THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Gaúcha (Online) |
Texto Completo: | http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/347 |
Resumo: | The probabilities of maximum temperatures harmful to the growth and development of cucumber crop and the thermal time occurring from transplanting to end of harvest of this crop were calculated for the "Baixo Vale do Taquari" Region, Rio Grande do Sul State, Brazil. Maximum and minimum temperature data during the period 20 January 1963 through 31 March 1999 measured in a meteorological station at Taquari (29°48' S Latitude, 51 °49' W Longitude and 75 m altitude) were used in this study. For the analysis of maximum temperature, the probabilities of occurring values greater or equal to 30°C, 32°C, 34°C, 36°C and 38 °C were calculated. It was assumed that temperatures greater than 30°C are harmful to the plant. In order to determine a planting date schedule for the crop, the thermal time above 12°C during the phenological phase from transplanting to end of harvest period was used in the calculations. Results showed that temperatures greater than 30°C may occur even during the winter months, when growing cucumber is not recommended in this region due to the risk of low lethal temperatures. Also, it was found that there is a probability of occurring temperatures greater than 32°C from the third decade of August to the third decade April, greater or equal to 34°C from the third decade of August to the first decade of April, greater or equal to 36°C from the third decade of September to the third decade of March and greater or equal to 38°C from the second decade of November to the second decade of February. Based on thermal time, the duration of the phenological phase from transplanting to end of harvest period was shorter during January and February (as short as 45 days) and longer during August, September and March (as long as 100 days). |
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THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIMECONDIÇÕES TÉRMICAS PARA O CULTIVO DO PEPINEIRO NA REGIÃO DO BAIXO VALE DO TAQUARI, RS. 2 - TEMPERATURA MÁXIMA E SOMA TÉRMICACucumis sativus L., thermal requirement, planting schedule.Cucumis sativus L., exigência térmica, produção escalonada.The probabilities of maximum temperatures harmful to the growth and development of cucumber crop and the thermal time occurring from transplanting to end of harvest of this crop were calculated for the "Baixo Vale do Taquari" Region, Rio Grande do Sul State, Brazil. Maximum and minimum temperature data during the period 20 January 1963 through 31 March 1999 measured in a meteorological station at Taquari (29°48' S Latitude, 51 °49' W Longitude and 75 m altitude) were used in this study. For the analysis of maximum temperature, the probabilities of occurring values greater or equal to 30°C, 32°C, 34°C, 36°C and 38 °C were calculated. It was assumed that temperatures greater than 30°C are harmful to the plant. In order to determine a planting date schedule for the crop, the thermal time above 12°C during the phenological phase from transplanting to end of harvest period was used in the calculations. Results showed that temperatures greater than 30°C may occur even during the winter months, when growing cucumber is not recommended in this region due to the risk of low lethal temperatures. Also, it was found that there is a probability of occurring temperatures greater than 32°C from the third decade of August to the third decade April, greater or equal to 34°C from the third decade of August to the first decade of April, greater or equal to 36°C from the third decade of September to the third decade of March and greater or equal to 38°C from the second decade of November to the second decade of February. Based on thermal time, the duration of the phenological phase from transplanting to end of harvest period was shorter during January and February (as short as 45 days) and longer during August, September and March (as long as 100 days). Determinou-se a probabilidade de ocorrência de temperaturas máximas do ar prejudiciais ao crescimento e desenvolvimento do pepineiro e a duração em número de dias do subperíodo do transplante ao final de colheita com base na soma térmica, considerando diferentes épocas de transplante, para a região do Baixo Vale do Rio Taquari, Estado do Rio Grande do Sul. Foram utilizados os dados de temperatura máxima e mínima diárias, período de 20/01/1963 a 31/03/1999, registrados na estação meteorológica de Taquari (latitude: 29°48' S, longitude: 51°49' W e altitude: 75 m), pertencente a Fundação Estadual de Pesquisa Agropecuária (FEPAGRO). Para a análise das temperaturas máximas calculou-se a probabilidade de ocorrência de valores iguais ou superiores a 30°C, 32°C, 34°C, 36°C e 38°C, considerando 30°C como limite superior das temperaturas ótimas para o crescimento e desenvolvimento das plantas, acima do qual os prejuízos crescem de forma proporcional ao aumento da temperatura. Para o escalonamento das épocas de colheita determinou-se a soma térmica, acima de 12 °C, do subperíodo do transplante ao final de colheita. Os resultados mostraram que valores acima de 30°C ocorrem mesmo nos meses de inverno, quando não é recomendada a semeadura do pepineiro a campo em função das temperaturas mínimas letais, e que existe a probabilidade de ocorrer temperatura do ar igual ou superior a 32°C do 3° decêndio de agosto ao 3° decêndio de abril, igual ou superior a 34°C do 3° decêndio de agosto ao 1° decêndio de abril, igual ou superior a 36°C do 3° decêndio de setembro ao 3° decêndio de março e igual ou superior a 38°C do 2° decêndio de novembro ao 2° decêndio de fevereiro. A duração em número de dias do subperíodo do transplante ao final de colheita, com base na soma térmica, é mínima quando o cultivo é realizado nos meses de janeiro e primeira metade de fevereiro (até 45 dias) e máxima nos meses de agosto, setembro e março (até 100 dias). Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural2000-12-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/347Pesquisa Agropecuária Gaúcha; Vol 6 No 2 (2000): PESQ. AGROP. GAÚCHA; 215-223Pesquisa Agropecuária Gaúcha; v. 6 n. 2 (2000): PESQ. AGROP. GAÚCHA; 215-2232595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/347/317BURIOL, GALILEO ADELI HELDWEIN, ARNO BERNARDO ESTEFANEL, VALDUÍNO MATZENAUER, RONALDO MARCON, ILOIR ANGELO info:eu-repo/semantics/openAccess2020-08-08T21:33:21Zoai:ojs.revistapag.agricultura.rs.gov.br:article/347Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2020-08-08T21:33:21Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse |
dc.title.none.fl_str_mv |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME CONDIÇÕES TÉRMICAS PARA O CULTIVO DO PEPINEIRO NA REGIÃO DO BAIXO VALE DO TAQUARI, RS. 2 - TEMPERATURA MÁXIMA E SOMA TÉRMICA |
title |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME |
spellingShingle |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME BURIOL, GALILEO ADELI Cucumis sativus L., thermal requirement, planting schedule. Cucumis sativus L., exigência térmica, produção escalonada. |
title_short |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME |
title_full |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME |
title_fullStr |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME |
title_full_unstemmed |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME |
title_sort |
THERMAL CONDITIONS FOR CUCUMBER IN THE TAQUARI VALLEY REGION, RS. 2 - MAXIMUM TEMPERATURE AND THERMAL TIME |
author |
BURIOL, GALILEO ADELI |
author_facet |
BURIOL, GALILEO ADELI HELDWEIN, ARNO BERNARDO ESTEFANEL, VALDUÍNO MATZENAUER, RONALDO MARCON, ILOIR ANGELO |
author_role |
author |
author2 |
HELDWEIN, ARNO BERNARDO ESTEFANEL, VALDUÍNO MATZENAUER, RONALDO MARCON, ILOIR ANGELO |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
BURIOL, GALILEO ADELI HELDWEIN, ARNO BERNARDO ESTEFANEL, VALDUÍNO MATZENAUER, RONALDO MARCON, ILOIR ANGELO |
dc.subject.por.fl_str_mv |
Cucumis sativus L., thermal requirement, planting schedule. Cucumis sativus L., exigência térmica, produção escalonada. |
topic |
Cucumis sativus L., thermal requirement, planting schedule. Cucumis sativus L., exigência térmica, produção escalonada. |
description |
The probabilities of maximum temperatures harmful to the growth and development of cucumber crop and the thermal time occurring from transplanting to end of harvest of this crop were calculated for the "Baixo Vale do Taquari" Region, Rio Grande do Sul State, Brazil. Maximum and minimum temperature data during the period 20 January 1963 through 31 March 1999 measured in a meteorological station at Taquari (29°48' S Latitude, 51 °49' W Longitude and 75 m altitude) were used in this study. For the analysis of maximum temperature, the probabilities of occurring values greater or equal to 30°C, 32°C, 34°C, 36°C and 38 °C were calculated. It was assumed that temperatures greater than 30°C are harmful to the plant. In order to determine a planting date schedule for the crop, the thermal time above 12°C during the phenological phase from transplanting to end of harvest period was used in the calculations. Results showed that temperatures greater than 30°C may occur even during the winter months, when growing cucumber is not recommended in this region due to the risk of low lethal temperatures. Also, it was found that there is a probability of occurring temperatures greater than 32°C from the third decade of August to the third decade April, greater or equal to 34°C from the third decade of August to the first decade of April, greater or equal to 36°C from the third decade of September to the third decade of March and greater or equal to 38°C from the second decade of November to the second decade of February. Based on thermal time, the duration of the phenological phase from transplanting to end of harvest period was shorter during January and February (as short as 45 days) and longer during August, September and March (as long as 100 days). |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-12-26 |
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 |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/347 |
url |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/347 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/347/317 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
publisher.none.fl_str_mv |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Gaúcha; Vol 6 No 2 (2000): PESQ. AGROP. GAÚCHA; 215-223 Pesquisa Agropecuária Gaúcha; v. 6 n. 2 (2000): PESQ. AGROP. GAÚCHA; 215-223 2595-7686 0104-9070 reponame:Pesquisa Agropecuária Gaúcha (Online) instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul instacron:SEAPDR |
instname_str |
Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
instacron_str |
SEAPDR |
institution |
SEAPDR |
reponame_str |
Pesquisa Agropecuária Gaúcha (Online) |
collection |
Pesquisa Agropecuária Gaúcha (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
repository.mail.fl_str_mv |
pag@agricultura.rs.gov.br|| |
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1797068776172158976 |