Growth, gas exchange and photochemical efficiency of the cowpea bean under salt stress and phosphorus fertilization

Sá, Francisco Vanies da Silva; Ferreira Neto, Miguel; Lima, Yuri Bezerra de; Paiva, Emanoela Pereira de; Prata, Rômulo Costa; Lacerda, Claudivan Feitosa; Brito, Marcos Eric Baborsa

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dc.creator	Sá, Francisco Vanies da Silva
dc.creator	Ferreira Neto, Miguel
dc.creator	Lima, Yuri Bezerra de
dc.creator	Paiva, Emanoela Pereira de
dc.creator	Prata, Rômulo Costa
dc.creator	Lacerda, Claudivan Feitosa
dc.creator	Brito, Marcos Eric Baborsa
dc.date	2019-01-04
dc.date.accessioned	2023-03-30T19:35:11Z
dc.date.available	2023-03-30T19:35:11Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/2763
dc.identifier	10.14295/cs.v9i4.2763
dc.identifier.uri	https://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/246808
dc.description	Cowpea is widely cultivated in semiarid regions; however, these regions face serious problems with salinity of water and soil, thus constituting an abiotic stress that limits the development of this species. The objective of this study was to study the influence of phosphate fertilization on the morphophysiological components of cowpea plants irrigated with salinized water during the vegetative and reproductive phase. The research was carried out in a greenhouse from September to December 2015. A randomized complete block design with treatments arranged in a 5 x 3 factorial scheme with five replications was used. The factors consisted of the use of five levels of electrical conductivity of irrigation water: 0.5; 1.5; 2.5; 3.5 and 4.5 dS m-1 and three doses of phosphorus corresponding to 60%, 100% and 140% of the dose recommended for the culture that was 60 kg ha-1. The plants of cowpea cv. Paulistinha were cultivated in lysimeters with a capacity of 8 dm3. At 30 and 49 days after sowing, periods corresponding to the vegetative (V4) and reproductive (V8 / R1) phases of the culture were evaluated gas exchange, chlorophyll fluorescence and growth. The increase in the electrical conductivity of the water reduced the growth, the photochemical activity and the phytomass accumulation of the cowpea plants, independent of the phenological phase. The higher dose of simple superphosphate increased the growth and photosynthetic activity of cowpea, mainly in the reproductive phase; Independent of the salinity of irrigation water.	en-US
dc.description	Cowpea is widely cultivated in semiarid regions; however, these regions face serious problems with salinity of water and soil, thus constituting an abiotic stress that limits the development of this species. The objective of this study was to study the influence of phosphate fertilization on the morphophysiological components of cowpea plants irrigated with salinized water during the vegetative and reproductive phase. The research was carried out in a greenhouse from September to December 2015. A randomized complete block design with treatments arranged in a 5 x 3 factorial scheme with five replications was used. The factors consisted of the use of five levels of electrical conductivity of irrigation water: 0.5; 1.5; 2.5; 3.5 and 4.5 dS m-1 and three doses of phosphorus corresponding to 60%, 100% and 140% of the dose recommended for the culture that was 60 kg ha-1. The plants of cowpea cv. Paulistinha were cultivated in lysimeters with a capacity of 8 dm3. At 30 and 49 days after sowing, periods corresponding to the vegetative (V4) and reproductive (V8 / R1) phases of the culture were evaluated gas exchange, chlorophyll fluorescence and growth. The increase in the electrical conductivity of the water reduced the growth, the photochemical activity and the phytomass accumulation of the cowpea plants, independent of the phenological phase. The higher dose of simple superphosphate increased the growth and photosynthetic activity of cowpea, mainly in the reproductive phase; Independent of the salinity of irrigation water.	pt-BR
dc.format	application/pdf
dc.format	application/vnd.openxmlformats-officedocument.wordprocessingml.document
dc.format	application/pdf
dc.format	application/pdf
dc.format	application/pdf
dc.language	eng
dc.language	por
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2763/604
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2763/710
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2763/750
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2763/751
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2763/782
dc.rights	Copyright (c) 2019 Francisco Vanies da Silva Sá, Miguel Ferreira Neto, Yuri Bezerra de Lima, Emanoela Pereira de Paiva, Rômulo Costa Prata, Claudivan Feitosa Lacerda, Marcos Eric Baborsa Brito	en-US
dc.source	Comunicata Scientiae; Vol. 9 No. 4 (2018); 668-679	en-US
dc.source	Comunicata Scientiae; v. 9 n. 4 (2018); 668-679	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.title	Growth, gas exchange and photochemical efficiency of the cowpea bean under salt stress and phosphorus fertilization	en-US
dc.title	Growth, gas exchange and photochemical efficiency of the cowpea bean under salt stress and phosphorus fertilization	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion