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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
11/03/2022 |
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Data da última atualização: |
11/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
POSSE, S. C. P.; RODRIGUES, W. N.; COMÉRIO, M.; DOUSSEAU, S.; POSSE, R. P.; VERDIN FILHO, A. C.; SENRA, J. F. de B.; VOLPI, P. S.; MACHADO FILHO, J. A. |
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Afiliação: |
Sheila Cristina Prucoli Posse, Incaper; Wagner Nunes Rodrigues, Incaper; Marcone Comério, Incaper; Sara Dousseau Arantes, Incaper; Robson Prucoli Posse, UENF; Abraão Carlos Verdin Filho, Incaper; João Felipe de Brites Senra, Incaper; Paulo Sérgio Volpi, Incaper; José Altino Machado Filho, Incaper. |
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Título: |
The intensity of the drying process influencing the germinative potential of seeds of Coffea canephora harvested from genotypes of early maturation. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Pensar Acadêmico, Manhuaçu, v.20, n.1, p. 1-15, 2022. |
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Idioma: |
Português |
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Conteúdo: |
Several physical, chemical, and biological attributes of coffee seeds can be influenced by the drying and storage conditions. To propagate the recommended cultivars using seeds, it is often necessary to grow seedlings from genotypes of different maturation cycles, for which the mature seeds are only available in different moments throughout the year. This study aimed to test the germination of seeds of Coffea canephora Pierre ex A. Froehner from genotypes of early maturation, after being subjected to different periods of natural or artificial drying. For this end, two trials were developed, following split-plot (in time) scheme and completely randomized design, to study the moisture content of seed dried by two different drying process along 27 periods (between 0 and 320 hours), and the germinative potential, based on the germination speed index and proportion of germinated seeds after 30 days, of seeds dried by two drying process and 12 levels of seed moisture (between 50% and 8%). The results show that artificial drying at 35 ˚C removes seed moisture faster than the natural drying at 25 ˚C. Both drying methods can be used for decreasing seed moisture. However, the faster water loss negatively affects the germinative potential of seeds of genotypes of C. canephora of early maturation. The natural drying at 25 ˚C seems to have lesser impacts over the germination process, which may represent a good alternative if the seeds are stored at low levels of moisture.
Vários atributos físicos, químicos e biológicos das sementes de café podem ser influenciados pelas condições de secagem e armazenamento. Para propagar as cultivares recomendadas usando sementes, muitas vezes é necessário cultivar mudas de genótipos de diferentes ciclos de maturação, para as quais as sementes maduras só estão disponíveis em diferentes momentos ao longo do ano. Este trabalho teve como objetivo testar a germinação de sementes de Coffea canephora Pierre ex A. Froehner a partir de genótipos de maturação precoce, após serem submetidas a diferentes períodos de secagem natural ou artificial. Para tanto, foram desenvolvidos dois ensaios, em esquema de parcelas subdivididas (no tempo) e delineamento inteiramente casualizado, para estudar o teor de umidade de sementes secas por dois diferentes processos de secagem ao longo de 27 períodos (entre 0 e 320 horas), e a germinação potencial, baseado no índice de velocidade de germinação e proporção de sementes germinadas após 30 dias, de sementes secas por dois processos de secagem e 12 níveis de umidade das sementes (entre 50% e 8%). Os resultados mostram que a secagem artificial a 35˚C remove as sementes mais rapidamente do que a umidade de secagem natural a 25˚C. Ambos os métodos de secagem podem ser usados para diminuir a umidade das sementes. No entanto, a perda de água mais rápida afeta negativamente o potencial germinativo de sementes de genótipos de C. canephora de maturação precoce. A secagem natural a 25˚C parece ter menor impacto sobre o processo de germinação, o que pode representar uma boa alternativa se as sementes forem armazenadas em baixos níveis de umidade. MenosSeveral physical, chemical, and biological attributes of coffee seeds can be influenced by the drying and storage conditions. To propagate the recommended cultivars using seeds, it is often necessary to grow seedlings from genotypes of different maturation cycles, for which the mature seeds are only available in different moments throughout the year. This study aimed to test the germination of seeds of Coffea canephora Pierre ex A. Froehner from genotypes of early maturation, after being subjected to different periods of natural or artificial drying. For this end, two trials were developed, following split-plot (in time) scheme and completely randomized design, to study the moisture content of seed dried by two different drying process along 27 periods (between 0 and 320 hours), and the germinative potential, based on the germination speed index and proportion of germinated seeds after 30 days, of seeds dried by two drying process and 12 levels of seed moisture (between 50% and 8%). The results show that artificial drying at 35 ˚C removes seed moisture faster than the natural drying at 25 ˚C. Both drying methods can be used for decreasing seed moisture. However, the faster water loss negatively affects the germinative potential of seeds of genotypes of C. canephora of early maturation. The natural drying at 25 ˚C seems to have lesser impacts over the germination process, which may represent a good alternative if the seeds are stored at low levels of moisture.
