Crescimento e fitomassa da beterraba sob irrigação suplementar com água de diferentes concentrações salinas

Santos, Daniella Pereira dos; Santos, Célia Silva dos; Silva, Patrícia Ferreira da; Pinheiro, Mírian Paula Medeiros André; Santos, Jandir Cruz dos

doi:10.1590/0034-737x201663040011

Cited by 15 publications

(23 citation statements)

References 14 publications

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“…Já para Santos et al (2016) estudando o crescimento e fitomassa da beterraba sob irrigação suplementar com água de diferentes concentrações salinas, observaram que a máxima altura foi obtida com 3,11 dS m -1 , o que corresponde a 12,8 cm aos 27 dias após aplicação dos tratamentos salinos, obtendo altura de planta inferior ao encontrado nesta pesquisa. Segundo Hassanli et al 2010, estudando a influência de métodos de irrigação e qualidade da água na cultura da beterraba, assim como, a ação dos manejos da fertirrigação nas características desta cultura, observaram que a beterraba é muito resistente ao estresse salino, pois apenas em elevados níveis de salinidade do solo podem apresentar alterações em suas características.…”

Section: Resultsunclassified

“…Para os níveis 3 e 4 de salinidade, observa-se um decréscimo na área foliar da planta (Figura 3.) De acordo com Santos et al (2016) o resultado da área foliar em função dos tratamentos salinos foi obtido com a salinidade de 2,85 dS m -1 que corresponde a 21, 4 cm 2 , estando a beterraba na fase de muda ainda, a partir desse ponto, verificou-se um decréscimo de 24% quando se compara S1 (1dS m -1 ) com S5 (5dS m -1 ).…”

Section: Resultsunclassified

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Manejo Da Irrigação Na Cultura Da Beterraba De Mesa Sob Condições Salinas Em Alagoas

Silva¹,

Silva²,

Santos³

et al. 2019

RBAI

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A água de qualidade, encontra-se cada vez mais escassa, buscando-se alternativas no uso de água na irrigação, utilizando, até mesmo, águas salinas. Objetivou-se avaliar a produtividade da cultura da beterraba em função de lâminas de irrigação e níveis de salinidade no Agreste de Alagoas. O experimento foi conduzido na área experimental do Campus de Arapiraca. Adotou-se o delineamento experimental em blocos ao acaso (DBC) em um esquema fatorial 4 x 3, em três blocos. Os tratamentos aplicados foram níveis de salinidade (S1= 0,12; S2 = 2,12; S3 = 4,12 e S4 = 6,12 dS m-1) e lâminas de irrigação (L1= 50, L2= 100 e L3= 150% da ETc). Analisou-se: altura de planta, número de folhas, matéria fresca da parte aérea, matéria seca da parte aérea, matéria fresca da raiz, matéria seca da raiz, índice de SPAD, índice de refração de solução, diâmetro da raiz e área foliar. Os dados foram tabulados e submetidos à análise de variância ANAVA, utilizando o software estatístico SISVAR. Houve efeito significativo para o tratamento salinidade na maioria das variáveis analisadas, não sendo observado efeito para o tratamento lâminas de água e nem para a interação entre os fatores. A salinidade de 3,5 dS m-1 , promoveu a máxima produção de 23,51 g planta-1 , já a produtividade máxima atingiu 35,26 t ha-1 com a mesma salinidade, a partir desse valor de salinidade ocorreu um decréscimo.

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Section: Resultsunclassified

Manejo Da Irrigação Na Cultura Da Beterraba De Mesa Sob Condições Salinas Em Alagoas

Silva¹,

Silva²,

Santos³

et al. 2019

RBAI

Self Cite

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“…The equation showed the following form (Jensen et al, 1990) adapted to the symbols used here (Equation 1). This method of determination of reference evapotranspiration has been very useful for the management of irrigation in pots, due to its practicality, since it uses easily available meteorological elements such as temperature and relative humidity in addition to knowing the area of the pot (Silva et al, 2016;Santos et al, 2016).…”

Section: Irrigation System Used and Managementmentioning

confidence: 99%

Water consumption of Beta vulgaris L. cultivated in greenhouse under fertigation and types of foundation fertilization

