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| 358. |  | CATANI, A. M. O que é capitalismo. 22 ed. São Paulo : Ed. Brasiliense, 1986. 139 p. il. ; 17 cm. (Coleção primeiros passos, 4)| Biblioteca(s): Biblioteca Rui Tendinha. |
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| Registros recuperados : 2.341 | |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
12/12/2019 |
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Data da última atualização: |
08/02/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
POSSE, S. C. P.; RODRIGUES, W. N.; COMÉRIO, M.; VOLPI, P. S.; VERDIN FILHO, A. C.; POSSE, R. P.; OLIVEIRA, V. de S.; DOUSSEAU, S. |
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Afiliação: |
Sheila Cristina Prucoli Posse, Incaper; Wagner Nunes Rodrigues, Incaper; Marcone Comério, Incaper; Paulo Sérgio Volpi, Incaper; Abraão Carlos Verdin Filho, Incaper; Robson Prucoli Posse, IFES Itapina; Vinicius de Souza Oliveira, IFES Itapina; Sara Dousseau Arantes, Incaper. |
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Título: |
Impact of dring methods over the germinative potenial of Conilon coffee of late maturation. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Coffee Science, Lavras, v. 14, n. 4, p. 484 - 492, oct./dec. 2019. |
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Idioma: |
Português |
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Conteúdo: |
This study aimed to evaluate the effect of different drying methods (regarding temperature and drying time) over the seed moisture and germination of seeds of Coffea canephora, harvested from genotypes of late maturation. For this end, seeds from selected genotypes were harvested and dried using two different methods: drying at 25 ˚C with natural circulation of air and drying at 35 ˚C with artificial circulation of air. The seeds were evaluated to quantify the loss of moisture content, and their germinative potential was assessed by parameters of germination speed, and the proportion of seedlings with healthy germination originated from them. The results show it is possible to apply different drying methods; using different systems, temperatures and times of exposure; to decrease the moisture content of seeds of C. canephora, from 50% (freshly harvested seeds from genotypes of late maturation, in July) to under 18% (dried seeds). Even if the initial stages of the drying process, while the seeds still present high moisture content, are similar for both methods, the method with artificial circulation of air at 35 ˚C promotes the drying speed and is able to achieve the lower levels of seed moisture using less than half of the time required by method with natural circulation of air at 25 ˚C. This faster moisture removal, however, has negative impacts over the germinative potential of the seeds, which are not observed for seeds subjected to the slow natural drying. MenosThis study aimed to evaluate the effect of different drying methods (regarding temperature and drying time) over the seed moisture and germination of seeds of Coffea canephora, harvested from genotypes of late maturation. For this end, seeds from selected genotypes were harvested and dried using two different methods: drying at 25 ˚C with natural circulation of air and drying at 35 ˚C with artificial circulation of air. The seeds were evaluated to quantify the loss of moisture content, and their germinative potential was assessed by parameters of germination speed, and the proportion of seedlings with healthy germination originated from them. The results show it is possible to apply different drying methods; using different systems, temperatures and times of exposure; to decrease the moisture content of seeds of C. canephora, from 50% (freshly harvested seeds from genotypes of late maturation, in July) to under 18% (dried seeds). Even if the initial stages of the drying process, while the seeds still present high moisture content, are similar for both methods, the method with artificial circulation of air at 35 ˚C promotes the drying speed and is able to achieve the lower levels of seed moisture using less than half of the time required by method with natural circulation of air at 25 ˚C. This faster moisture removal, however, has negative impacts over the germinative potential of the seeds, which are not observed for seeds subjected to the slow natural dr... Mostrar Tudo |
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Palavras-Chave: |
Café; Conilon. |
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Thesagro: |
Café Robusta; Cafeicultura; Produção de Sementes; Propagação Vegetativa. |
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Thesaurus NAL: |
Coffea canephora; Germination; Propagation; Seeds; Storage; Water content. |
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Categoria do assunto: |
-- |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/3948/1/coniloncofee-latematuration-posse.pdf
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Marc: |
LEADER 02479naa a2200349 a 4500
001 1022053
005 2021-02-08
008 2019 bl uuuu u00u1 u #d
100 1 $aPOSSE, S. C. P.
245 $aImpact of dring methods over the germinative potenial of Conilon coffee of late maturation.$h[electronic resource]
260 $c2019
520 $aThis study aimed to evaluate the effect of different drying methods (regarding temperature and drying time) over the seed moisture and germination of seeds of Coffea canephora, harvested from genotypes of late maturation. For this end, seeds from selected genotypes were harvested and dried using two different methods: drying at 25 ˚C with natural circulation of air and drying at 35 ˚C with artificial circulation of air. The seeds were evaluated to quantify the loss of moisture content, and their germinative potential was assessed by parameters of germination speed, and the proportion of seedlings with healthy germination originated from them. The results show it is possible to apply different drying methods; using different systems, temperatures and times of exposure; to decrease the moisture content of seeds of C. canephora, from 50% (freshly harvested seeds from genotypes of late maturation, in July) to under 18% (dried seeds). Even if the initial stages of the drying process, while the seeds still present high moisture content, are similar for both methods, the method with artificial circulation of air at 35 ˚C promotes the drying speed and is able to achieve the lower levels of seed moisture using less than half of the time required by method with natural circulation of air at 25 ˚C. This faster moisture removal, however, has negative impacts over the germinative potential of the seeds, which are not observed for seeds subjected to the slow natural drying.
650 $aCoffea canephora
650 $aGermination
650 $aPropagation
650 $aSeeds
650 $aStorage
650 $aWater content
650 $aCafé Robusta
650 $aCafeicultura
650 $aProdução de Sementes
650 $aPropagação Vegetativa
653 $aCafé
653 $aConilon
700 1 $aRODRIGUES, W. N.
700 1 $aCOMÉRIO, M.
700 1 $aVOLPI, P. S.
700 1 $aVERDIN FILHO, A. C.
700 1 $aPOSSE, R. P.
700 1 $aOLIVEIRA, V. de S.
700 1 $aDOUSSEAU, S.
773 $tCoffee Science, Lavras$gv. 14, n. 4, p. 484 - 492, oct./dec. 2019.
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Biblioteca Rui Tendinha (BRT) |
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