Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/15751 |
Resumo: | Among the main factors that cause variation in the growth, development and productivity of chamomile and essential oil are the sowing date and plant spacing, but there is no consensus among researchers about the most appropriate spacing between plants, nor is there any indications regarding the date of sowing that aims at the maximum productive potential of chamomile for the climatic conditions of Santa Maria-RS. Thus, the main objectives of this work were to evaluate the growth, development and productivity of chapters and essential oil of chamomile in different sowing dates and spacing between plants, in addition to obtaining a model of leaf area for chamomile. An experiment was conducted in Santa Maria, RS, Brazil, with five sowing dates (03/18/2017, 04/28/2017, 06/30/2017, 07/28/2017 and 08/31/2017). Seven different spacing between plants were used, being 5, 10, 15, 20, 25, 30 and 40 cm. The variables used to obtain the leaf area model were leaf area (LA), leaf dry mass and specific leaf area (SLA) of chamomile. The growth variables were dry mass of leaves, reproductive structures and total aerial part of plants, as well as plant height, leaf area index and harvest index. The phenological variables reported were the accumulated thermal time for six subperiods in the interval between sowing and maturation, plastochron and final node number (FNN). The productive variables were the yield of dried floral chapters, yield and essential oil content. The spacing between plants, sowing date and phenological stage did not differ the SLA of the chamomile, being of 133 cm²g-1, as it did not differ, it was possible to obtain a single model for the LA estimation of chamomile. The model resulting from the LA data by the integrator presented optimum performance, being indicated for the determination of the LA of the chamomile when there is data of leaves dry mass. For the studied growth variables were no interaction between sowing date and plant spacing for the plants collected at different phenological stages, but both have an isolated effect on the growth of the chamomile. The sowing of March resulted in a greater growth of chamomile, and the sowing of August in smaller. In relation to the spacing between plants the spacing of 25 cm showed greater growth of the plants of chamomile. Regarding the phenological response, it should be noted that the spacing between plants did not influence the phenological development of the plants, but the date of sowing interfered with the thermal sum, plastochron and the final number of nodes. The dates of sowing affect the productivity of floral chapters, the content and productivity of chamomile essential oil.The highest values for these variables occur for the sowing performed on 18.03 and 28.04. There is a linear tendency to reduce the productivity of dry floral chapters of chamomile with increasing plant spacing in the row. |
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Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantasGrowth, development and productivity of camomile in different spacing between plants and sowing dateChamomilla recutitaPlanta medicinalVariáveis meteorológicasAcúmulo de biomassaCompetição intraespecíficaMedicinal plantMeteorological variablesIntraspecific competitionBiomass accumulationCNPQ::CIENCIAS AGRARIAS::AGRONOMIAAmong the main factors that cause variation in the growth, development and productivity of chamomile and essential oil are the sowing date and plant spacing, but there is no consensus among researchers about the most appropriate spacing between plants, nor is there any indications regarding the date of sowing that aims at the maximum productive potential of chamomile for the climatic conditions of Santa Maria-RS. Thus, the main objectives of this work were to evaluate the growth, development and productivity of chapters and essential oil of chamomile in different sowing dates and spacing between plants, in addition to obtaining a model of leaf area for chamomile. An experiment was conducted in Santa Maria, RS, Brazil, with five sowing dates (03/18/2017, 04/28/2017, 06/30/2017, 07/28/2017 and 08/31/2017). Seven different spacing between plants were used, being 5, 10, 15, 20, 25, 30 and 40 cm. The variables used to obtain the leaf area model were leaf area (LA), leaf dry mass and specific leaf area (SLA) of chamomile. The growth variables were dry mass of leaves, reproductive structures and total aerial part of plants, as well as plant height, leaf area index and harvest index. The phenological variables reported were the accumulated thermal time for six subperiods in the interval between sowing and maturation, plastochron and final node number (FNN). The productive variables were the yield of dried floral chapters, yield and essential oil content. The spacing between plants, sowing date and phenological stage did not differ the SLA of the chamomile, being of 133 cm²g-1, as it did not differ, it was possible to obtain a single model for the LA estimation of chamomile. The model resulting from the LA