Produção De Maracujazeiro Amarelo No Solo Com Calcário E Potássio Sob Irrigação Com Água Salina

Cavalcante, Lourival Ferreira; Santos, Clodoaldo Júnior Oliveira; Holanda, José Simplício de; Neto, Antonio João de Lima; Souto, Antônio Gustavo de Luna; Dantas, Tony Andreson Guedes

doi:10.15809/irriga.2018v23n4p727-740

Cited by 7 publications

(5 citation statements)

References 11 publications

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“…At 150 (Figure 2B) and 210 DAP (Figure 2C), there was a similar response to that observed at 90 DAP, but a 150 DAP the mean values of leaf water potential are probably due to the occurrence of rains in the period (Figure 1), which leached much of the salts from the root zone. This situation is consistent with the claim of Cavalcante et al (2018), who concluded that the waters of the rainy season promoted the leaching of salts from the root environment of plants. The mean values observed for the treatment without leaching fraction at salinity levels of 0.5 and 8.0 dS m -1 were -0.47 and -0.78 MPa, respectively, with a reduction of 66.38%.…”

Section: Resultssupporting

confidence: 92%

Water potential, biochemical indicators and yield of sugarcane irrigated with brackish water and leaching

Neto

Silva

Morais

et al. 2020

Rev. bras. eng. agríc. ambient.

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Knowledge on the water relations and biochemical responses of plants has been pointed out as important for selecting genotypes that are tolerant to abiotic stresses, such as drought and salinity. Thus, the objective of this study was to evaluate the leaf water potential, enzymatic activity and yield of sugarcane (RB 92579) irrigated with brackish waters and leaching fractions. The study was conducted from November 2016 to November 2017 in Recife, PE, Brazil. The experimental design was completely randomized, in a 5 x 2 factorial scheme, with four repetitions. Treatments consisted of five irrigation water salinity (0.5; 2.0; 4.0; 6.0 and 8.0 dS m-1) and two leaching fractions (0 and 0.17), corresponding to 100 and 120% of crop evapotranspiration. The values of irrigation water salinity were obtained by adding NaCl and CaCl2 at molar proportion of 1:1 (Ca:Na) to water from the local supply (ECw = 0.5 dS m-1). Readings of leaf water potential (Ψw) were taken at predawn, and +3 leaves were collected for the determination of catalase and ascorbate peroxidase activity at 90, 150, 210 and 270 days after planting. Yield was determined at 365 days after planting. Increase in water salinity reduced leaf water potential and yield, and increased the activity of catalase and ascorbate peroxidase, and the leaching fraction of 0.17 was able to reduce the deleterious effects of salts on plants.

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Section: Resultssupporting

confidence: 92%

Water potential, biochemical indicators and yield of sugarcane irrigated with brackish water and leaching

Neto

Silva

Morais

et al. 2020

Rev. bras. eng. agríc. ambient.

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“…As mudas foram formadas de sementes oriundas de frutos colhidos em plantas de maracujazeiro amarelo (Passiflora edulis Sims) acesso Guinezinho, tradicionalmente cultivado nos municípios paraibanos de Cuité, Nova Floresta e Remígio (NASCIMENTO et al, 2015;AGUIAR et al, 2017) e nos municípios norte-rio-grandense de Coronel Ezequiel e Jaçanã (CAVALCANTE et al, 2018). Da semeadura ao transplantio, as mudas foram irrigadas com água sem restrição salina (condutividade elétrica -CEai = 0,3 dS m -1 e razão de adsorção de sódio -RAS = 0, 86 (mmol L -1 ) 1/2 ).…”

Section: Methodsunclassified

“…As plantas, nos períodos de aridez nos anos de 2013 e 2014, foram irrigadas diariamente com água salina de um poço tubular com profundidade de 64 m e Irriga, Botucatu, v. 25, n. 3, p. 549-561, julho-setembro, 2020 salinidade média nos respectivos períodos de 3,4 dS m -1 e razão de adsorção de sódio -RAS = 17,70 (mmol L -1 ) 1/2 e, portanto, de elevado risco de salinizar e sodificar o solo (AYERS; WESTCOT, 1999). Entretanto, esses elevados riscos são menos agressivos nos solos de textura arenosa (CAVALCANTE et al, 2018), ressaltandose que a utilização da água salina, nessas condições, se dá por ser a única fonte hídrica disponível para a irrigação na propriedade.…”

Section: Methodsunclassified

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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“…The passion fruit crop is important for medium and small farmers, with economic relevance and income generation well distributed throughout the year (FURLANETO et al, 2011;SANTOS et al, 2017). In recent decades, its cultivation has expanded in the semi-arid regions of the Northeast, especially in rural areas of the State of Paraíba (AGUIAR et al, 2017;CAVALCANTE et al, 2018a).…”

Section: Introductionmentioning

confidence: 99%

Physiological Aspects of Yellow Passion Fruit With Use of Hydrogel and Mulching

et al. 2022

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In the Brazilian semi-arid region, water deficit is one of the main factors that compromise the growth and productive yield of crops, including yellow passion fruit, due to the limitation of carbon assimilation by the photosynthetic activity of plants. Therefore, it is necessary to manage the soil with technologies that can reduce the loss of water in the soil and mitigate the effects of water deficit on yellow passion fruit plants cultivated under semi-arid conditions. The objective of this study was to evaluate the application of hydrogel doses and mulching to the soil on the physiological aspects of irrigated yellow passion fruit cultivation. The experiment was carried out in a randomized block design, in a 5 × 2 factorial scheme, referring to five doses of hydrogel (0.0, 0.5, 1.0, 1.5 and 2.0 g dm−3 of soil) in soil without and with mulching from signal grass (Brachiaria decumbens L.). The variables analyzed were chlorophyll indices, fluorescence (initial, maximum and variable) and gas exchange. The total chlorophyll index was increased with the application of 1.5 g dm−3 of hydrogel and the use of mulching; when applying hydrogel doses of 2.0 g dm−3 the photosynthetic rate of yellow passion fruit plants increased, whereas their transpiration rate increased with the use of mulching and doses of hydrogel; as a consequence, there was a reduction in water use efficiency.

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Produção De Maracujazeiro Amarelo No Solo Com Calcário E Potássio Sob Irrigação Com Água Salina

Cited by 7 publications

References 11 publications

Water potential, biochemical indicators and yield of sugarcane irrigated with brackish water and leaching

Water potential, biochemical indicators and yield of sugarcane irrigated with brackish water and leaching

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

Physiological Aspects of Yellow Passion Fruit With Use of Hydrogel and Mulching

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