Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421
Autor(a) principal: | |
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Data de Publicação: | 1961 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Anais da Escola Superior de Agricultura Luiz de Queiroz |
Texto Completo: | https://www.revistas.usp.br/aesalq/article/view/43191 |
Resumo: | I. This paper deals with an experiment carried out to evaluate the effect of the sugar cane upper end on the composition of the sugar cane harvest as a raw material for the sugar industry. The variety studied was Co 421. The authors intend to study other varieties in the future. The data were collected from plant cane, at intervals of two weeks, always from the same field, from a small central area of 3.000 square meters approximately. Sixty (60) stalks were cut in each occasion, randomly chosen from the whole area. They were afterwards separated into three groups of 20 stalks, one for each of the treatments, namely: a) Complete stalks, with no leaves or sheaths. b) Stalks harvested by the technique of REYNOSO, that is, as usually done in practice. c) Stalks with the tops completely cut out, that is, cut by technique of REYNOSO and then with 3 other top internodes eliminated. The treatments caused significant differences on the following technological characteristics: a) Weight b) Cane pol c) Available sucrose (pol) per cent cane d) Cane juice pol e) Saline coefficient of juice. II. Except for weight, all changes were favorable to treatment c, even if with differences relatively slight, in percentage. IIII. Treatment differences for cane fiber, brix, reducing sugars, juice ashes, coefficient of purity and glucose coefficient were not significant. IV. Time of harvest was an important factor affecting the composition of the cane and of the juice. V. On the average the available sucrose of cane for treatments, with an standard error of 0.13%, was: Treatment c 13.05% Treatment b 12.65% Treatment a 12.53% This shows that there is no sound basis for the heavy fines applied by some sugar mills to planters who do not cut low enough the tops of the cane stalks. |
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Anais da Escola Superior de Agricultura Luiz de Queiroz |
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Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421I. This paper deals with an experiment carried out to evaluate the effect of the sugar cane upper end on the composition of the sugar cane harvest as a raw material for the sugar industry. The variety studied was Co 421. The authors intend to study other varieties in the future. The data were collected from plant cane, at intervals of two weeks, always from the same field, from a small central area of 3.000 square meters approximately. Sixty (60) stalks were cut in each occasion, randomly chosen from the whole area. They were afterwards separated into three groups of 20 stalks, one for each of the treatments, namely: a) Complete stalks, with no leaves or sheaths. b) Stalks harvested by the technique of REYNOSO, that is, as usually done in practice. c) Stalks with the tops completely cut out, that is, cut by technique of REYNOSO and then with 3 other top internodes eliminated. The treatments caused significant differences on the following technological characteristics: a) Weight b) Cane pol c) Available sucrose (pol) per cent cane d) Cane juice pol e) Saline coefficient of juice. II. Except for weight, all changes were favorable to treatment c, even if with differences relatively slight, in percentage. IIII. Treatment differences for cane fiber, brix, reducing sugars, juice ashes, coefficient of purity and glucose coefficient were not significant. IV. Time of harvest was an important factor affecting the composition of the cane and of the juice. V. On the average the available sucrose of cane for treatments, with an standard error of 0.13%, was: Treatment c 13.05% Treatment b 12.65% Treatment a 12.53% This shows that there is no sound basis for the heavy fines applied by some sugar mills to planters who do not cut low enough the tops of the cane stalks.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz1961-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/aesalq/article/view/4319110.1590/S0071-12761961000100001Anais da Escola Superior de Agricultura Luiz de Queiroz; v. 18 (1961); 5-332316-89350071-1276reponame:Anais da Escola Superior de Agricultura Luiz de Queirozinstname:Escola Superior de Agricultura Luiz de Queiroz (ESALQ-USP)instacron:USPporhttps://www.revistas.usp.br/aesalq/article/view/43191/46816Valsechi, OctavioGomes, F. PimentelOliveira, Enio R. deAbreu, Clovis P. deinfo:eu-repo/semantics/openAccess2012-09-18T13:32:30Zoai:revistas.usp.br:article/43191Revistahttps://www.revistas.usp.br/aesalq/about/contactPUBhttps://www.revistas.usp.br/aesalq/oaiscientia@esalq.usp.br0071-12760071-1276opendoar:2012-09-18T13:32:30Anais da Escola Superior de Agricultura Luiz de Queiroz - Escola Superior de Agricultura Luiz de Queiroz (ESALQ-USP)false |
