ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA

Detalhes bibliográficos
Autor(a) principal: Pavanello, Alexandre Pozzobom
Data de Publicação: 2012
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UEPG
Texto Completo: http://tede2.uepg.br/jspui/handle/prefix/2224
Resumo: Fruit thinning is one of the main practice to produce good quality fruit today. It promotes a balance between vegetative growth and production, increases fruit size and avoids alternation of production. Thinning can be done during flowering, but its often done later after fruit set, which can be defined best fruiting. Manual thinning of large number of plants is not practical or economical. An alternative is chemical thinning, which involves the application of chemicals on flowering or right after flowering and leads to fruit abscission, reducing or eliminating manual thinning. The objectives of this trial was to evaluate the effect of different concentrations of ethephon (2-chloroethylphosphonic) in chemical thinning of plum cvs. Irati, Reubennel during the harvest of 2010/2011 and 2011/2012 and its economic feasibility in Arapoti-PR. East central region of Paraná. The following characteristics were evaluated, number of fruits per branch, per plant, production, medium weight, firmness, soluble solids, pH, acidity and color. In the season 2010/2011, it was observed that increased concentration of ethephon linearly decreased the number of fruit caliber I, II, III, since the gauge IV had a higher number of fruits on the estimated concentration of 0.093 mL L ethephon and necessary to drive studies at lower concentrations, which were made in 2011/2012 harvest. In this harvest, the estimated concentration of 0.07 mL L ethephon, cv. Irati produced 23 kg/plant and the cv. Reubennel 73 kg/plant having satisfactory quantity of fruit size III and IV. The use of ethephon decreased the firmness of the fruits for cv. Irati and did not influenced the cv. Reubennel. None of the concentrations of ethephon affected the physical and chemical quality of fruits in relation to total soluble solids, pH and acidity for both crops and cvs. Economical evaluation of both cvs., showed that productivity and net income of treatment with etehephon gave better results than other treatments. Manual thinning showed a higher percentage gave better results than other treatments. Manual thinning showed a higher percentage of fruit size III and IV but at higher cost, which is difficult to sustain in time, due to high cost and availability of skilled labor force in the region, which indicates that chemical thinning will be a good economical alternative.
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spelling Ayub, Ricardo AntonioCPF:54603722672http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782860Z5Botelho, Renato VasconcelosCPF:18779838880http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4775953H0Tofanelli, Mauro Brasil DiasCPF:87194660644http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4796392D8CPF:05901764986http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4177951Z6Pavanello, Alexandre Pozzobom2017-07-25T19:29:53Z2012-07-302017-07-25T19:29:53Z2012-05-10PAVANELLO, Alexandre Pozzobom. ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA. 2012. 56 f. Dissertação (Mestrado em Agricultura) - UNIVERSIDADE ESTADUAL DE PONTA GROSSA, Ponta Grossa, 2012.http://tede2.uepg.br/jspui/handle/prefix/2224Fruit thinning is one of the main practice to produce good quality fruit today. It promotes a balance between vegetative growth and production, increases fruit size and avoids alternation of production. Thinning can be done during flowering, but its often done later after fruit set, which can be defined best fruiting. Manual thinning of large number of plants is not practical or economical. An alternative is chemical thinning, which involves the application of chemicals on flowering or right after flowering and leads to fruit abscission, reducing or eliminating manual thinning. The objectives of this trial was to evaluate the effect of different concentrations of ethephon (2-chloroethylphosphonic) in chemical thinning of plum cvs. Irati, Reubennel during the harvest of 2010/2011 and 2011/2012 and its economic feasibility in Arapoti-PR. East central region of Paraná. The following characteristics were evaluated, number of fruits per branch, per plant, production, medium weight, firmness, soluble solids, pH, acidity and color. In the season 2010/2011, it was observed that increased concentration of ethephon linearly decreased the number of fruit caliber I, II, III, since the gauge IV had a higher number of fruits on the estimated concentration of 0.093 mL L ethephon and necessary to drive studies at lower concentrations, which