Effect of a freeze on some technological characteristics of several sugar cane varieties

Detalhes bibliográficos
Autor(a) principal: Bastos, Cândido R.
Data de Publicação: 2014
Outros Autores: Pommer, Celso V., Camargo, Antônio P., Bovi, V., Cione, J., Ribeiro, Rogério F.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/15301
Resumo: A freeze occurred in the State of São Paulo, on July, 18th, 1975 with the temperature decreasing to -1ºC in Piracicaba. Advantage was taken of this occurrence to study the effect of freeze on the technological characteristics of some commercial sugar cane varieties. Ten stalk samples were taken for the experiment, beginning at twelve days after the freeze and thereafter every two weeks. Brix % juice, pol % juice and, by inference, theoretical sugar yield (kg/t of cane) were studied. Due to the environmental and plant conditions in the field, it could be concluded that the varieties did not show significant alterations caused by the freeze in none of the seven fortnight samples. Regression analysis showed that brix % juice data fitted 2nd degree curves better than the other data, with F test significant in nine out of fifteen cases.
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spelling Effect of a freeze on some technological characteristics of several sugar cane varietiesEfeito da geada nas características tecnológicas de algumas variedades de cana-de-açúcarstalks; brix; pol; theoretical sugarcolmos; brix; pol; produção de açúcar provávelA freeze occurred in the State of São Paulo, on July, 18th, 1975 with the temperature decreasing to -1ºC in Piracicaba. Advantage was taken of this occurrence to study the effect of freeze on the technological characteristics of some commercial sugar cane varieties. Ten stalk samples were taken for the experiment, beginning at twelve days after the freeze and thereafter every two weeks. Brix % juice, pol % juice and, by inference, theoretical sugar yield (kg/t of cane) were studied. Due to the environmental and plant conditions in the field, it could be concluded that the varieties did not show significant alterations caused by the freeze in none of the seven fortnight samples. Regression analysis showed that brix % juice data fitted 2nd degree curves better than the other data, with F test significant in nine out of fifteen cases.Em 18 de julho de 1975, ocorreu geada no Estado de São Paulo; em Piracicaba, a temperatura atingiu -1ºC. Aproveitou-se a ocorrência da geada para investigar seus efeitos sobre características tecnológicas de algumas variedades. Foram tomadas amostras de dez colmos cada uma, a partir de doze dias após a geada, e depois, aproximadamente, a cada duas semanas. Analisaram-se brix % caldo, pol % caldo e, por inferência, produção de açúcar provável (em kg/t de cana). Dadas as condições do meio ambiente e das próprias plantas, pode-se dizer que estas não sofreram alterações dignas de nota nas sete amostras quinzenais efetuadas após a geada, nas características analisadas. Aplicando-se análise de regressão, verificou-se que os dados de brix % caldo ajustaram-se melhor às curvas de 2º grau. O teste F para regressão foi significativo em nove dos quinze casos estudados.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBastos, Cândido R.Pommer, Celso V.Camargo, Antônio P.Bovi, V.Cione, J.Ribeiro, Rogério F.2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15301Pesquisa Agropecuaria Brasileira; v.18, n.6, jun. 1983; 565-574Pesquisa Agropecuária Brasileira; v.18, n.6, jun. 1983; 565-5741678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15301/9142info:eu-repo/semantics/openAccess2014-04-16T18:59:25Zoai:ojs.seer.sct.embrapa.br:article/15301Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T18:59:25Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effect of a freeze on some technological characteristics of several sugar cane varieties
Efeito da geada nas características tecnológicas de algumas variedades de cana-de-açúcar
title Effect of a freeze on some technological characteristics of several sugar cane varieties
spellingShingle Effect of a freeze on some technological characteristics of several sugar cane varieties
Bastos, Cândido R.
stalks; brix; pol; theoretical sugar
colmos; brix; pol; produção de açúcar provável
title_short Effect of a freeze on some technological characteristics of several sugar cane varieties
title_full Effect of a freeze on some technological characteristics of several sugar cane varieties
title_fullStr Effect of a freeze on some technological characteristics of several sugar cane varieties
title_full_unstemmed Effect of a freeze on some technological characteristics of several sugar cane varieties
title_sort Effect of a freeze on some technological characteristics of several sugar cane varieties
author Bastos, Cândido R.
author_facet Bastos, Cândido R.
Pommer, Celso V.
Camargo, Antônio P.
Bovi, V.
Cione, J.
Ribeiro, Rogério F.
author_role author
author2 Pommer, Celso V.
Camargo, Antônio P.
Bovi, V.
Cione, J.
Ribeiro, Rogério F.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Bastos, Cândido R.
Pommer, Celso V.
Camargo, Antônio P.
Bovi, V.
Cione, J.
Ribeiro, Rogério F.
dc.subject.por.fl_str_mv stalks; brix; pol; theoretical sugar
colmos; brix; pol; produção de açúcar provável
topic stalks; brix; pol; theoretical sugar
colmos; brix; pol; produção de açúcar provável
description A freeze occurred in the State of São Paulo, on July, 18th, 1975 with the temperature decreasing to -1ºC in Piracicaba. Advantage was taken of this occurrence to study the effect of freeze on the technological characteristics of some commercial sugar cane varieties. Ten stalk samples were taken for the experiment, beginning at twelve days after the freeze and thereafter every two weeks. Brix % juice, pol % juice and, by inference, theoretical sugar yield (kg/t of cane) were studied. Due to the environmental and plant conditions in the field, it could be concluded that the varieties did not show significant alterations caused by the freeze in none of the seven fortnight samples. Regression analysis showed that brix % juice data fitted 2nd degree curves better than the other data, with F test significant in nine out of fifteen cases.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/15301
url https://seer.sct.embrapa.br/index.php/pab/article/view/15301
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/15301/9142
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.18, n.6, jun. 1983; 565-574
Pesquisa Agropecuária Brasileira; v.18, n.6, jun. 1983; 565-574
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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