendo maior valor observado nas plantas ir...

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“…Neste contexto, vários pesquisadores desenvolveram estudos para avaliar uso de água salina na irrigação alternando-se o nível de salinidade de acordo com a fase da cultura, e a maioria dos estudos demonstraram a viabilidade deste manejo em diferentes espécies (LACERDA et al, 2009;COSTA et al, 2013;TERCEIRO NETO et al, 2013).…”

Section: Introductionunclassified

Qualidade Da Fibra Do Algodoeiro BRS Verde Irrigado Com Águas De Diferentes Níveis Salinos

Paiva

Gurgel

Oliveira

et al. 2018

R_I

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QUALIDADE DA FIBRA DO ALGODOEIRO BRS VERDE IRRIGADO COM ÁGUAS DE DIFERENTES NÍVEIS SALINOS FRANCISCO ITALO GOME PAIVA1; MARCELO TAVARES GURGEL2; FRANCISCO DE ASSIS DE OLIVEIRA3 ANDYGLEY FERNANDES MOTA4;LUCAS RAMOS DA COSTA 5; HERMINIO SABINO DE OLIVEIRA JUNIOR6 1Engenheiro Agrônomo, Mestrando em Manejo de solo e agua – UFERSA/RN, italo-gp@hotmail.com;2 Engenheiro Agrônomo, Prof. Doutor, Manejo solo e agua – UFERSA/RN, marcelo.tavares@ufersa.edu.br;3Engenheiro Agrônomo, Prof. Doutor, Manejo solo e agua – UFERSA/RN, thikaoamigao@ufersa.edu.br;4Engenheiro Agrônomo, Mestre, Doutorando, UFCG – Campina Grande/PB, andygley_fm@hotmail.com;5Engenheiro Agrônomo, Mestre, Doutorando – UFERSA/RN, lucas_ramosjp@hotmail.com;6Gestor Ambiental, Mestre – UFERSA/RN, herminiosabino@gmail.com. 1 RESUMO As fibras de algodão representam em torno de 80% das fibras utilizadas nas fiações brasileiras. Nesse contexto, o objetivo do presente estudo foi avaliar a qualidade da fibra do algodoeiro BRS verde, usando níveis de salinidade da água de irrigação. O experimento foi realizado em condições de campo na Fazenda Experimental Rafael Fernandes, de propriedade da Universidade Federal Rural do Semiárido–UFERSA no período 21/10/11 até 06/02/12. O delineamento experimental adotado foi em blocos casualizados com seis tratamentos e cinco repetições, totalizando 30 parcelas experimentais. Os tratamentos resultaram das combinações de três tipos de condutividade elétrica da água de irrigação (S1- 0,55; S2-2,16 e S3-3,53 dS m-1) de acordo com as fases de desenvolvimento da cultura (T1- S1S1S1; T2- S2S2S2; T3- S3S3S3; T4- S1S2S2; T5- S1S2S3 e T6- S1S3S3), sendo a primeira fase do semeio até 30 dias; a segunda fase inicia-se dos 31 aos 90 dias; e a terceira fase dos 91 a colheita. As variáveis analisadas foram: porcentagem de fibra, comprimento da fibra, uniformidade do comprimento, maturidade, resistência, índice micronaire, índice de fibras curtas, elongação de ruptura e índice de fiabilidade. No geral, não houve efeito da salinidade da água de irrigação sobre a qualidade de fibra do algodão BRS verde, exceto para a característica elongamento da ruptura (ELG). Deste modo, torna-se viável o uso de água com salinidade de (3,5 dS m-1) em todo o ciclo da cultura considerando as condições de realização do estudo. Palavras-chave: Gossypium hirsutum L.. Condutividade elétrica. Características tecnológicas da fibra. PAIVA,F.I.G.;GURGEL,M.T.;OLIVEIRA,F.A.;MOTA,A.F.;COSTA,L.R.;JUNIOR,H.S.EQUALITY OF COTTON FIBER BRS GREEN IRRIGATED WITH DIFFERENT SALT LEVELS 2 ABSTRACT Cotton fibers represent around 80% of the fibers used in spinning mills in Brazil. In this context, the aim of this study was to evaluate the quality of the cotton fiber BRS green, using salinity levels of irrigation water. The experiment was conducted under field condition sat the Experimental Farm Rafael Fernandes, owned by Federal Rural University of the semiarid – UFERSA the period 21/10/11 to 06/02/12. The treatments consisted of combinations of three types of electrical conductivity of irrigation water (S1- 0,55; S2-2,16 and S3-3,53 dS m-1) according to the development stages of culture T1- S1S1S1; T2- S2S2S2; T3- S3S3S3; T4- S1S2S2; T5- S1S2S3; T6- S1S3S3, the first phase being 30 days from the sowing; the second stage starts from 31 to 90 days; and the third phase of the 91 harvest. The variables analyzed were: fiber percentage, fiber length, length uniformity, maturity, strength, micronaire, short fiber index, elongation at break and reliability index. Overall, there was no effect of irrigation water salinity on the fiber quality of cotton BRS green, except for the elongation characteristic of rupture (ELG). Thus, it becomes feasible to use water with salinity (3,5 dS m-1) throughout the crop cycle considering the conditions of the study. Keywords: Gossypium hirsutum L.. Electrical conductivity. technological characteristics of the fiber.

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Produtividade e qualidade de melão sob manejo com água de salinidade crescente

Cited by 22 publications

References 20 publications

Impact of Salinity on Quality and Post-Harvest Conservation of Gherkin (Cucumis anguria L.)

Impact of Salinity on Quality and Post-Harvest Conservation of Gherkin (Cucumis anguria L.)

Physicochemical Quality of Fruits of West Indian Cherry Under Saline Water Irrigation and Phosphate Fertilization1

Qualidade Da Fibra Do Algodoeiro BRS Verde Irrigado Com Águas De Diferentes Níveis Salinos

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