were made in 2011/2012 harvest. In this harvest, the estimated concentration of 0.07 mL L ethephon, cv. Irati produced 23 kg/plant and the cv. Reubennel 73 kg/plant having satisfactory quantity of fruit size III and IV. The use of ethephon decreased the firmness of the fruits for cv. Irati and did not influenced the cv. Reubennel. None of the concentrations of ethephon affected the physical and chemical quality of fruits in relation to total soluble solids, pH and acidity for both crops and cvs. Economical evaluation of both cvs., showed that productivity and net income of treatment with etehephon gave better results than other treatments. Manual thinning showed a higher percentage gave better results than other treatments. Manual thinning showed a higher percentage of fruit size III and IV but at higher cost, which is difficult to sustain in time, due to high cost and availability of skilled labor force in the region, which indicates that chemical thinning will be a good economical alternative.O raleio de frutos é uma das práticas mais importantes para se produzir frutos de qualidade. Promove equilíbrio entre o crescimento vegetativo e produtivo, aumento no tamanho dos frutos e evita alternância da produção. O raleio pode ser realizado durante a floração, mas é frequentemente feito mais tarde, após a fixação dos frutos, onde pode se definir melhor a frutificação. O raleio manual de um grande número de plantas não é prático nem econômico. A alternativa é o raleio químico, o qual consiste na aplicação de produtos químicos na floração ou logo após, provocando a abscisão de frutos, diminuindo ou eliminando, a atividade do raleio manual. Nesse contexto, os objetivos deste trabalho foram avaliar o efeito de diferentes concentrações de ethephon (ácido 2-cloroetilfosfônico), para o raleio químico das ameixeiras cvs. Irati e Reubennel, nas safras 2010/2011 e 2011/2012 e sua viabilidade econômica, no município de Arapoti – PR, região centro leste do Paraná. As seguintes características foram avaliadas: número de frutos por ramo, por planta, produção, massa médio, firmeza, sólidos solúveis, pH, acidez e coloração. Na safra 2010/2011, concluiu-se que o aumento na concentração de ethephon diminuiu linearmente o número de frutos de calibre I, II e III, já o calibre IV apresentou maior número de frutos na concentração estimada de 0,093 mL Lˉˡ de ethephon, sendo necessário realizar estudos com menores concentrações, as quais foram feitas na safra 2011/2012. Nesta safra, a concentração estimada de 0,07 mL Lˉˡ de ethephon, a cv. Irati produziu 23 kg/planta e a cv. Reubennel 73 kg/planta, apresentando quantidade satisfatória de frutos calibre III e IV. A utilização de ethephon diminui a firmeza dos frutos para cv. Irati e não influenciou a cv. Reubennel. Nenhuma das concentrações de ethephon afetou a qualidade física e química dos frutos, em relação ao teor de sólidos solúveis, pH e acidez, para ambas cvs e safras. Na análise econômica, em ambas cvs., a produtividade e a receita líquida para o tratamento com ethephon, foi superior aos demais. O tratamento com raleio manual apresentou maior porcentagem de frutos calibre III e IV, porém o alto custo, a dificuldade e disponibilidade de mão-de-obra para o raleio manual, fazem com que o raleio químico venha a ser usado cada vez mais.Made available in DSpace on 2017-07-25T19:29:53Z (GMT). No. of bitstreams: 1 Alexandre Pavanello.pdf: 2830870 bytes, checksum: 6cfe2c059418ba0841f20c1f7b9ba383 (MD5) Previous issue date: 2012-05-10Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do Paranáapplication/pdfporUNIVERSIDADE ESTADUAL DE PONTA GROSSAPrograma de Pós-Graduação em AgronomiaUEPGBRAgriculturaPrunus salicinaÁcido 2-cloroetilfosfônicofrutificaçãoPrunus salicina2-chloroethylphosphonic acidFruit setCNPQ::CIENCIAS AGRARIAS::AGRONOMIAÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADAinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UEPGinstname:Universidade Estadual de Ponta Grossa (UEPG)instacron:UEPGORIGINALAlexandre Pavanello.pdfapplication/pdf2830870http://tede2.uepg.br/jspui/bitstream/prefix/2224/1/Alexandre%20Pavanello.pdf6cfe2c059418ba0841f20c1f7b9ba383MD51prefix/22242017-07-25 16:29:53.491oai:tede2.uepg.br:prefix/2224Biblioteca Digital de Teses e Dissertaçõeshttps://tede2.uepg.br/jspui/PUBhttp://tede2.uepg.br/oai/requestbicen@uepg.br||mv_fidelis@yahoo.com.bropendoar:2017-07-25T19:29:53Biblioteca Digital de Teses e Dissertações da UEPG - Universidade Estadual de Ponta Grossa (UEPG)false
dc.title.por.fl_str_mv ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
title ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
spellingShingle ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
Pavanello, Alexandre Pozzobom
Prunus salicina
