Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ornamental Horticulture (Campinas) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2447-536X2022000200266 |
Resumo: | Abstract In ornamental plants, the need to optimize nursery management has led to a tendency to decrease plug cell tray volume. However, in ornamental plants such as Impatiens walleriana, a lower plug cell volume can negatively affect leaf area expansion and biomass accumulation during the pre-transplant cycle. Because these results have been associated with a decrease in root growth, a floating system where roots come out of the plug cell has been proposed. The aim of this work was to describe pre-transplant biomass accumulation in plants from different plug cell volumes and the response to two propagation systems: media-based plug cell trays and floating system. The relationship found between plug cell volume and growth in both the media-based and floating systems is in agreement with that found in previous reports. With respect to the traditional media-based system, the floating system showed higher leaf area expansion, as a result of higher leaf appearance rate and relative leaf area expansion. Higher fresh and dry weight accumulation were estimated through the relative growth rate (RGR), with a strong relationship with the capacity of photo assimilate production (net assimilation rate) and RGR. However, all these changes cannot be exclusively associated with a higher root growth in the floating system. Our experiments validate the positive results in favor of the use of a floating system and also shows the physiological mechanisms involved. |
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Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nurseryabiotic stresspropagation systemstransplantAbstract In ornamental plants, the need to optimize nursery management has led to a tendency to decrease plug cell tray volume. However, in ornamental plants such as Impatiens walleriana, a lower plug cell volume can negatively affect leaf area expansion and biomass accumulation during the pre-transplant cycle. Because these results have been associated with a decrease in root growth, a floating system where roots come out of the plug cell has been proposed. The aim of this work was to describe pre-transplant biomass accumulation in plants from different plug cell volumes and the response to two propagation systems: media-based plug cell trays and floating system. The relationship found between plug cell volume and growth in both the media-based and floating systems is in agreement with that found in previous reports. With respect to the traditional media-based system, the floating system showed higher leaf area expansion, as a result of higher leaf appearance rate and relative leaf area expansion. Higher fresh and dry weight accumulation were estimated through the relative growth rate (RGR), with a strong relationship with the capacity of photo assimilate production (net assimilation rate) and RGR. However, all these changes cannot be exclusively associated with a higher root growth in the floating system. Our experiments validate the positive results in favor of the use of a floating system and also shows the physiological mechanisms involved.Sociedade Brasileira de Floricultura e Plantas Ornamentais2022-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2447-536X2022000200266Ornamental Horticulture v.28 n.2 2022reponame:Ornamental Horticulture (Campinas)instname:Sociedade Brasileira de Floricultura e Plantas Ornamentais (SBFPO)instacron:SBFPO10.1590/2447-536x.v28i2.2461info:eu-repo/semantics/openAccessSalinas,MáximoHakim,GuidoGandolfo,EstebanLojo,Juan DeGiardina,ErnestoBenedetto,Adalberto Dieng2022-07-04T00:00:00Zoai:scielo:S2447-536X2022000200266Revistahttp://ornamentalhorticulture.emnuvens.com.br/rbho/indexhttps://old.scielo.br/oai/scielo-oai.php||revista.ornamentalhorticulture@gmail.com2447-536X2447-536Xopendoar:2022-07-04T00:00Ornamental Horticulture (Campinas) - Sociedade Brasileira de Floricultura e Plantas Ornamentais (SBFPO)false |
dc.title.none.fl_str_mv |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery |
title |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery |
spellingShingle |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery Salinas,Máximo abiotic stress propagation systems transplant |
title_short |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery |
title_full |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery |
title_fullStr |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery |
title_full_unstemmed |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery |
title_sort |
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery |
author |
Salinas,Máximo |
author_facet |
Salinas,Máximo Hakim,Guido Gandolfo,Esteban Lojo,Juan De Giardina,Ernesto Benedetto,Adalberto Di |
author_role |
author |
author2 |
Hakim,Guido Gandolfo,Esteban Lojo,Juan De Giardina,Ernesto Benedetto,Adalberto Di |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Salinas,Máximo Hakim,Guido Gandolfo,Esteban Lojo,Juan De Giardina,Ernesto Benedetto,Adalberto Di |
dc.subject.por.fl_str_mv |
abiotic stress propagation systems transplant |
topic |
abiotic stress propagation systems transplant |
description |
Abstract In ornamental plants, the need to optimize nursery management has led to a tendency to decrease plug cell tray volume. However, in ornamental plants such as Impatiens walleriana, a lower plug cell volume can negatively affect leaf area expansion and biomass accumulation during the pre-transplant cycle. Because these results have been associated with a decrease in root growth, a floating system where roots come out of the plug cell has been proposed. The aim of this work was to describe pre-transplant biomass accumulation in plants from different plug cell volumes and the response to two propagation systems: media-based plug cell trays and floating system. The relationship found between plug cell volume and growth in both the media-based and floating systems is in agreement with that found in previous reports. With respect to the traditional media-based system, the floating system showed higher leaf area expansion, as a result of higher leaf appearance rate and relative leaf area expansion. Higher fresh and dry weight accumulation were estimated through the relative growth rate (RGR), with a strong relationship with the capacity of photo assimilate production (net assimilation rate) and RGR. However, all these changes cannot be exclusively associated with a higher root growth in the floating system. Our experiments validate the positive results in favor of the use of a floating system and also shows the physiological mechanisms involved. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-01 |
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=S2447-536X2022000200266 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2447-536X2022000200266 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2447-536x.v28i2.2461 |
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 |
Sociedade Brasileira de Floricultura e Plantas Ornamentais |
publisher.none.fl_str_mv |
Sociedade Brasileira de Floricultura e Plantas Ornamentais |
dc.source.none.fl_str_mv |
Ornamental Horticulture v.28 n.2 2022 reponame:Ornamental Horticulture (Campinas) instname:Sociedade Brasileira de Floricultura e Plantas Ornamentais (SBFPO) instacron:SBFPO |
instname_str |
Sociedade Brasileira de Floricultura e Plantas Ornamentais (SBFPO) |
instacron_str |
SBFPO |
institution |
SBFPO |
reponame_str |
Ornamental Horticulture (Campinas) |
collection |
Ornamental Horticulture (Campinas) |
repository.name.fl_str_mv |
Ornamental Horticulture (Campinas) - Sociedade Brasileira de Floricultura e Plantas Ornamentais (SBFPO) |
repository.mail.fl_str_mv |
||revista.ornamentalhorticulture@gmail.com |
_version_ |
1754734901060435968 |