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Palavras-Chave: |
Café conilon. |
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Thesagro: |
Armazenamento; Coffea Canephora; Conservação; Propagação Vegetativa. |
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Thesaurus NAL: |
Coffea. |
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Categoria do assunto: |
-- |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/item/4089/1/coffeacanephora-posse.pdf
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Marc: |
LEADER 04103naa a2200289 a 4500
001 1023797
005 2022-03-11
008 2022 bl uuuu u00u1 u #d
100 1 $aPOSSE, S. C. P.
245 $aThe intensity of the drying process influencing the germinative potential of seeds of Coffea canephora harvested from genotypes of early maturation.$h[electronic resource]
260 $c2022
520 $aSeveral physical, chemical, and biological attributes of coffee seeds can be influenced by the drying and storage conditions. To propagate the recommended cultivars using seeds, it is often necessary to grow seedlings from genotypes of different maturation cycles, for which the mature seeds are only available in different moments throughout the year. This study aimed to test the germination of seeds of Coffea canephora Pierre ex A. Froehner from genotypes of early maturation, after being subjected to different periods of natural or artificial drying. For this end, two trials were developed, following split-plot (in time) scheme and completely randomized design, to study the moisture content of seed dried by two different drying process along 27 periods (between 0 and 320 hours), and the germinative potential, based on the germination speed index and proportion of germinated seeds after 30 days, of seeds dried by two drying process and 12 levels of seed moisture (between 50% and 8%). The results show that artificial drying at 35 ˚C removes seed moisture faster than the natural drying at 25 ˚C. Both drying methods can be used for decreasing seed moisture. However, the faster water loss negatively affects the germinative potential of seeds of genotypes of C. canephora of early maturation. The natural drying at 25 ˚C seems to have lesser impacts over the germination process, which may represent a good alternative if the seeds are stored at low levels of moisture. Vários atributos físicos, químicos e biológicos das sementes de café podem ser influenciados pelas condições de secagem e armazenamento. Para propagar as cultivares recomendadas usando sementes, muitas vezes é necessário cultivar mudas de genótipos de diferentes ciclos de maturação, para as quais as sementes maduras só estão disponíveis em diferentes momentos ao longo do ano. Este trabalho teve como objetivo testar a germinação de sementes de Coffea canephora Pierre ex A. Froehner a partir de genótipos de maturação precoce, após serem submetidas a diferentes períodos de secagem natural ou artificial. Para tanto, foram desenvolvidos dois ensaios, em esquema de parcelas subdivididas (no tempo) e delineamento inteiramente casualizado, para estudar o teor de umidade de sementes secas por dois diferentes processos de secagem ao longo de 27 períodos (entre 0 e 320 horas), e a germinação potencial, baseado no índice de velocidade de germinação e proporção de sementes germinadas após 30 dias, de sementes secas por dois processos de secagem e 12 níveis de umidade das sementes (entre 50% e 8%). Os resultados mostram que a secagem artificial a 35˚C remove as sementes mais rapidamente do que a umidade de secagem natural a 25˚C. Ambos os métodos de secagem podem ser usados para diminuir a umidade das sementes. No entanto, a perda de água mais rápida afeta negativamente o potencial germinativo de sementes de genótipos de C. canephora de maturação precoce. A secagem natural a 25˚C parece ter menor impacto sobre o processo de germinação, o que pode representar uma boa alternativa se as sementes forem armazenadas em baixos níveis de umidade.
650 $aCoffea
650 $aArmazenamento
650 $aCoffea Canephora
650 $aConservação
650 $aPropagação Vegetativa
653 $aCafé conilon
700 1 $aRODRIGUES, W. N.
700 1 $aCOMÉRIO, M.
700 1 $aDOUSSEAU, S.
700 1 $aPOSSE, R. P.
700 1 $aVERDIN FILHO, A. C.
700 1 $aSENRA, J. F. de B.
700 1 $aVOLPI, P. S.
700 1 $aMACHADO FILHO, J. A.
773 $tPensar Acadêmico, Manhuaçu$gv.20, n.1, p. 1-15, 2022.