Ácido 2-cloroetilfosfônico
frutificação
Prunus salicina
2-chloroethylphosphonic acid
Fruit set
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
title_short ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
title_full ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
title_fullStr ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
title_full_unstemmed ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
title_sort ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA
author Pavanello, Alexandre Pozzobom
author_facet Pavanello, Alexandre Pozzobom
author_role author
dc.contributor.advisor1.fl_str_mv Ayub, Ricardo Antonio
dc.contributor.advisor1ID.fl_str_mv CPF:54603722672
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782860Z5
dc.contributor.referee1.fl_str_mv Botelho, Renato Vasconcelos
dc.contributor.referee1ID.fl_str_mv CPF:18779838880
dc.contributor.referee1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4775953H0
dc.contributor.referee2.fl_str_mv Tofanelli, Mauro Brasil Dias
dc.contributor.referee2ID.fl_str_mv CPF:87194660644
dc.contributor.referee2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4796392D8
dc.contributor.authorID.fl_str_mv CPF:05901764986
dc.contributor.authorLattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4177951Z6
dc.contributor.author.fl_str_mv Pavanello, Alexandre Pozzobom
contributor_str_mv Ayub, Ricardo Antonio
Botelho, Renato Vasconcelos
Tofanelli, Mauro Brasil Dias
dc.subject.por.fl_str_mv Prunus salicina
Ácido 2-cloroetilfosfônico
frutificação
topic Prunus salicina
Ácido 2-cloroetilfosfônico
frutificação
Prunus salicina
2-chloroethylphosphonic acid
Fruit set
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
dc.subject.eng.fl_str_mv Prunus salicina
2-chloroethylphosphonic acid
Fruit set
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
description Fruit thinning is one of the main practice to produce good quality fruit today. It promotes a balance between vegetative growth and production, increases fruit size and avoids alternation of production. Thinning can be done during flowering, but its often done later after fruit set, which can be defined best fruiting. Manual thinning of large number of plants is not practical or economical. An alternative is chemical thinning, which involves the application of chemicals on flowering or right after flowering and leads to fruit abscission, reducing or eliminating manual thinning. The objectives of this trial was to evaluate the effect of different concentrations of ethephon (2-chloroethylphosphonic) in chemical thinning of plum cvs. Irati, Reubennel during the harvest of 2010/2011 and 2011/2012 and its economic feasibility in Arapoti-PR. East central region of Paraná. The following characteristics were evaluated, number of fruits per branch, per plant, production, medium weight, firmness, soluble solids, pH, acidity and color. In the season 2010/2011, it was observed that increased concentration of ethephon linearly decreased the number of fruit caliber I, II, III, since the gauge IV had a higher number of fruits on the estimated concentration of 0.093 mL L ethephon and necessary to drive studies at lower concentrations, which were made in 2011/2012 harvest. In this harvest, the estimated concentration of 0.07 mL L ethephon, cv. Irati produced 23 kg/plant and the cv. Reubennel 73 kg/plant having satisfactory quantity of fruit size III and IV. The use of ethephon decreased the firmness of the fruits for cv. Irati and did not influenced the cv. Reubennel. None of the concentrations of ethephon affected the physical and chemical quality of fruits in relation to total soluble solids, pH and acidity for both crops and cvs. Economical evaluation of both cvs., showed that productivity and net income of treatment with etehephon gave better results than other treatments. Manual thinning showed a higher percentage gave better results than other treatments. Manual thinning showed a higher percentage of fruit size III and IV but at higher cost, which is difficult to sustain in time, due to high cost and availability of skilled labor force in the region, which indicates that chemical thinning will be a good economical alternative.
publishDate 2012
dc.date.available.fl_str_mv 2012-07-30
2017-07-25T19:29:53Z
dc.date.issued.fl_str_mv 2012-05-10
dc.date.accessioned.fl_str_mv 2017-07-25T19:29:53Z
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dc.identifier.uri.fl_str_mv http://tede2.uepg.br/jspui/handle/prefix/2224
identifier_str_mv PAVANELLO, Alexandre Pozzobom. ÁCIDO 2-CLOROETILFOSFÔNICO NO RALEIO DE AMEIXEIRAS EM PÓS FLORADA. 2012. 56 f. Dissertação (Mestrado em Agricultura) - UNIVERSIDADE ESTADUAL DE PONTA GROSSA, Ponta Grossa, 2012.
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