Silva¹,

Matos²,

Borges³

et al. 2018

Aust J Crop Sci

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The cultivation of table beet is being largely done in greenhouse. It is among 15 most cultivated crops in Brazil. The quantification of water consumption is relevant to meet water demand at different stages of crop development. Thus, the objective of this study was to evaluate the daily water consumption of table beet cv. Early Wonder in greenhouse under fertigation and different types of fertilization. The experiment was conducted in a greenhouse of Federal University of Campina Grande. Treatments consisted of five doses of nitrogen applied by fertigation (0, 0.7, 1.4, 2.1 and 2.8g per pot) and three types of crop establishment fertilization (earthworm humus; earthworm humus +NPK, and soil without fertilization as control), arranged in a 5 x 3 factor design with four repetitions. A digital hygrometer was used to measure temperature and relative humidity of the air. The reference evapotranspiration was estimated as recommended by Hargreaves and Samani. To meet the water requirement of crop, irrigation must be managed according to its developmental stage. The highest daily water consumption in these growing conditions was obtained in the third stage of development, at which the evapotranspiration of the crop exceeded the reference evapotranspiration. Fertilization with earthworm humus in greenhouse beet cultivation increased the efficiency of water use and can be used instead of chemical fertilization to meet the nutritional needs of the crop. The nitrogen dose of 2.8 g per pot, corresponding to 6.22 g of urea per plant, was the one that provided the highest water content in beet cultivation in greenhouse.

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“…The olericulture is directly affected by the amount of water in the soil because it is determinant in vegetable physiology due to its participation in every phase of the plant. Both water deficit and excess limit the yield and final quality of the product in most cultures (Sousa et al, 2004;Santos et al, 2016). Irrigation is the cultural treatment that most increases the production of vegetables.…”

Section: Introductionmentioning

confidence: 99%

Postharvest Quality of Beetroots Grown Under Different Irrigation Depths and Ascorbic Acid Doses

Gonçalves¹,

Silva²,

Filho³

et al. 2019

JAS

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Beetroot (Beta vulgaris L.) is a culture of great demand in Brazil due to its high nutritional value. However, water availability is a determining factor on its production. An alternative to reduce the damage caused by water stress is to apply organic solutes, such as ascorbic acid. The purpose hereof was to evaluate the postharvest quality of beetroots grown under different irrigation depths and ascorbic acid doses. The experiment was carried out in the Human, Social, and Agricultural Center’s Postharvest Physiology and Technology Laboratory of the Federal University of Paraíba, Bananeiras, Paraíba, Brazil, in a completely randomized design with five doses of ascorbic acid (0.00, 0.29, 1.00, 1.71, and 2.00 mM) and five irrigation depths (40.0%, 51.6%, 80.0%, 108.4%, and 120.0% of the evapotranspiration), combined according to each Box Central Compound experimental matrix, totaling nine treatments with five repetitions. The variables total soluble solids, electrical conductivity, hydrogenation potential, titratable acidity, total soluble solids and titratable acidity ratio, moisture, dry matter, and mineral matter were evaluated. The data were submitted for analysis of variance and polynomial regression. There was a significant interaction between the irrigation depths and the ascorbic acid doses in every variable, except for electrical conductivity and mineral matter. The postharvest characteristics of beetroots improved with applications of ascorbic acid doses in the thinner irrigation depths. The greatest dose of ascorbic acid (2 mM) in the thinner irrigation depth (40%) increases the postharvest quality of beet tuberous roots.

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Crescimento e fitomassa da beterraba sob irrigação suplementar com água de diferentes concentrações salinas

Cited by 15 publications

References 14 publications

Manejo Da Irrigação Na Cultura Da Beterraba De Mesa Sob Condições Salinas Em Alagoas

Manejo Da Irrigação Na Cultura Da Beterraba De Mesa Sob Condições Salinas Em Alagoas

Water consumption of Beta vulgaris L. cultivated in greenhouse under fertigation and types of foundation fertilization

Postharvest Quality of Beetroots Grown Under Different Irrigation Depths and Ascorbic Acid Doses

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