Phosphorus doses alter the ionic homeostasis of cowpea irrigated with saline water

Sá, Francisco Vaniés da Silva; Silva, Ivan Eusébio da; Ferreira, Miguel; Lima, Yuri Bezerra de; Paiva, Emanoela Pereira de; Gheyi, Hans Raj

doi:10.1590/1807-1929/agriambi.v25n6p372-379

Cited by 9 publications

(9 citation statements)

References 21 publications

(22 reference statements)

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“…In the cowpea culture, Sá et al (2021) also observed a quadratic behavior in the concentration of Mg in the area, noting an increase up to the electrical conductivity of the water of 1.34 and 1.10 dS m -1 , with subsequent reductions up to the value of 4.5 dS m -1 .…”

Section: Resultsmentioning

confidence: 86%

Gas exchanges and mineral content of corn crops irrigated with saline water

et al. 2021

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Inferior quality water can be used by agricultural producers in arid and semi-arid regions due to the lower availability of good-quality water. Therefore, the objective was to identify the influence of irrigation with saline water on gas exchange and leaf contents in corn (Zea mays L.) crop. The work was conducted in the field, in the experimental area of the Experimental Farm of the University of International Integration of Afro-Brazilian Lusofonia (UNILAB), Redenção-CE. The experimental design used in the research was randomized blocks, with five treatments: 1.0; 2.0; 3.0; 4.0 and 5.0 dS m -1 and four repetitions. At 45 days after sowing (DAS) the gas exchange variables were evaluated: transpiration, stomatal conductance, photosynthesis, internal CO 2 concentration, water use efficiency and leaf temperature. And at 110 DAS the contents of N, P, K, Ca and Mg in plant leaves. The saline stress due to saltwater irrigation leads to a reduction in photosynthesis, stomatal conductance, internal CO 2 concentration and transpiration in field maize plants. Salt stress reduces the levels of N, P, K, Ca and Mg mineral elements in maize leaves.

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Section: Resultsmentioning

confidence: 86%

Gas exchanges and mineral content of corn crops irrigated with saline water

et al. 2021

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“…Thus, decreases in fruit size and weight were not due to poor fertilization and poor fruit formation, which are capable of reducing sink strength (fruit) [ 20 ]. However, the restricted availability of water and photoassimilates due to the osmotic and ionic salinity components limits root development, leaf growth and expansion (source), and water relations and photosynthesis [ 2 , 3 , 4 ].…”

Section: Discussionmentioning

confidence: 99%

“…Low rainfall and high temperatures characterize the Brazilian semi-arid region for most of the year and high evapotranspiration rates [ 1 ]. Along with these factors, soil salinization is prevalent, causing losses in crop yield and quality [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…Salinity is one of the main factors threatening agriculture and food security globally, mainly due to salts’ osmotic and ionic effects. These effects can interfere with cell stability and reduce plant water uptake, resulting in ion toxicity and changes in the cell’s physiological and metabolic processes [ 2 , 3 ]. Salt stress also alters hormone-regulated responses, limiting stomatal opening and photosynthesis [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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Production and Physiological Quality of Seeds of Mini Watermelon Grown in Substrates with a Saline Nutrient Solution Prepared with Reject Brine

Alves

Torres

Paiva

et al. 2022

Plants

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The economically profitable production of crops is related, among other factors, to seed quality, the production system, and the water used in irrigation or preparation of nutrient solutions. Therefore, the objective was to evaluate the phenology, production, and vigor of seeds of mini watermelons grown in saline nutrient solution and different substrates. In the fruit and seed production phase, the experiment occurred in a greenhouse with five electrical conductivities of water for nutrient solution preparation, ECw (0.5, 2.4, 4.0, 5.5, and 6.9 dS m−1), and two growing substrates (coconut fiber and sand). We evaluated the physiological quality of seeds previously produced under the five electrical conductivities of water and two substrates. High salinities for the hydroponic cultivation of the mini watermelon cultivar ‘Sugar Baby’ accelerated fruit maturation and crop cycle, decreasing fruit size. However, in both substrates, the seed production of mini watermelons, seed viability, and seed vigor occurred adequately with a reject brine of 6.9 dS m−1 in the hydroponic nutrient solution. The seed production of ‘Sugar Baby’ mini watermelons using reject brine in a hydroponic system with coconut fiber and sand substrates is viable in regions with water limitations.

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“…Según Araújo da Silva et al (2014), un elemento como el fósforo influye en el aumento del número de vainas y masa de los granos. Por ello, Sá et al (2021) afirman que solo es necesaria una dosis adecuada de fósforo para minimizar los efectos salinos en el frijol caupí. Ello puede explicar la existencia de un mayor número de semillas y vainas a concentraciones bajas de detergente, a diferencia de las concentraciones altas e, incluso, de la planta testigo, en vista de que el fósforo se encuentra presente en el detergente bajo la forma de fosfato (Araújo da Silva et al, 2014).…”

Section: Discussionunclassified

Evaluación Del Crecimiento Y Producción De Semillas De Vigna Unguiculata

Chero

Morales

2021

IBS

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La Vigna unguiculata o comúnmente llamada frijol caupí es una legumbre dela familia Fabaceae y un cultivo importante, capaz de garantizar la seguridad alimentaria y nutricional de millones de personas en países en vías de desarrollo. El objetivo de este estudio fue evaluar el crecimiento y la producción de semillas de Vigna unguiculata mediante la aplicación de cinco diferentes concentraciones de detergente. Para ello, se prepararon concentraciones de detergente a 0 ppm, 2000 ppm, 3000 ppm, 5000 ppm y un tratamiento de 2000 ppm proveniente del lavado de ropa. Dadas las distintas concentraciones de detergente con las que se regaron las plantas, estas presentaron un crecimiento desigual. Producto de este estudio, se observó que la mayor altura promedio obtenida fue de 35.1 cm con las concentraciones “A” y “E”, mientras que se consiguió la menor altura promedio en las plantas regadas con la concentración “C”, con 25.2 cm. Además, se observó que las concentraciones “A” y “D” produjeron la mayor cantidad de semillas, mientras que la concentración “C” produjo la menor cantidad de semillas con 251 en total, para un total de 2449 semillas. Se concluyó que el crecimiento de las plantas no presenta efectos considerables al utilizar agua con detergente a bajas concentraciones, incluso, si esta ha sido usada previamente en otras actividades; sin embargo, se observan efectos nocivos importantes si la concentración de detergente es alta.

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Phosphorus doses alter the ionic homeostasis of cowpea irrigated with saline water

Abstract: HIGHLIGHTS Irrigation using water with electrical conductivity above 2.5 dS m-1 is not adequate for ‘Paulistinha’ cowpea. Increment in phosphorus dose does not increase phosphorus content in cowpea plant. Under salt stress conditions, cowpea plants require lower doses of phosphorus.

Cited by 9 publications

References 21 publications

Gas exchanges and mineral content of corn crops irrigated with saline water

Gas exchanges and mineral content of corn crops irrigated with saline water

Production and Physiological Quality of Seeds of Mini Watermelon Grown in Substrates with a Saline Nutrient Solution Prepared with Reject Brine

Evaluación Del Crecimiento Y Producción De Semillas De Vigna Unguiculata

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