Morphophysiological biometry and grain  production in cowpea under different phosphorus levels

Bezerra, Antonio Aécio de Carvalho; Costa Filho, Raimundo Soares da; Oliveira, Simone Raquel Mendes de; Freire Filho, Francisco Rodrigues

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dc.creator	Bezerra, Antonio Aécio de Carvalho
dc.creator	Costa Filho, Raimundo Soares da
dc.creator	Oliveira, Simone Raquel Mendes de
dc.creator	Freire Filho, Francisco Rodrigues
dc.date	2018-08-01
dc.date.accessioned	2023-03-30T19:35:04Z
dc.date.available	2023-03-30T19:35:04Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/2398
dc.identifier	10.14295/cs.v9i2.2398
dc.identifier.uri	https://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/246752
dc.description	In tropical and semi-arid regions of Brazil, phosphorus is one of the most limiting elements of cowpea productivity. The aim of this study was to assess the effects of applying five phosphorus doses in the soil on morpho-physiological and production components in three improved cultivars of cowpea. The experiment was carried out at the São Fernando farm located in José de Freitas, PI, Brazil, in a Plinthosol with a low phosphorus content. The experimental design was complete randomized block design with four replications in a 5 × 3 factorial scheme consisting of five phosphorus doses (0, 60, 120, 180, and 240 kg P2O5 ha−1) and three improved cowpea cultivars (BRS Guariba, BRS Tumucumaque, and BRS Cauamé). No interaction was observed between cultivars and phosphorus doses for any of the assessed variables. The cultivar BRS Tumucumaque showed the highest value for one-hundred-grain weight (21.0 g) and, together with BRS Guariba, the highest value of pod length. An increment was observed in growth (stem diameter, main branch length, leaf area, and shoot dry matter) and production characteristics (number of pods per plant, number of grains per pod, one-hundred-grain weight, and grain production per plant) in response to increases in phosphorus doses. The dose of 183.1 kg P2O5 ha−1 provided the maximum technical grain yield, estimated at 2,023.3 kg ha−1.	en-US
dc.description	In tropical and semi-arid regions of Brazil, phosphorus is one of the most limiting elements of cowpea productivity. The aim of this study was to assess the effects of applying five phosphorus doses in the soil on morpho-physiological and production components in three improved cultivars of cowpea. The experiment was carried out at the São Fernando farm located in José de Freitas, PI, Brazil, in a Plinthosol with a low phosphorus content. The experimental design was complete randomized block design with four replications in a 5 × 3 factorial scheme consisting of five phosphorus doses (0, 60, 120, 180, and 240 kg P2O5 ha−1) and three improved cowpea cultivars (BRS Guariba, BRS Tumucumaque, and BRS Cauamé). No interaction was observed between cultivars and phosphorus doses for any of the assessed variables. The cultivar BRS Tumucumaque showed the highest value for one-hundred-grain weight (21.0 g) and, together with BRS Guariba, the highest value of pod length. An increment was observed in growth (stem diameter, main branch length, leaf area, and shoot dry matter) and production characteristics (number of pods per plant, number of grains per pod, one-hundred-grain weight, and grain production per plant) in response to increases in phosphorus doses. The dose of 183.1 kg P2O5 ha−1 provided the maximum technical grain yield, estimated at 2,023.3 kg ha−1.	pt-BR
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/2398/556
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2398/733
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2398/734
dc.rights	Copyright (c) 2018 Antonio Aécio de Carvalho Bezerra, Raimundo Soares da Costa Filho, Simone Raquel Mendes de Oliveira, Francisco Rodrigues Freire Filho	en-US
dc.source	Comunicata Scientiae; Vol. 9 No. 2 (2018); 275-281	en-US
dc.source	Comunicata Scientiae; v. 9 n. 2 (2018); 275-281	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	Vigna unguiculata	en-US
dc.subject	fertilization	en-US
dc.subject	growth	en-US
dc.subject	grain yield	en-US
dc.subject	Vigna unguiculata	pt-BR
dc.subject	fertilization	pt-BR
dc.subject	growth	pt-BR
dc.subject	grain yield	pt-BR
dc.title	Morphophysiological biometry and grain production in cowpea under different phosphorus levels	en-US
dc.title	Morphophysiological biometry and grain production in cowpea under different phosphorus levels	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	Artigo científico	pt-BR