dc.title.none.fl_str_mv |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 |
title |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 |
spellingShingle |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 Valsechi, Octavio |
title_short |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 |
title_full |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 |
title_fullStr |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 |
title_full_unstemmed |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 |
title_sort |
Influência do desponte sôbre a composição do côlmo e do caldo da cana-de-açucar, I. Var. Co 421 |
author |
Valsechi, Octavio |
author_facet |
Valsechi, Octavio Gomes, F. Pimentel Oliveira, Enio R. de Abreu, Clovis P. de |
author_role |
author |
author2 |
Gomes, F. Pimentel Oliveira, Enio R. de Abreu, Clovis P. de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Valsechi, Octavio Gomes, F. Pimentel Oliveira, Enio R. de Abreu, Clovis P. de |
description |
I. This paper deals with an experiment carried out to evaluate the effect of the sugar cane upper end on the composition of the sugar cane harvest as a raw material for the sugar industry. The variety studied was Co 421. The authors intend to study other varieties in the future. The data were collected from plant cane, at intervals of two weeks, always from the same field, from a small central area of 3.000 square meters approximately. Sixty (60) stalks were cut in each occasion, randomly chosen from the whole area. They were afterwards separated into three groups of 20 stalks, one for each of the treatments, namely: a) Complete stalks, with no leaves or sheaths. b) Stalks harvested by the technique of REYNOSO, that is, as usually done in practice. c) Stalks with the tops completely cut out, that is, cut by technique of REYNOSO and then with 3 other top internodes eliminated. The treatments caused significant differences on the following technological characteristics: a) Weight b) Cane pol c) Available sucrose (pol) per cent cane d) Cane juice pol e) Saline coefficient of juice. II. Except for weight, all changes were favorable to treatment c, even if with differences relatively slight, in percentage. IIII. Treatment differences for cane fiber, brix, reducing sugars, juice ashes, coefficient of purity and glucose coefficient were not significant. IV. Time of harvest was an important factor affecting the composition of the cane and of the juice. V. On the average the available sucrose of cane for treatments, with an standard error of 0.13%, was: Treatment c 13.05% Treatment b 12.65% Treatment a 12.53% This shows that there is no sound basis for the heavy fines applied by some sugar mills to planters who do not cut low enough the tops of the cane stalks. |
publishDate |
1961 |
dc.date.none.fl_str_mv |
1961-01-01 |
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://www.revistas.usp.br/aesalq/article/view/43191 10.1590/S0071-12761961000100001 |
url |
https://www.revistas.usp.br/aesalq/article/view/43191 |
identifier_str_mv |
10.1590/S0071-12761961000100001 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/aesalq/article/view/43191/46816 |
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 |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Anais da Escola Superior de Agricultura Luiz de Queiroz; v. 18 (1961); 5-33 2316-8935 0071-1276 reponame:Anais da Escola Superior de Agricultura Luiz de Queiroz instname:Escola Superior de Agricultura Luiz de Queiroz (ESALQ-USP) instacron:USP |
instname_str |
Escola Superior de Agricultura Luiz de Queiroz (ESALQ-USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Anais da Escola Superior de Agricultura Luiz de Queiroz |
collection |
Anais da Escola Superior de Agricultura Luiz de Queiroz |
repository.name.fl_str_mv |
Anais da Escola Superior de Agricultura Luiz de Queiroz - Escola Superior de Agricultura Luiz de Queiroz (ESALQ-USP) |
repository.mail.fl_str_mv |
scientia@esalq.usp.br |
_version_ |
1797050007777443840 |