Cotton root volume and root dry matter as function of high soil bulk density and soil water stress
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://200.145.140.50/ojs1/viewarticle.php?id=369&layout=abstract http://hdl.handle.net/11449/70646 |
Resumo: | Soil compaction reduces root growth, affecting the yield, especially in the Southern Coastal Plain of the USA. Simulations of the root restricting layers in greenhouses are necessary to develop mechanisms which alleviate soil compaction problems. The selection of three distinct bulk densities based on the Standard Proctor Test is also an important factor to determine which bulk density restricts root penetration. This experiment was conducted to evaluate cotton (Gossypium hirsutum L.) root volume and root dry matter as a function of soil bulk density and water stress. Three levels of soil density (1.2, 1.4, and 1.6 g cm-3), and two levels of water content (70 and 90% of field capacity) were used. A completely randomized design with four replicates in a 3×2 factorial pattern was used. The results showed that mechanical impedance affected root volume positively with soil bulk density of 1.2 and 1.6 g cm-3, enhancing root growth (P>0.0064). Soil water content reduced root growth as root and shoot growth was higher at 70% field capacity than that at 90% field capacity. Shoot growth was not affected by the increase in soil bulk density and this result suggests that soil bulk density is not a good indicator for measuring mechanical impedance in some soils. |
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Cotton root volume and root dry matter as function of high soil bulk density and soil water stressRoot growthSoil densityWater stressbulk densitycottondry matterrootshoot growthsoil propertywater stressGossypium hirsutumSoil compaction reduces root growth, affecting the yield, especially in the Southern Coastal Plain of the USA. Simulations of the root restricting layers in greenhouses are necessary to develop mechanisms which alleviate soil compaction problems. The selection of three distinct bulk densities based on the Standard Proctor Test is also an important factor to determine which bulk density restricts root penetration. This experiment was conducted to evaluate cotton (Gossypium hirsutum L.) root volume and root dry matter as a function of soil bulk density and water stress. Three levels of soil density (1.2, 1.4, and 1.6 g cm-3), and two levels of water content (70 and 90% of field capacity) were used. A completely randomized design with four replicates in a 3×2 factorial pattern was used. The results showed that mechanical impedance affected root volume positively with soil bulk density of 1.2 and 1.6 g cm-3, enhancing root growth (P>0.0064). Soil water content reduced root growth as root and shoot growth was higher at 70% field capacity than that at 90% field capacity. Shoot growth was not affected by the increase in soil bulk density and this result suggests that soil bulk density is not a good indicator for measuring mechanical impedance in some soils.United States Department of Agriculture (USDA-ARS) National Soil Dynamics Laboratory, Auburn, ALRural Engineering Department School of Agronomic Sciences São Paulo State University, Botucatu, SPRural Engineering Department School of Agronomic Sciences São Paulo State University, Botucatu, SPNational Soil Dynamics LaboratoryUniversidade Estadual Paulista (Unesp)Duruoha, CharlesPiffer, Cassio Roberto [UNESP]Silva, Paulo Roberto Arbex [UNESP]2014-05-27T11:23:42Z2014-05-27T11:23:42Z2008-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article476-491application/pdfhttp://200.145.140.50/ojs1/viewarticle.php?id=369&layout=abstractIrriga, v. 13, n. 4, p. 476-491, 2008.1413-78951808-3765http://hdl.handle.net/11449/706462-s2.0-658491132652-s2.0-65849113265.pdf99943996673502490000-0003-2737-5788Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIrriga0,283info:eu-repo/semantics/openAccess2024-04-30T14:01:18Zoai:repositorio.unesp.br:11449/70646Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:59:54.056641Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress |
title |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress |
spellingShingle |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress Duruoha, Charles Root growth Soil density Water stress bulk density cotton dry matter root shoot growth soil property water stress Gossypium hirsutum |
title_short |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress |
title_full |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress |
title_fullStr |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress |
title_full_unstemmed |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress |
title_sort |
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress |
author |
Duruoha, Charles |
author_facet |
Duruoha, Charles Piffer, Cassio Roberto [UNESP] Silva, Paulo Roberto Arbex [UNESP] |
author_role |
author |
author2 |
Piffer, Cassio Roberto [UNESP] Silva, Paulo Roberto Arbex [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
National Soil Dynamics Laboratory Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Duruoha, Charles Piffer, Cassio Roberto [UNESP] Silva, Paulo Roberto Arbex [UNESP] |
dc.subject.por.fl_str_mv |
Root growth Soil density Water stress bulk density cotton dry matter root shoot growth soil property water stress Gossypium hirsutum |
topic |
Root growth Soil density Water stress bulk density cotton dry matter root shoot growth soil property water stress Gossypium hirsutum |
description |
Soil compaction reduces root growth, affecting the yield, especially in the Southern Coastal Plain of the USA. Simulations of the root restricting layers in greenhouses are necessary to develop mechanisms which alleviate soil compaction problems. The selection of three distinct bulk densities based on the Standard Proctor Test is also an important factor to determine which bulk density restricts root penetration. This experiment was conducted to evaluate cotton (Gossypium hirsutum L.) root volume and root dry matter as a function of soil bulk density and water stress. Three levels of soil density (1.2, 1.4, and 1.6 g cm-3), and two levels of water content (70 and 90% of field capacity) were used. A completely randomized design with four replicates in a 3×2 factorial pattern was used. The results showed that mechanical impedance affected root volume positively with soil bulk density of 1.2 and 1.6 g cm-3, enhancing root growth (P>0.0064). Soil water content reduced root growth as root and shoot growth was higher at 70% field capacity than that at 90% field capacity. Shoot growth was not affected by the increase in soil bulk density and this result suggests that soil bulk density is not a good indicator for measuring mechanical impedance in some soils. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-12-01 2014-05-27T11:23:42Z 2014-05-27T11:23:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://200.145.140.50/ojs1/viewarticle.php?id=369&layout=abstract Irriga, v. 13, n. 4, p. 476-491, 2008. 1413-7895 1808-3765 http://hdl.handle.net/11449/70646 2-s2.0-65849113265 2-s2.0-65849113265.pdf 9994399667350249 0000-0003-2737-5788 |
url |
http://200.145.140.50/ojs1/viewarticle.php?id=369&layout=abstract http://hdl.handle.net/11449/70646 |
identifier_str_mv |
Irriga, v. 13, n. 4, p. 476-491, 2008. 1413-7895 1808-3765 2-s2.0-65849113265 2-s2.0-65849113265.pdf 9994399667350249 0000-0003-2737-5788 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Irriga 0,283 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
476-491 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128883319373824 |