Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Anais da Academia Brasileira de Ciências (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703541 |
Resumo: | Abstract The sweet potato is an alternative energy source, but its sustainability depends on efficient water use. The objective of this study was to evaluate sweet potato morpho-physiological characteristics, and water use efficiency (WUE). Irrigation depths of 50, 75, 100, and 125% of crop evapotranspiration (ETc) were applied. The morpho-physiological indicators, WUE, leaf area index (LAI), leaf water potential, leaf temperature, and leaf chlorophyll index (ICF), were evaluated. The WUE of the sweet potato cultivars increased until the 75% water depth of the ETc. The LAI of these cultivars increased with irrigation depth, with higher values at 100% of the ETc. The leaf water potential of the two sweet potato cultivars was lowest with the lower irrigation depth. Leaf temperature was closer to that of ambient temperatures in treatments with greater irrigation depth. The increase of the WUE with the greater accumulation of dry biomass is due to greater CO2 diffusion by stomata. The reduction in the growth of these plants is due to water stress limiting stomatal conductance, transpiration, leaf growth (LAI) and chlorophyll concentration, proportional to soil moisture conditions. The functional relationship between soil moisture and growth is essential to optimize irrigation management at different growth stages. |
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Anais da Academia Brasileira de Ciências (Online) |
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Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depthIpomoea batatasirrigation managementleaf temperaturewater stresswater use efficiencyAbstract The sweet potato is an alternative energy source, but its sustainability depends on efficient water use. The objective of this study was to evaluate sweet potato morpho-physiological characteristics, and water use efficiency (WUE). Irrigation depths of 50, 75, 100, and 125% of crop evapotranspiration (ETc) were applied. The morpho-physiological indicators, WUE, leaf area index (LAI), leaf water potential, leaf temperature, and leaf chlorophyll index (ICF), were evaluated. The WUE of the sweet potato cultivars increased until the 75% water depth of the ETc. The LAI of these cultivars increased with irrigation depth, with higher values at 100% of the ETc. The leaf water potential of the two sweet potato cultivars was lowest with the lower irrigation depth. Leaf temperature was closer to that of ambient temperatures in treatments with greater irrigation depth. The increase of the WUE with the greater accumulation of dry biomass is due to greater CO2 diffusion by stomata. The reduction in the growth of these plants is due to water stress limiting stomatal conductance, transpiration, leaf growth (LAI) and chlorophyll concentration, proportional to soil moisture conditions. The functional relationship between soil moisture and growth is essential to optimize irrigation management at different growth stages.Academia Brasileira de Ciências2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703541Anais da Academia Brasileira de Ciências v.90 n.4 2018reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765201820170687info:eu-repo/semantics/openAccessDELAZARI,FÁBIO T.ASSIS,IGOR R.CABRERA,DIEGO F.V.FERREIRA,MARIANE G.DIAS,LUIZ E.RUEDA,ANGELICAZANUNCIO,JOSÉ C.SILVA,DERLY J.H.eng2019-01-15T00:00:00Zoai:scielo:S0001-37652018000703541Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2019-01-15T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false |
dc.title.none.fl_str_mv |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth |
title |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth |
spellingShingle |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth DELAZARI,FÁBIO T. Ipomoea batatas irrigation management leaf temperature water stress water use efficiency |
title_short |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth |
title_full |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth |
title_fullStr |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth |
title_full_unstemmed |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth |
title_sort |
Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth |
author |
DELAZARI,FÁBIO T. |
author_facet |
DELAZARI,FÁBIO T. ASSIS,IGOR R. CABRERA,DIEGO F.V. FERREIRA,MARIANE G. DIAS,LUIZ E. RUEDA,ANGELICA ZANUNCIO,JOSÉ C. SILVA,DERLY J.H. |
author_role |
author |
author2 |
ASSIS,IGOR R. CABRERA,DIEGO F.V. FERREIRA,MARIANE G. DIAS,LUIZ E. RUEDA,ANGELICA ZANUNCIO,JOSÉ C. SILVA,DERLY J.H. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
DELAZARI,FÁBIO T. ASSIS,IGOR R. CABRERA,DIEGO F.V. FERREIRA,MARIANE G. DIAS,LUIZ E. RUEDA,ANGELICA ZANUNCIO,JOSÉ C. SILVA,DERLY J.H. |
dc.subject.por.fl_str_mv |
Ipomoea batatas irrigation management leaf temperature water stress water use efficiency |
topic |
Ipomoea batatas irrigation management leaf temperature water stress water use efficiency |
description |
Abstract The sweet potato is an alternative energy source, but its sustainability depends on efficient water use. The objective of this study was to evaluate sweet potato morpho-physiological characteristics, and water use efficiency (WUE). Irrigation depths of 50, 75, 100, and 125% of crop evapotranspiration (ETc) were applied. The morpho-physiological indicators, WUE, leaf area index (LAI), leaf water potential, leaf temperature, and leaf chlorophyll index (ICF), were evaluated. The WUE of the sweet potato cultivars increased until the 75% water depth of the ETc. The LAI of these cultivars increased with irrigation depth, with higher values at 100% of the ETc. The leaf water potential of the two sweet potato cultivars was lowest with the lower irrigation depth. Leaf temperature was closer to that of ambient temperatures in treatments with greater irrigation depth. The increase of the WUE with the greater accumulation of dry biomass is due to greater CO2 diffusion by stomata. The reduction in the growth of these plants is due to water stress limiting stomatal conductance, transpiration, leaf growth (LAI) and chlorophyll concentration, proportional to soil moisture conditions. The functional relationship between soil moisture and growth is essential to optimize irrigation management at different growth stages. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 |
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=S0001-37652018000703541 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703541 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0001-3765201820170687 |
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 |
Academia Brasileira de Ciências |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências v.90 n.4 2018 reponame:Anais da Academia Brasileira de Ciências (Online) instname:Academia Brasileira de Ciências (ABC) instacron:ABC |
instname_str |
Academia Brasileira de Ciências (ABC) |
instacron_str |
ABC |
institution |
ABC |
reponame_str |
Anais da Academia Brasileira de Ciências (Online) |
collection |
Anais da Academia Brasileira de Ciências (Online) |
repository.name.fl_str_mv |
Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC) |
repository.mail.fl_str_mv |
||aabc@abc.org.br |
_version_ |
1754302866866044928 |