Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601064 |
Resumo: | ABSTRACT: In this study, it was evaluated the effect of shade on forage yield, rate of CO2 assimilation, and the quality of annual ryegrass ( Lolium multiflorum L.) cv. 'BRS Ponteio' and black oat ( Avena strigosa Schreb) cv. 'IAPAR 61', grown under three shading conditions (0%, 25%, and 50% shade) using slatted wooden structures. The experimental design was completely randomized with four replications. Slatted structures were efficient in simulating the proposed shading conditions. Shading plants significantly decreased forage yield and CO2 assimilation by both species. Ryegrass cv. 'BRS Ponteio' performed better under shade, with higher forage production under all shading conditions. Rate of CO2 assimilation was reduced by 13 and 22 percentage points compared to the same species grown in the open field (0% shade), under 25% and 50% shade, respectively. These shading conditions did not affect crude protein (CP) content, neutral detergent fiber (NDF) concentration, or the leaf:stem (L:S) ratio compared to those grown in the open field. Between the species evaluated, ryegrass had the greatest potential for use as forage in a silvopastoral system. |
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Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditionsgrasslight restrictionphotosynthesissilvopastoral systemABSTRACT: In this study, it was evaluated the effect of shade on forage yield, rate of CO2 assimilation, and the quality of annual ryegrass ( Lolium multiflorum L.) cv. 'BRS Ponteio' and black oat ( Avena strigosa Schreb) cv. 'IAPAR 61', grown under three shading conditions (0%, 25%, and 50% shade) using slatted wooden structures. The experimental design was completely randomized with four replications. Slatted structures were efficient in simulating the proposed shading conditions. Shading plants significantly decreased forage yield and CO2 assimilation by both species. Ryegrass cv. 'BRS Ponteio' performed better under shade, with higher forage production under all shading conditions. Rate of CO2 assimilation was reduced by 13 and 22 percentage points compared to the same species grown in the open field (0% shade), under 25% and 50% shade, respectively. These shading conditions did not affect crude protein (CP) content, neutral detergent fiber (NDF) concentration, or the leaf:stem (L:S) ratio compared to those grown in the open field. Between the species evaluated, ryegrass had the greatest potential for use as forage in a silvopastoral system.Universidade Federal de Santa Maria2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601064Ciência Rural v.46 n.6 2016reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20141779info:eu-repo/semantics/openAccessSoares,André BrugnaraBernardon,AngelaAiolfi,Ricardo Beffarteng2016-05-03T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions |
title |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions |
spellingShingle |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions Soares,André Brugnara grass light restriction photosynthesis silvopastoral system |
title_short |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions |
title_full |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions |
title_fullStr |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions |
title_full_unstemmed |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions |
title_sort |
Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions |
author |
Soares,André Brugnara |
author_facet |
Soares,André Brugnara Bernardon,Angela Aiolfi,Ricardo Beffart |
author_role |
author |
author2 |
Bernardon,Angela Aiolfi,Ricardo Beffart |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Soares,André Brugnara Bernardon,Angela Aiolfi,Ricardo Beffart |
dc.subject.por.fl_str_mv |
grass light restriction photosynthesis silvopastoral system |
topic |
grass light restriction photosynthesis silvopastoral system |
description |
ABSTRACT: In this study, it was evaluated the effect of shade on forage yield, rate of CO2 assimilation, and the quality of annual ryegrass ( Lolium multiflorum L.) cv. 'BRS Ponteio' and black oat ( Avena strigosa Schreb) cv. 'IAPAR 61', grown under three shading conditions (0%, 25%, and 50% shade) using slatted wooden structures. The experimental design was completely randomized with four replications. Slatted structures were efficient in simulating the proposed shading conditions. Shading plants significantly decreased forage yield and CO2 assimilation by both species. Ryegrass cv. 'BRS Ponteio' performed better under shade, with higher forage production under all shading conditions. Rate of CO2 assimilation was reduced by 13 and 22 percentage points compared to the same species grown in the open field (0% shade), under 25% and 50% shade, respectively. These shading conditions did not affect crude protein (CP) content, neutral detergent fiber (NDF) concentration, or the leaf:stem (L:S) ratio compared to those grown in the open field. Between the species evaluated, ryegrass had the greatest potential for use as forage in a silvopastoral system. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-06-01 |
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=S0103-84782016000601064 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601064 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20141779 |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.46 n.6 2016 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140550395625472 |