Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/30115 |
Resumo: | The roots of highbush blueberry are sensitive to high temperatures and tend to grow poorly in warm soils or warm soilless media. Three experiments were conducted to evaluate strategies for reducing temperatures in the root zone in Évora, Portugal, where soil can reach temperatures > 45 °C. The first experiment was conducted in a small planting of ‘Ozarkblue’ blueberry. Treatments included bare soil, a 10-cm-deep layer of aged pine bark mulch, and black, green, and white geotextile landscape fabric. Bark mulch and green landscape fabric resulted in the lowest mid-day soil temperatures among the treatments, which improved canopy development and survival of the plants during establishment. White geotextile fabric also reduced soil temperature but resulted in a considerable amount of weed growth under the fabric. The second experiment was likewise conducted on ‘Ozarkblue’, but, in this case, the plants were grown in 40-L pots filled with a soilless mix of three parts peat, two parts pine bark, and one part humus, by volume. Treatments included black pots and black pots covered with white geotextile landscape fabric. After a year, canopy volume of the plants was greater in black pots than in white pots; however, yield was not affected by pot color. The third experiment was conducted in a 2-year-old planting of ‘Legacy’ blueberry. Treatments included no shade and 60% green shade netting. The netting had no effect on soil temperature in the root zone as a result of the fact that 1) the canopy of plants intercepted the majority of the radiation at midday and 2) frequent irrigation mitigated changes in soil temperature. On the basis of these results, bark mulch and green landscape fabric appear to be the best options for reducing temperatures in the root zone of blueberry in warm climates. |
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Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climatesVaccinium corymbosumcontainer colormaximal soil temperatureweed matcor do vasorede de sombreamentotemperatura máxima do solotela baseThe roots of highbush blueberry are sensitive to high temperatures and tend to grow poorly in warm soils or warm soilless media. Three experiments were conducted to evaluate strategies for reducing temperatures in the root zone in Évora, Portugal, where soil can reach temperatures > 45 °C. The first experiment was conducted in a small planting of ‘Ozarkblue’ blueberry. Treatments included bare soil, a 10-cm-deep layer of aged pine bark mulch, and black, green, and white geotextile landscape fabric. Bark mulch and green landscape fabric resulted in the lowest mid-day soil temperatures among the treatments, which improved canopy development and survival of the plants during establishment. White geotextile fabric also reduced soil temperature but resulted in a considerable amount of weed growth under the fabric. The second experiment was likewise conducted on ‘Ozarkblue’, but, in this case, the plants were grown in 40-L pots filled with a soilless mix of three parts peat, two parts pine bark, and one part humus, by volume. Treatments included black pots and black pots covered with white geotextile landscape fabric. After a year, canopy volume of the plants was greater in black pots than in white pots; however, yield was not affected by pot color. The third experiment was conducted in a 2-year-old planting of ‘Legacy’ blueberry. Treatments included no shade and 60% green shade netting. The netting had no effect on soil temperature in the root zone as a result of the fact that 1) the canopy of plants intercepted the majority of the radiation at midday and 2) frequent irrigation mitigated changes in soil temperature. On the basis of these results, bark mulch and green landscape fabric appear to be the best options for reducing temperatures in the root zone of blueberry in warm climates.ISHS- XII International Vaccinium Symposium2021-09-07T14:23:04Z2021-09-072021-08-31T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10174/30115http://hdl.handle.net/10174/30115pornaonaosimMEDrmam@uevora.ptndmmsc@uevora.pt582Machado, RuiBryla, DavidCorreia, Manuelainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:27:49Zoai:dspace.uevora.pt:10174/30115Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:19:38.442512Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates |
title |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates |
spellingShingle |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates Machado, Rui Vaccinium corymbosum container color maximal soil temperature weed mat cor do vaso rede de sombreamento temperatura máxima do solo tela base |
title_short |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates |
title_full |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates |
title_fullStr |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates |
title_full_unstemmed |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates |
title_sort |
Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates |
author |
Machado, Rui |
author_facet |
Machado, Rui Bryla, David Correia, Manuela |
author_role |
author |
author2 |
Bryla, David Correia, Manuela |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Machado, Rui Bryla, David Correia, Manuela |
dc.subject.por.fl_str_mv |
Vaccinium corymbosum container color maximal soil temperature weed mat cor do vaso rede de sombreamento temperatura máxima do solo tela base |
topic |
Vaccinium corymbosum container color maximal soil temperature weed mat cor do vaso rede de sombreamento temperatura máxima do solo tela base |
description |
The roots of highbush blueberry are sensitive to high temperatures and tend to grow poorly in warm soils or warm soilless media. Three experiments were conducted to evaluate strategies for reducing temperatures in the root zone in Évora, Portugal, where soil can reach temperatures > 45 °C. The first experiment was conducted in a small planting of ‘Ozarkblue’ blueberry. Treatments included bare soil, a 10-cm-deep layer of aged pine bark mulch, and black, green, and white geotextile landscape fabric. Bark mulch and green landscape fabric resulted in the lowest mid-day soil temperatures among the treatments, which improved canopy development and survival of the plants during establishment. White geotextile fabric also reduced soil temperature but resulted in a considerable amount of weed growth under the fabric. The second experiment was likewise conducted on ‘Ozarkblue’, but, in this case, the plants were grown in 40-L pots filled with a soilless mix of three parts peat, two parts pine bark, and one part humus, by volume. Treatments included black pots and black pots covered with white geotextile landscape fabric. After a year, canopy volume of the plants was greater in black pots than in white pots; however, yield was not affected by pot color. The third experiment was conducted in a 2-year-old planting of ‘Legacy’ blueberry. Treatments included no shade and 60% green shade netting. The netting had no effect on soil temperature in the root zone as a result of the fact that 1) the canopy of plants intercepted the majority of the radiation at midday and 2) frequent irrigation mitigated changes in soil temperature. On the basis of these results, bark mulch and green landscape fabric appear to be the best options for reducing temperatures in the root zone of blueberry in warm climates. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-07T14:23:04Z 2021-09-07 2021-08-31T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/30115 http://hdl.handle.net/10174/30115 |
url |
http://hdl.handle.net/10174/30115 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
nao nao sim MED rmam@uevora.pt nd mmsc@uevora.pt 582 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
ISHS- XII International Vaccinium Symposium |
publisher.none.fl_str_mv |
ISHS- XII International Vaccinium Symposium |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136677965332480 |