Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662023000100026 |
Resumo: | ABSTRACT Salinity caused by excess salts in soil solutions is one of the most limiting environmental stresses in agriculture worldwide. In this scenario, among strategies that favor the expression of the genetic potential of plants, the use of biostimulants stands out. The objective of this study was to evaluate the influence of a seaweed-based biostimulant on growth, forage production, gas exchange, and accumulation of sodium and potassium ions in pangolão grass (Digitaria pentzii) under saline stress. The experiment was conducted from March to July 2019 using a randomized block design, in a 2 × 3 factorial scheme with two concentrations of biostimulant (0 and 8 mL L-1) and three electrical conductivities of irrigation water (0.03, 2 and 4 dS m-1), with four replicates. The accumulation of 50 µmol g-1 of sodium in leaves corresponded to a reduction of 0.3 g of dry matter in the leaf blade production per plot. The biostimulant did not influence the structural characteristics, phytomass accumulation, or stomatal conductance of the pangolão grass, regardless of salinity. At the level of 4 dS m-1 in irrigation water, the ionic stress toxicity due to the accumulation of salts in the aerial part of pangolão grass was more severe. This is the first evidence of the “moderate” salinity tolerance of pangolão grass in semi-arid regions. |
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Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stressabiotic stressphytomass accumulationsalinityseaweed extractsodium contentABSTRACT Salinity caused by excess salts in soil solutions is one of the most limiting environmental stresses in agriculture worldwide. In this scenario, among strategies that favor the expression of the genetic potential of plants, the use of biostimulants stands out. The objective of this study was to evaluate the influence of a seaweed-based biostimulant on growth, forage production, gas exchange, and accumulation of sodium and potassium ions in pangolão grass (Digitaria pentzii) under saline stress. The experiment was conducted from March to July 2019 using a randomized block design, in a 2 × 3 factorial scheme with two concentrations of biostimulant (0 and 8 mL L-1) and three electrical conductivities of irrigation water (0.03, 2 and 4 dS m-1), with four replicates. The accumulation of 50 µmol g-1 of sodium in leaves corresponded to a reduction of 0.3 g of dry matter in the leaf blade production per plot. The biostimulant did not influence the structural characteristics, phytomass accumulation, or stomatal conductance of the pangolão grass, regardless of salinity. At the level of 4 dS m-1 in irrigation water, the ionic stress toxicity due to the accumulation of salts in the aerial part of pangolão grass was more severe. This is the first evidence of the “moderate” salinity tolerance of pangolão grass in semi-arid regions.Departamento de Engenharia Agrícola - UFCG2023-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662023000100026Revista Brasileira de Engenharia Agrícola e Ambiental v.27 n.1 2023reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v27n1p26-33info:eu-repo/semantics/openAccessLeite,Mauricio L. de M. V.Silva,Manuévely C. daSimões,Vicente J. L. P.Lucena,Leandro R. R. deSales,Aldo T.eng2022-08-18T00:00:00Zoai:scielo:S1415-43662023000100026Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2022-08-18T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress |
title |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress |
spellingShingle |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress Leite,Mauricio L. de M. V. abiotic stress phytomass accumulation salinity seaweed extract sodium content |
title_short |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress |
title_full |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress |
title_fullStr |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress |
title_full_unstemmed |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress |
title_sort |
Biostimulant use in pangolão grass Digitaria pentzii subjected to saline stress |
author |
Leite,Mauricio L. de M. V. |
author_facet |
Leite,Mauricio L. de M. V. Silva,Manuévely C. da Simões,Vicente J. L. P. Lucena,Leandro R. R. de Sales,Aldo T. |
author_role |
author |
author2 |
Silva,Manuévely C. da Simões,Vicente J. L. P. Lucena,Leandro R. R. de Sales,Aldo T. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Leite,Mauricio L. de M. V. Silva,Manuévely C. da Simões,Vicente J. L. P. Lucena,Leandro R. R. de Sales,Aldo T. |
dc.subject.por.fl_str_mv |
abiotic stress phytomass accumulation salinity seaweed extract sodium content |
topic |
abiotic stress phytomass accumulation salinity seaweed extract sodium content |
description |
ABSTRACT Salinity caused by excess salts in soil solutions is one of the most limiting environmental stresses in agriculture worldwide. In this scenario, among strategies that favor the expression of the genetic potential of plants, the use of biostimulants stands out. The objective of this study was to evaluate the influence of a seaweed-based biostimulant on growth, forage production, gas exchange, and accumulation of sodium and potassium ions in pangolão grass (Digitaria pentzii) under saline stress. The experiment was conducted from March to July 2019 using a randomized block design, in a 2 × 3 factorial scheme with two concentrations of biostimulant (0 and 8 mL L-1) and three electrical conductivities of irrigation water (0.03, 2 and 4 dS m-1), with four replicates. The accumulation of 50 µmol g-1 of sodium in leaves corresponded to a reduction of 0.3 g of dry matter in the leaf blade production per plot. The biostimulant did not influence the structural characteristics, phytomass accumulation, or stomatal conductance of the pangolão grass, regardless of salinity. At the level of 4 dS m-1 in irrigation water, the ionic stress toxicity due to the accumulation of salts in the aerial part of pangolão grass was more severe. This is the first evidence of the “moderate” salinity tolerance of pangolão grass in semi-arid regions. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-01-01 |
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=S1415-43662023000100026 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662023000100026 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v27n1p26-33 |
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 |
Departamento de Engenharia Agrícola - UFCG |
publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
dc.source.none.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental v.27 n.1 2023 reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online) instname:Universidade Federal de Campina Grande (UFCG) instacron:UFCG |
instname_str |
Universidade Federal de Campina Grande (UFCG) |
instacron_str |
UFCG |
institution |
UFCG |
reponame_str |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
collection |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG) |
repository.mail.fl_str_mv |
||agriambi@agriambi.com.br |
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1750297688703762432 |