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
19/11/2020 |
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Data da última atualização: |
19/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CRESPO, A. M.; SOUZA, M. N.; FAVARATO, L. F.; GUARÇONI, R. G.; ARAÚJO, J. B. S.; RANGEL, O. J. P.; SOUZA, J. L. de. |
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Afiliação: |
Aline Marchiori Crespo, Incaper; Maurício Novaes Souza, IFEZ Alegre; Luiz Fernando Favarato, Incaper; Rogerio Carvalho Guarçoni, Incaper; João Batista Silva Araújo, Incaper; Otacílio José Passos Rangel, IFES Alegre; Jacimar Luis de Souza, Incaper. |
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Título: |
Survey of the floristic composition and the structure of spontaneous vegetation present at green corn cultivated in organic no-tillage system. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
IJAERS, v. 7, n. 11, p. 184-193, nov. 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
The control of spontaneous plants is one of the biggest challenges faced by organic no-tillage system (NTS). Thus, the use of cultural practices that help on it becomes relevant. The objective of this research was to evaluate the population density, the level of infestation and fresh and dry weight of
spontaneous plants community of the green corn cultivated in organic NTS. The trial was conducted in a randomized block design, with six replications and five treatments, consisting of three soil coverings in the organic NTS and organic and conventional systems using intensive soil tillage without covering. For soil covered treatments was used millet as grass specie and sunn hemp as leguminous specie as well as the intercropping between both species. The green corn (AG 1051 hybrid) was sowed at 1.0 m. between rows and 0.20 m. between plants. Infestation, density and fresh weight and dry weight evaluations of spontaneous plants were performed on the V5 (five developed leaves) stage of corn. The use of single millet straw and intercropped straw provided a reduction of the infestation percentage and absolute spontaneous plants density. Both organic and conventional intensive soil tillage systems without covering showed higher relative density for the specie Galinsoga quadriradiata. The highest relative densities in organic NTS were attributed to Amaranthus spp., C. rotundus and Oxalis spp.. The percentage of infestation by spontaneous plants did not reach the level of economic damage in any of the treatments studied since the average productivity of ears without straw had been within the Brazilian average (9,000 to 15,000 Kg ha MenosThe control of spontaneous plants is one of the biggest challenges faced by organic no-tillage system (NTS). Thus, the use of cultural practices that help on it becomes relevant. The objective of this research was to evaluate the population density, the level of infestation and fresh and dry weight of
spontaneous plants community of the green corn cultivated in organic NTS. The trial was conducted in a randomized block design, with six replications and five treatments, consisting of three soil coverings in the organic NTS and organic and conventional systems using intensive soil tillage without covering. For soil covered treatments was used millet as grass specie and sunn hemp as leguminous specie as well as the intercropping between both species. The green corn (AG 1051 hybrid) was sowed at 1.0 m. between rows and 0.20 m. between plants. Infestation, density and fresh weight and dry weight evaluations of spontaneous plants were performed on the V5 (five developed leaves) stage of corn. The use of single millet straw and intercropped straw provided a reduction of the infestation percentage and absolute spontaneous plants density. Both organic and conventional intensive soil tillage systems without covering showed higher relative density for the specie Galinsoga quadriradiata. The highest relative densities in organic NTS were attributed to Amaranthus spp., C. rotundus and Oxalis spp.. The percentage of infestation by spontaneous plants did not reach the level of economic dam... Mostrar Tudo |
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Thesagro: |
Agricultura Orgânica; Crotalária Juncea; Erva Daninha; Pennisetum Americanum; Plantio Direto. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/4120/1/crespo-plantio-direto.pdf
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Marc: |
LEADER 02446naa a2200253 a 4500
001 1022965
005 2020-11-19
008 2020 bl uuuu u00u1 u #d
100 1 $aCRESPO, A. M.
245 $aSurvey of the floristic composition and the structure of spontaneous vegetation present at green corn cultivated in organic no-tillage system.$h[electronic resource]
260 $c2020
520 $aThe control of spontaneous plants is one of the biggest challenges faced by organic no-tillage system (NTS). Thus, the use of cultural practices that help on it becomes relevant. The objective of this research was to evaluate the population density, the level of infestation and fresh and dry weight of spontaneous plants community of the green corn cultivated in organic NTS. The trial was conducted in a randomized block design, with six replications and five treatments, consisting of three soil coverings in the organic NTS and organic and conventional systems using intensive soil tillage without covering. For soil covered treatments was used millet as grass specie and sunn hemp as leguminous specie as well as the intercropping between both species. The green corn (AG 1051 hybrid) was sowed at 1.0 m. between rows and 0.20 m. between plants. Infestation, density and fresh weight and dry weight evaluations of spontaneous plants were performed on the V5 (five developed leaves) stage of corn. The use of single millet straw and intercropped straw provided a reduction of the infestation percentage and absolute spontaneous plants density. Both organic and conventional intensive soil tillage systems without covering showed higher relative density for the specie Galinsoga quadriradiata. The highest relative densities in organic NTS were attributed to Amaranthus spp., C. rotundus and Oxalis spp.. The percentage of infestation by spontaneous plants did not reach the level of economic damage in any of the treatments studied since the average productivity of ears without straw had been within the Brazilian average (9,000 to 15,000 Kg ha
650 $aAgricultura Orgânica
650 $aCrotalária Juncea
650 $aErva Daninha
650 $aPennisetum Americanum
650 $aPlantio Direto
700 1 $aSOUZA, M. N.
700 1 $aFAVARATO, L. F.
700 1 $aGUARÇONI, R. G.
700 1 $aARAÚJO, J. B. S.
700 1 $aRANGEL, O. J. P.
700 1 $aSOUZA, J. L. de.
773 $tIJAERS$gv. 7, n. 11, p. 184-193, nov. 2020.
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Biblioteca Rui Tendinha (BRT) |
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