data by the integrator presented optimum performance, being indicated for the determination of the LA of the chamomile when there is data of leaves dry mass. For the studied growth variables were no interaction between sowing date and plant spacing for the plants collected at different phenological stages, but both have an isolated effect on the growth of the chamomile. The sowing of March resulted in a greater growth of chamomile, and the sowing of August in smaller. In relation to the spacing between plants the spacing of 25 cm showed greater growth of the plants of chamomile. Regarding the phenological response, it should be noted that the spacing between plants did not influence the phenological development of the plants, but the date of sowing interfered with the thermal sum, plastochron and the final number of nodes. The dates of sowing affect the productivity of floral chapters, the content and productivity of chamomile essential oil.The highest values for these variables occur for the sowing performed on 18.03 and 28.04. There is a linear tendency to reduce the productivity of dry floral chapters of chamomile with increasing plant spacing in the row.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqDentre os principais fatores que causam variação no crescimento, desenvolvimento e produtividade de capítulos e óleo essencial da camomila estão a data de semeadura e o espaçamento entre plantas, porém não há um consenso entre os pesquisadores sobre o espaçamento entre plantas mais apropriado e também não há indicações quanto à data de semeadura que vise o máximo potencial produtivo da camomila para as condições de clima subtropical úmido de Santa Maria-RS. Neste contexto, os principais objetivos deste trabalho foram avaliar o crescimento, desenvolvimento e produtividade de capítulos e óleo essencial de camomila em diferentes datas de semeadura e espaçamentos entre plantas, além da obtenção de um modelo de área foliar para a camomila. O experimento foi conduzido em Santa Maria- RS, no ano de 2017, com cinco datas de semeadura (18/03, 28/04, 30/06, 28/07 e 31/08) e sete diferentes espaçamentos entre plantas nas linhas (5, 10, 15, 20, 25, 30 e 40 cm), espaçadas 30 cm entre si. As variáveis utilizadas para a obtenção do modelo de área foliar foram a área foliar (AF), massa seca de folhas e área foliar específica (AFE) da camomila. As variáveis de crescimento analisadas foram a massa seca do caule, folhas, estruturas reprodutivas e total da parte aérea de plantas, além da altura de plantas, índice de área foliar e índice de colheita. As variáveis fenológicas analisadas foram a soma térmica acumulada para seis subperíodos no intervalo compreendido entre a semeadura e a maturação, plastocrono e número final de nós (NFN). Também foram avaliadas a produtividade de capítulos florais secos, teor e produtividade de óleo essencial. O espaçamento entre plantas, a data de semeadura e o estádio fenológico não influenciaram na AFE da camomila (133 cm²g-1), obtendo-se um modelo único para a estimativa da AF da camomila a partir da AFE resultante dos dados de AF medida com integrador eletrônico, que no teste apresentou desempenho ótimo. Assim, pode ser indicado para a determinação da AF da camomila quando há dados de massa seca das folhas. Para as variáveis de crescimento estudadas não houve interação entre a data de semeadura e o espaçamento de plantas para as plantas coletadas em diferentes estádios fenológicos, porém isoladamente ambos possuem efeito sobre o crescimento da camomila. A semeadura de março resultou em maior crescimento da camomila e a de agosto no menor, enquanto o espaçamento entre plantas de 25 cm resultou em maior crescimento das plantas de camomila. Em relação à resposta fenológica, os espaçamentos entre plantas não influenciaram o desenvolvimento fenológico das plantas, enquanto a data de semeadura interferiu na soma térmica, plastocrono e número final de nós. As datas de semeadura também afetaram a produtividade de capítulos florais, o teor e a produtividade de óleo essencial da camomila, sendo que para as semeaduras em 18/03 e 28/04 ocorrem os maiores valores dessas variáveis. Há tendência linear de redução na produtividade de capítulos florais secos de camomila com o aumento do espaçamento entre plantas na fileira.Universidade Federal de Santa MariaBrasilAgronomiaUFSMPrograma de Pós-Graduação em AgronomiaCentro de Ciências RuraisHeldwein, Arno Bernardohttp://lattes.cnpq.br/6671155842231311Backes, Fernanda Alice Antonello Londerohttp://lattes.cnpq.br/1501573193830736Calvete, Eunice Oliveirahttp://lattes.cnpq.br/9631039930870527Silva, Jocélia Rosa da2019-02-26T11:02:23Z2019-02-26T11:02:23Z2018-07-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/15751porAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2019-02-27T06:00:27Zoai:repositorio.ufsm.br:1/15751Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2019-02-27T06:00:27Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas Growth, development and productivity of camomile in different spacing between plants and sowing date |
title |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas |
