Effects of water salinity and organomineral fertilization on leaf composition and production in Passiflora edulis

Souza, José Thyago Aires; Nunes, Járisson Cavalcante; Cavalcante, Lourival Ferreira; Nunes, Juliete Araújo da Silva; Pereira, Walter Esfrain; Freire, José Lucínio de Oliveira

doi:10.1590/1807-1929/agriambi.v22n8p535-540

Cited by 18 publications

(28 citation statements)

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“…Nas regiões de clima semiárido, a irrigação é determinante para a produção contínua de frutas durante o ano, no entanto, a carência de recursos hídricos, em quantidade e qualidade, tem limitado o sistema de produção em áreas com potencial agrícola, sendo necessário em algumas localidades o uso de água salinas para irrigação (CAVALCANTE et al, 2012;AGUIAR et al, 2017), o que em muitos casos, promove efeitos negativos no crescimento, desenvolvimento, produção e qualidade dos frutos colhidos. Entretanto, mesmo sendo considerada uma cultura sensível à salinidade, com redução da produção para o uso de água de salinidade superior a 2 dS m -1 (AYERS; WESTCOT, 1999;CAVALCANTE et al, 2012), o maracujá em áreas semiáridas dos Estados da Paraíba e do Rio Grande do Norte tem sido irrigado com água de condutividade elétrica acima de 3 dS m -1 e obtido produtividades promissoras (SOUZA et al, 2018;MACÊDO et al, 2019). Para os respectivos autores, uma das justificativas para os bons rendimentos da cultura sob irrigação com águas de nível salino não tolerado, é a condição física do solo que possibilita o maior estado da energia da água do solo e a lixiviação dos sais pelas águas no período das chuvas.…”

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Arranjo Espacial E Poda Na Produção E Qualidade Química De Maracujá Irrigado Com Água Salina

