Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis

Detalhes bibliográficos
Autor(a) principal: Silva,O. P. R.
Data de Publicação: 2022
Outros Autores: Oliveira,A. P., Cruz,J. M. F. L., Silva,L. D. R., Sousa,V. F. O., Farias,O. R., Nunes,J. C., Nascimento,I. R. S., Martins,J. V. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842022000100742
Resumo: Abstract This study aimed to evaluate yield, quality, nematode incidence, chlorophyll content, and primary foliar macronutrients of yam in response to nitrogen and potassium fertilization. A complete randomized block design was used in a factorial scheme (5 x 5), with five nitrogen (0; 60; 120; 180 and 240 kg ha-1 of N) and five potassium doses (0; 60; 120; 180 and 240 kg ha-1 of K2O), with four replicates. The mass, total and commercial productivity of tubers, starch content, ash, leaf N, P, and K content, chlorophyll, and nematode incidence were evaluated. The average mass of tubers obtained was 1.935 kg with doses of 133 kg ha-1 of N and 105 kg ha-1 of K2O. The dose of 178 kg ha-1 of N promoted maximum total tuber productivity (22.56 t ha-1). The doses of 132 kg ha-1 of N and 118 kg ha-1 of K2O resulted in maximum productivity of commercial tubers with 20.35 t ha-1. Leaf N and K, starch, and ash contents were within the standards for yam. The incidence of Meloidogyne, Scutellonema, and Pratylenchus reduced with the increasing simple effect doses of N and K2O. The maximum chlorophyll content was obtained at the dose of 240 kg ha-1 of N. The nitrogen and potassium interaction, despite the antagonistic effects on the accumulation of foliar P and starch, increased the productivity and average mass of commercial tubers, consequently ensuring the profitability of yam cultivation.
id IIE-1_b96e0f768a9340e2dd6aa26d27389b34
oai_identifier_str oai:scielo:S1519-69842022000100742
network_acronym_str IIE-1
network_name_str Brazilian Journal of Biology
repository_id_str
spelling Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensismineral nutritionnematodestuber qualityyamAbstract This study aimed to evaluate yield, quality, nematode incidence, chlorophyll content, and primary foliar macronutrients of yam in response to nitrogen and potassium fertilization. A complete randomized block design was used in a factorial scheme (5 x 5), with five nitrogen (0; 60; 120; 180 and 240 kg ha-1 of N) and five potassium doses (0; 60; 120; 180 and 240 kg ha-1 of K2O), with four replicates. The mass, total and commercial productivity of tubers, starch content, ash, leaf N, P, and K content, chlorophyll, and nematode incidence were evaluated. The average mass of tubers obtained was 1.935 kg with doses of 133 kg ha-1 of N and 105 kg ha-1 of K2O. The dose of 178 kg ha-1 of N promoted maximum total tuber productivity (22.56 t ha-1). The doses of 132 kg ha-1 of N and 118 kg ha-1 of K2O resulted in maximum productivity of commercial tubers with 20.35 t ha-1. Leaf N and K, starch, and ash contents were within the standards for yam. The incidence of Meloidogyne, Scutellonema, and Pratylenchus reduced with the increasing simple effect doses of N and K2O. The maximum chlorophyll content was obtained at the dose of 240 kg ha-1 of N. The nitrogen and potassium interaction, despite the antagonistic effects on the accumulation of foliar P and starch, increased the productivity and average mass of commercial tubers, consequently ensuring the profitability of yam cultivation.Instituto Internacional de Ecologia2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842022000100742Brazilian Journal of Biology v.82 2022reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.263916info:eu-repo/semantics/openAccessSilva,O. P. R.Oliveira,A. P.Cruz,J. M. F. L.Silva,L. D. R.Sousa,V. F. O.Farias,O. R.Nunes,J. C.Nascimento,I. R. S.Martins,J. V. S.eng2022-09-30T00:00:00Zoai:scielo:S1519-69842022000100742Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2022-09-30T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false
dc.title.none.fl_str_mv Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
title Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
spellingShingle Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
Silva,O. P. R.
mineral nutrition
nematodes
tuber quality
yam
title_short Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
title_full Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
title_fullStr Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
title_full_unstemmed Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
title_sort Nitrogen and potassium synergism influences the yield and quality of Dioscorea cayennensis
author Silva,O. P. R.
author_facet Silva,O. P. R.
Oliveira,A. P.
Cruz,J. M. F. L.
Silva,L. D. R.
Sousa,V. F. O.
Farias,O. R.
Nunes,J. C.
Nascimento,I. R. S.
Martins,J. V. S.
author_role author
author2 Oliveira,A. P.
Cruz,J. M. F. L.
Silva,L. D. R.
Sousa,V. F. O.
Farias,O. R.
Nunes,J. C.
Nascimento,I. R. S.
Martins,J. V. S.
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva,O. P. R.
Oliveira,A. P.
Cruz,J. M. F. L.
Silva,L. D. R.
Sousa,V. F. O.
Farias,O. R.
Nunes,J. C.
Nascimento,I. R. S.
Martins,J. V. S.
dc.subject.por.fl_str_mv mineral nutrition
nematodes
tuber quality
yam
topic mineral nutrition
nematodes
tuber quality
yam
description Abstract This study aimed to evaluate yield, quality, nematode incidence, chlorophyll content, and primary foliar macronutrients of yam in response to nitrogen and potassium fertilization. A complete randomized block design was used in a factorial scheme (5 x 5), with five nitrogen (0; 60; 120; 180 and 240 kg ha-1 of N) and five potassium doses (0; 60; 120; 180 and 240 kg ha-1 of K2O), with four replicates. The mass, total and commercial productivity of tubers, starch content, ash, leaf N, P, and K content, chlorophyll, and nematode incidence were evaluated. The average mass of tubers obtained was 1.935 kg with doses of 133 kg ha-1 of N and 105 kg ha-1 of K2O. The dose of 178 kg ha-1 of N promoted maximum total tuber productivity (22.56 t ha-1). The doses of 132 kg ha-1 of N and 118 kg ha-1 of K2O resulted in maximum productivity of commercial tubers with 20.35 t ha-1. Leaf N and K, starch, and ash contents were within the standards for yam. The incidence of Meloidogyne, Scutellonema, and Pratylenchus reduced with the increasing simple effect doses of N and K2O. The maximum chlorophyll content was obtained at the dose of 240 kg ha-1 of N. The nitrogen and potassium interaction, despite the antagonistic effects on the accumulation of foliar P and starch, increased the productivity and average mass of commercial tubers, consequently ensuring the profitability of yam cultivation.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842022000100742
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842022000100742
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1519-6984.263916
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Internacional de Ecologia
publisher.none.fl_str_mv Instituto Internacional de Ecologia
dc.source.none.fl_str_mv Brazilian Journal of Biology v.82 2022
reponame:Brazilian Journal of Biology
instname:Instituto Internacional de Ecologia (IIE)
instacron:IIE
instname_str Instituto Internacional de Ecologia (IIE)
instacron_str IIE
institution IIE
reponame_str Brazilian Journal of Biology
collection Brazilian Journal of Biology
repository.name.fl_str_mv Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)
repository.mail.fl_str_mv bjb@bjb.com.br||bjb@bjb.com.br
_version_ 1752129889374306304