spellingShingle |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas Silva, Jocélia Rosa da Chamomilla recutita Planta medicinal Variáveis meteorológicas Acúmulo de biomassa Competição intraespecífica Medicinal plant Meteorological variables Intraspecific competition Biomass accumulation CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas |
title_full |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas |
title_fullStr |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas |
title_full_unstemmed |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas |
title_sort |
Crescimento, desenvolvimento e produtividade da camomila em diferentes datas de semeadura e espaçamento entre plantas |
author |
Silva, Jocélia Rosa da |
author_facet |
Silva, Jocélia Rosa da |
author_role |
author |
dc.contributor.none.fl_str_mv |
Heldwein, Arno Bernardo http://lattes.cnpq.br/6671155842231311 Backes, Fernanda Alice Antonello Londero http://lattes.cnpq.br/1501573193830736 Calvete, Eunice Oliveira http://lattes.cnpq.br/9631039930870527 |
dc.contributor.author.fl_str_mv |
Silva, Jocélia Rosa da |
dc.subject.por.fl_str_mv |
Chamomilla recutita Planta medicinal Variáveis meteorológicas Acúmulo de biomassa Competição intraespecífica Medicinal plant Meteorological variables Intraspecific competition Biomass accumulation CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
topic |
Chamomilla recutita Planta medicinal Variáveis meteorológicas Acúmulo de biomassa Competição intraespecífica Medicinal plant Meteorological variables Intraspecific competition Biomass accumulation CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
Among the main factors that cause variation in the growth, development and productivity of chamomile and essential oil are the sowing date and plant spacing, but there is no consensus among researchers about the most appropriate spacing between plants, nor is there any indications regarding the date of sowing that aims at the maximum productive potential of chamomile for the climatic conditions of Santa Maria-RS. Thus, the main objectives of this work were to evaluate the growth, development and productivity of chapters and essential oil of chamomile in different sowing dates and spacing between plants, in addition to obtaining a model of leaf area for chamomile. An experiment was conducted in Santa Maria, RS, Brazil, with five sowing dates (03/18/2017, 04/28/2017, 06/30/2017, 07/28/2017 and 08/31/2017). Seven different spacing between plants were used, being 5, 10, 15, 20, 25, 30 and 40 cm. The variables used to obtain the leaf area model were leaf area (LA), leaf dry mass and specific leaf area (SLA) of chamomile. The growth variables were dry mass of leaves, reproductive structures and total aerial part of plants, as well as plant height, leaf area index and harvest index. The phenological variables reported were the accumulated thermal time for six subperiods in the interval between sowing and maturation, plastochron and final node number (FNN). The productive variables were the yield of dried floral chapters, yield and essential oil content. The spacing between plants, sowing date and phenological stage did not differ the SLA of the chamomile, being of 133 cm²g-1, as it did not differ, it was possible to obtain a single model for the LA estimation of chamomile. The model resulting from the LA data by the integrator presented optimum performance, being indicated for the determination of the LA of the chamomile when there is data of leaves dry mass. For the studied growth variables were no interaction between sowing date and plant spacing for the plants collected at different phenological stages, but both have an isolated effect on the growth of the chamomile. The sowing of March resulted in a greater growth of chamomile, and the sowing of August in smaller. In relation to the spacing between plants the spacing of 25 cm showed greater growth of the plants of chamomile. Regarding the phenological response, it should be noted that the spacing between plants did not influence the phenological development of the plants, but the date of sowing interfered with the thermal sum, plastochron and the final number of nodes. The dates of sowing affect the productivity of floral chapters, the content and productivity of chamomile essential oil.The highest values for these variables occur for the sowing performed on 18.03 and 28.04. There is a linear tendency to reduce the productivity of dry floral chapters of chamomile with increasing plant spacing in the row. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-07-16 2019-02-26T11:02:23Z 2019-02-26T11:02:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/15751 |
url |
http://repositorio.ufsm.br/handle/1/15751 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Agronomia UFSM Programa de Pós-Graduação em Agronomia Centro de Ciências Rurais |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Agronomia UFSM Programa de Pós-Graduação em Agronomia Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
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1805922158204944384 |