Morais

Macêdo

Cavalcante

et al. 2020

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ARRANJO ESPACIAL E PODA NA PRODUÇÃO E QUALIDADE QUÍMICA DE MARACUJÁ IRRIGADO COM ÁGUA SALINA RAFAEL RAMOS MORAIS1; JOÃO PAULO SILVA MACÊDO2; LOURIVAL FERREIRA CAVALCANTE3; JACKSON TEIXEIRA LOBO1; ANTÔNIO GUSTAVO LUNA SOUTO1 E EVANDRO FRANKLIN MESQUITA4 1 Programa de pós-graduação em Agronomia, Departamento de Fitotecnia e Ciências Ambientais do Centro de Ciências Agrárias, Universidade Federal da Paraíba, Rodovia PB 079, SN, Km 12, 58.397-000, Areia, Paraíba, Brasil, agro.rafaelmorais@gmail.com; jacksonteixeira78@gmail.com, gusluso@hotmail.com. 2 Empresa Paraibana de Pesquisa, Extensão Rural e Regularização Fundiária, Rodovia BR 230, S/N, Km 13, Morada Nova, 58.108-502, Cabedelo, Paraíba, Brasil, jp_agro@hotmail.com. 3 Professor do Departamento de Solos e Engenharia Rural, Universidade Federal da Paraíba, Rodovia PB 079, S/N, Km 12, 58.397-000, Areia, Paraíba, Brasil, lofeca@cca.ufpb.br. 4 Professor do Centro de Ciências Humanas e Agrárias, Universidade Estadual da Paraíba, Sitio Cajueiro, S/N, Zona Rural, 58.884-000, Catolé do Rocha, Paraíba, Brasil, elmesquita4@uepb.edu.br. 1 RESUMO Um experimento foi desenvolvido no município de Coronel Ezequiel, Estado do Rio Grande do Norte, Brasil, para avaliar os efeitos da densidade de plantio e poda da haste principal em plantas de maracujazeiro amarelo, acesso Guinezinho, sob irrigação com água salina de 3,4 dS m-1. Os tratamentos, com distância de 2,0 m entre linhas, foram distribuídos em blocos ao acaso, com quatro repetições de 12 plantas por parcela, em esquema fatorial 4 × 2, correspondente as distâncias de 3, 6, 9 e 12 m entre plantas nas linhas com e sem poda da haste principal, ao atingir o sistema de sustentação. Os componentes avaliados foram número de frutos colhidos, produção por planta, produtividade e na polpa dos frutos, os valores de sólidos solúveis, acidez titulável, pH e a relação sólidos solúveis/ acidez titulável. A interação entre os fatores estudados exerceu efeitos significativos no número de frutos colhidos, produção por planta, teor de sólidos solúveis e acidez titulável. A produtividade foi influenciada pelos dois fatores de forma isolada. O pH da polpa respondeu apenas ao espaçamento entre plantas nas linhas e a relação SS/AT não foi influenciada por nenhuma das fontes de variação estudadas. O aumento das distâncias de plantio nas linhas promove ganho de produção por planta, mas reduz a produtividade. Plantas podadas na haste principal apresentam maior produtividade. A irrigação com água de qualidade restritiva à agricultura não inibiu a capacidade produtiva do maracujazeiro amarelo acesso Guinezinho e não prejudicou a qualidade química dos frutos. Palavras-chave: acesso Guinezinho, densidade de plantio, Passiflora edulis Sims. MORAIS, R. R.; MACÊDO, J. P. S.; CAVALCANTE, L. F.; LOBO, J. T.; SOUTO, A. G. L.; MESQUITA, E. F. SPATIAL ARRANGEMENT AND PRUNING IN THE PRODUCTION AND CHEMICAL QUALITY OF YELLOW PASSIONFRUIT IRRIGATED WITH SALINE WATER 2 ABSTRACT An experiment was carried out in Coronel Ezequiel municipality, Rio Grande do Norte State, Brazil, to evaluate the effects of planting density and pruning of the main stem on yellow passion fruit plants access Guinezinho under irrigation with saline water (3.4 dS m-1). The treatments, with inter-row distance of 2 m, were distributed in randomized blocks, with four replications of 12 plants per plot, in a 4 × 2 factorial scheme, corresponding to intra-row distances of 3, 6, 9 and 12 m for plants with and without pruned main stem, upon reaching the support system. The evaluated components were number of fruit harvested, production per plant, fruit yield and in the fruit pulp, the analyzed components were soluble solid content, titratable acidity, pH and soluble solid content/ titratable acidity ratio. The interaction between the factors studied significantly affected the number of fruit harvested, production per plant, solids content and titratable acidity. The fruit yield was influenced by the two isolated factors, but the pH of the pulp responded only to the intra-row plant spacing, and the solids content/ titratable acidity ratio was not influenced by any of the sources of variation studied. Increasing the distances intra-row raises the production per plant, but reduces fruit yield. Plants pruned on the main stem have higher fruit yield. Irrigation with restrictive water quality to agriculture did not inhibit the productive capacity of yellow passion fruit access Guinezinho and did not impair the chemical quality of the fruits. Keywords: Guinezinho access, planting density, Passiflora edulis Sims.

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Arranjo Espacial E Poda Na Produção E Qualidade Química De Maracujá Irrigado Com Água Salina

Morais

Macêdo

Cavalcante

et al. 2020

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“…S3) was calculated (Eq. [2]) using the crop coefficients ( K c , adjusted on the basis of salinity stress) of 0.2 (60 d after transplant), 0.4 (60–90 d after transplant), 0.8 (90–115 d after transplant), and 1.2 (flowering to harvest) (Allen et al, 1998, Souza et al, 2016, 2018):

{ET}_{normalc} = K_{normalc} \times {ET}_{0}

…”

Section: Methodsmentioning

confidence: 99%

Can Humic Substances Improve Soil Fertility under Salt Stress and Drought Conditions?

