Chilling units and chilling hours for southern region of Brazil and Aomori in Japan
Main Author: | |
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Publication Date: | 2018 |
Other Authors: | , |
Format: | Article |
Language: | eng |
Source: | Revista Eletrônica Científica da Uergs |
Download full: | https://revista.uergs.edu.br/index.php/revuergs/article/view/1066 |
Summary: | The brazilian apple production are located in the southern region, with the best areas in altitudes ranging from 800 to 1400 m, with great variability in the number of Chilling Hours (CH) and Chilling Units (CU) in the different regions and years. The objective of this study was to compare CH equal or below 7.2°C and CU by the North Carolina Modified model in different regions of southern Brazil, comparing with Aomori region in Japan. In Brazil was used historical data of the CH and CU from 2000 to 2016 in the municipalities of Caçador (960 m), Videira (774 m), São Joaquim (1376 m), Fraiburgo (1038 m) and Vacaria (986 m). In Aomori (2.8 m) the historical data used was from 2000 to 2011. The results shows that in southern Brazil there is a variation in the number of CH between sites and years, being greater in the sites of higher altitude, with an average of 880 CH in São Joaquim and 411 CH in Videira. When compared the brazilian regions with Aomori, the japanese region have a greater CH accumulation. Once CU have the same behavior of CH in respect to altitudes, but shows a larger variability between years in the different regions of southern Brazil, is possible to affirm that the North Carolina Modified method is more accurate to quantify the chilling in regions with large temperature fluctuations in the autumn and winter, while for regions with low thermal amplitude, the model of CH presents a better adherence. |
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Chilling units and chilling hours for southern region of Brazil and Aomori in Japanclimate changetemperate fruit cropsappleThe brazilian apple production are located in the southern region, with the best areas in altitudes ranging from 800 to 1400 m, with great variability in the number of Chilling Hours (CH) and Chilling Units (CU) in the different regions and years. The objective of this study was to compare CH equal or below 7.2°C and CU by the North Carolina Modified model in different regions of southern Brazil, comparing with Aomori region in Japan. In Brazil was used historical data of the CH and CU from 2000 to 2016 in the municipalities of Caçador (960 m), Videira (774 m), São Joaquim (1376 m), Fraiburgo (1038 m) and Vacaria (986 m). In Aomori (2.8 m) the historical data used was from 2000 to 2011. The results shows that in southern Brazil there is a variation in the number of CH between sites and years, being greater in the sites of higher altitude, with an average of 880 CH in São Joaquim and 411 CH in Videira. When compared the brazilian regions with Aomori, the japanese region have a greater CH accumulation. Once CU have the same behavior of CH in respect to altitudes, but shows a larger variability between years in the different regions of southern Brazil, is possible to affirm that the North Carolina Modified method is more accurate to quantify the chilling in regions with large temperature fluctuations in the autumn and winter, while for regions with low thermal amplitude, the model of CH presents a better adherence.Uergs2018-04-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revista.uergs.edu.br/index.php/revuergs/article/view/106610.21674/2448-0479.41.91-106Revista Eletrônica Científica da UERGS ; v. 4 n. 1 (2018): RevUergs; 91-1062448-0479reponame:Revista Eletrônica Científica da Uergsinstname:Universidade Estadual do Rio Grande do Sul (UERGS)instacron:UERGSenghttps://revista.uergs.edu.br/index.php/revuergs/article/view/1066/280Copyright (c) 2018 Revista Eletrônica Científica da UERGSinfo:eu-repo/semantics/openAccessYOSHIKAWA, Eiji ReonardoPETRI, José LuizSEZERINO, André Amarildo2020-10-27T21:50:28Zoai:ojs.pkp.sfu.ca:article/1066Revistahttp://revista.uergs.edu.br/index.php/revuergs/indexPUBhttp://revista.uergs.edu.br/index.php/revuergs/oai||revista@uergs.edu.br2448-04792448-0479opendoar:2020-10-27T21:50:28Revista Eletrônica Científica da Uergs - Universidade Estadual do Rio Grande do Sul (UERGS)false |
dc.title.none.fl_str_mv |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan |
title |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan |
spellingShingle |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan YOSHIKAWA, Eiji Reonardo climate change temperate fruit crops apple |
title_short |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan |
title_full |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan |
title_fullStr |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan |
title_full_unstemmed |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan |
title_sort |
Chilling units and chilling hours for southern region of Brazil and Aomori in Japan |
author |
YOSHIKAWA, Eiji Reonardo |
author_facet |
YOSHIKAWA, Eiji Reonardo PETRI, José Luiz SEZERINO, André Amarildo |
author_role |
author |
author2 |
PETRI, José Luiz SEZERINO, André Amarildo |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
YOSHIKAWA, Eiji Reonardo PETRI, José Luiz SEZERINO, André Amarildo |
dc.subject.por.fl_str_mv |
climate change temperate fruit crops apple |
topic |
climate change temperate fruit crops apple |
description |
The brazilian apple production are located in the southern region, with the best areas in altitudes ranging from 800 to 1400 m, with great variability in the number of Chilling Hours (CH) and Chilling Units (CU) in the different regions and years. The objective of this study was to compare CH equal or below 7.2°C and CU by the North Carolina Modified model in different regions of southern Brazil, comparing with Aomori region in Japan. In Brazil was used historical data of the CH and CU from 2000 to 2016 in the municipalities of Caçador (960 m), Videira (774 m), São Joaquim (1376 m), Fraiburgo (1038 m) and Vacaria (986 m). In Aomori (2.8 m) the historical data used was from 2000 to 2011. The results shows that in southern Brazil there is a variation in the number of CH between sites and years, being greater in the sites of higher altitude, with an average of 880 CH in São Joaquim and 411 CH in Videira. When compared the brazilian regions with Aomori, the japanese region have a greater CH accumulation. Once CU have the same behavior of CH in respect to altitudes, but shows a larger variability between years in the different regions of southern Brazil, is possible to affirm that the North Carolina Modified method is more accurate to quantify the chilling in regions with large temperature fluctuations in the autumn and winter, while for regions with low thermal amplitude, the model of CH presents a better adherence. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-04-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revista.uergs.edu.br/index.php/revuergs/article/view/1066 10.21674/2448-0479.41.91-106 |
url |
https://revista.uergs.edu.br/index.php/revuergs/article/view/1066 |
identifier_str_mv |
10.21674/2448-0479.41.91-106 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revista.uergs.edu.br/index.php/revuergs/article/view/1066/280 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista Eletrônica Científica da UERGS info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Revista Eletrônica Científica da UERGS |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Uergs |
publisher.none.fl_str_mv |
Uergs |
dc.source.none.fl_str_mv |
Revista Eletrônica Científica da UERGS ; v. 4 n. 1 (2018): RevUergs; 91-106 2448-0479 reponame:Revista Eletrônica Científica da Uergs instname:Universidade Estadual do Rio Grande do Sul (UERGS) instacron:UERGS |
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Universidade Estadual do Rio Grande do Sul (UERGS) |
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institution |
UERGS |
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Revista Eletrônica Científica da Uergs |
collection |
Revista Eletrônica Científica da Uergs |
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Revista Eletrônica Científica da Uergs - Universidade Estadual do Rio Grande do Sul (UERGS) |
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