et al. 2019

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Semiarid soils may be poor in organic carbon, a necessary source of energy for soil microorganisms that affect plant growth. Although the addition of organic carbon may improve soil chemical characteristics, the concentration of humic compounds in the organic component may vary and affect soil chemical composition. We evaluated the effect of two sources of humic compounds on a dystrophic yellow Oxisol cultivated with passion fruit (Passiflora edulis Sims f. edulis) and irrigated with saline water during a severe drought in the Brazilian semiarid region. Soil fertility was evaluated during two seasons. A bovine biofertilizer and an organic commercial amendment (Humistar) were used as sources of humic compounds. Salinity resulted in reduced soil fertility, mainly during the lower rainfall period. The combination of humic substances and salinity increased soil salinity. Humistar, more concentrated in humic acid than fulvic acid, increased both acidity and salinity of the Oxisol under study during the lower rainfall period. Our results contradict the general idea that organic matter can mitigate the harmful effects of salts in semiarid soils because the addition of organic sources to the soil, mainly during a severe drought period, may reduce soil fertility. Although this response may depend on the concentration of humic acids in the amendment, our results suggest that the correction of soil chemistry with the application of either amendment to Oxisols under semiarid conditions, mainly during severe drought, is not economically feasible. Core Ideas Saline irrigation reduces the fertility of Oxisols, mainly in low‐rainfall periods. The combination of humic substances and salinity increased salinity of Oxisols. During low‐rainfall periods, humic substances reduced Oxisol fertility.

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“…The effects of salinity reflect on production losses. Souza et al [12] verified that the increase in the salinity of the irrigation water, of 0.35 and 4.0 dS m -1 reduced in 9% the fruit mass of the passion fruit plant. Dias et al [13], verified that the water salinity led to the inhibition of the pulp yield, but there are also registers of economically viable production under irrigation with water of average salinity (> 3.0 dS m -1 ) [14,15].…”

Section: Introductionmentioning

confidence: 96%

Yield and Physical Quality of the Yellow Passion Fruit under Spacing within Plants and Water Salinity

Macedo¹,

Cavalcante

Lobo

et al. 2019

JEAI

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Aims: The aim of this work was to evaluate the yield and the physical quality of the yellow passion fruit accession ‘Guinezinho’ as a function of the within-row plant spacing, with saline irrigation water in consecutive growing seasons. Study Design: The experiment was arranged in randomized blocks, with four replicates and 12 plants per parcel, in a 4 x 2 factorial arrangement, referring to the spacing in the planting lines of 3, 6, 9 and 12 m, and two consecutive growing seasons. Place and Duration of Study: The experiment was developed in the municipality of Coronel Ezequiel, Rio Grande do Norte state, Brazil, within the months of April 2013 and October 2014. Methodology: The seedings were transplanted in the spacings of 3, 6, 9 and 12 m, and distant 2 m within lines according to the treatments; they were conducted in a vertical shoot position (VSP) training system, and daily irrigated during the arid period with saline water (ECiw = 3.4 dS m-1). The following characteristics were evaluated: fruit yield, fruit mass, longitudinal and transversal fruit diameter, pulp yield, peel mass and peel thickness. Results: The interaction between spacing and growing season exercised a significant effect on the fruit yield, longitudinal fruit diameter, pulp yield, thickness and mass of the peel (P = .05). The variables transversal diameter and fruit mass only varied within the growing seasons (P = .05). The plants cultivated in the 3 m spacing were the most productive in the two seasons, with 23.7 and 36.3 t ha-1, in the first and second seasons, respectively. Conclusion: The highest yield of the yellow passion fruit accession ‘Guinezinho’ was obtained in the smaller plant spacing in the lines. Except for the pulp yield, the yield and physical quality of the fruits were superior in the second growing season. The irrigation with highly saline water, in this type of soil, did not compromise the productive ability of the passion fruit accession ‘Guinezinho’.

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Effects of water salinity and organomineral fertilization on leaf composition and production in Passiflora edulis

Cited by 18 publications

References 13 publications

Arranjo Espacial E Poda Na Produção E Qualidade Química De Maracujá Irrigado Com Água Salina

Arranjo Espacial E Poda Na Produção E Qualidade Química De Maracujá Irrigado Com Água Salina

Can Humic Substances Improve Soil Fertility under Salt Stress and Drought Conditions?

Yield and Physical Quality of the Yellow Passion Fruit under Spacing within Plants and Water Salinity

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