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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
03/03/2011 |
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Data da última atualização: |
15/03/2011 |
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Autoria: |
CARVALHO, C. H. S. de; BENTO, M. A.; MATIELLO, J. B.; ALMEIDA, S. R.; FERREIRA, R. A.; PADILHA, L.; VILELA, A. F. |
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Afiliação: |
CARLOS HENRIQUE S DE CARVALHO, SAPC; MAPA/FUNDAÇÃO PRÓ CAFÉ; MAPA/FUNDAÇÃO PRÓ CAFÉ; MAPA/FUNDAÇÃO PRÓ CAFÉ; MAPA/FUNDAÇÃO PRÓ CAFÉ; LILIAN PADILHA, SAPC; MAPA/FUNDAÇÃO PRÓ CAFÉ. |
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Título: |
Identification of coffee genotypes more adapted to areas with water deficit during fall and winter time. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 22., 2008, Campinas. |
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Idioma: |
Inglês |
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Conteúdo: |
Although most of the Brazilian coffee growing areas are located in regions with enough rainfall, a significant amount is cultivated in regions subjected to water deficit during fall and winter time. This situation reduces coffee yield, since Brazilian coffee cultivars are not adapted to this condition. This work was conducted to evaluate the response to irrigation and aiming to select coffee genotypes that are more adapted to environments subjected to water constrain. The work was carried out in Coromandel, MG, Brazil, a region characterized as marginal to coffee cultivation, due to the shortage of rainfall during fall and winter time. A field experiment was set in January of 2004 using a randomized block designed, with 30 genotypes, six plants per plot and four replications, with and without drip irrigation. During the first 2.5 years all the treatments were irrigated to allow proper plant growth and better
homogeneity. Yield (kg/tree) was evaluated in July 2007 and, in average, fruit production was increased in 50% due to irrigation in all the genotypes. The highest response to irrigation was observed in the late maturity genotypes, such as Red Obatã, Yellow Catucaí (late) line 30 cv. 2 and Yellow Bem-te-vi, with 223.3%, 120.9% and 110.9% of yield increase, respectively. On the other hand, the irrigation did not significantly increased fruit production of early maturity genotypes, as observed for Catucaí 785-15, Yellow Catucaí 24/137 (early) cv. 900 and Siriema. Since the early maturity cultivars differentiate flowers in the beginning of the
year, when water availability is still not a limiting factor, and the late maturity cultivars flower differentiation occurs later on, during the dry season, it is suggested that the early maturity cultivars are more adapted to those conditions. These data indicates that early maturity genotypes may be an interesting genetic source for the development of coffee cultivars more adapted to regions with low rainfall during fall/winter time. MenosAlthough most of the Brazilian coffee growing areas are located in regions with enough rainfall, a significant amount is cultivated in regions subjected to water deficit during fall and winter time. This situation reduces coffee yield, since Brazilian coffee cultivars are not adapted to this condition. This work was conducted to evaluate the response to irrigation and aiming to select coffee genotypes that are more adapted to environments subjected to water constrain. The work was carried out in Coromandel, MG, Brazil, a region characterized as marginal to coffee cultivation, due to the shortage of rainfall during fall and winter time. A field experiment was set in January of 2004 using a randomized block designed, with 30 genotypes, six plants per plot and four replications, with and without drip irrigation. During the first 2.5 years all the treatments were irrigated to allow proper plant growth and better
homogeneity. Yield (kg/tree) was evaluated in July 2007 and, in average, fruit production was increased in 50% due to irrigation in all the genotypes. The highest response to irrigation was observed in the late maturity genotypes, such as Red Obatã, Yellow Catucaí (late) line 30 cv. 2 and Yellow Bem-te-vi, with 223.3%, 120.9% and 110.9% of yield increase, respectively. On the other hand, the irrigation did not significantly increased fruit production of early maturity genotypes, as observed for Catucaí 785-15, Yellow Catucaí 24/137 (early) cv. 900 and Siriema. Since the ... Mostrar Tudo |
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Palavras-Chave: |
Coffee. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02630nam a2200193 a 4500
001 1879901
005 2011-03-15
008 2008 bl uuuu u01u1 u #d
100 1 $aCARVALHO, C. H. S. de
245 $aIdentification of coffee genotypes more adapted to areas with water deficit during fall and winter time.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 22., 2008, Campinas.$c2008
520 $aAlthough most of the Brazilian coffee growing areas are located in regions with enough rainfall, a significant amount is cultivated in regions subjected to water deficit during fall and winter time. This situation reduces coffee yield, since Brazilian coffee cultivars are not adapted to this condition. This work was conducted to evaluate the response to irrigation and aiming to select coffee genotypes that are more adapted to environments subjected to water constrain. The work was carried out in Coromandel, MG, Brazil, a region characterized as marginal to coffee cultivation, due to the shortage of rainfall during fall and winter time. A field experiment was set in January of 2004 using a randomized block designed, with 30 genotypes, six plants per plot and four replications, with and without drip irrigation. During the first 2.5 years all the treatments were irrigated to allow proper plant growth and better homogeneity. Yield (kg/tree) was evaluated in July 2007 and, in average, fruit production was increased in 50% due to irrigation in all the genotypes. The highest response to irrigation was observed in the late maturity genotypes, such as Red Obatã, Yellow Catucaí (late) line 30 cv. 2 and Yellow Bem-te-vi, with 223.3%, 120.9% and 110.9% of yield increase, respectively. On the other hand, the irrigation did not significantly increased fruit production of early maturity genotypes, as observed for Catucaí 785-15, Yellow Catucaí 24/137 (early) cv. 900 and Siriema. Since the early maturity cultivars differentiate flowers in the beginning of the year, when water availability is still not a limiting factor, and the late maturity cultivars flower differentiation occurs later on, during the dry season, it is suggested that the early maturity cultivars are more adapted to those conditions. These data indicates that early maturity genotypes may be an interesting genetic source for the development of coffee cultivars more adapted to regions with low rainfall during fall/winter time.
653 $aCoffee
700 1 $aBENTO, M. A.
700 1 $aMATIELLO, J. B.
700 1 $aALMEIDA, S. R.
700 1 $aFERREIRA, R. A.
700 1 $aPADILHA, L.
700 1 $aVILELA, A. F.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
10/09/2007 |
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Data da última atualização: |
27/02/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - A |
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Autoria: |
GOMES, D. P.; LEITE, R. M. V. B. de C.; PANIZZI, R. de C.; SILVA, G. C.; SOUZA, J. R. de. |
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Afiliação: |
DELINEIDE PEREIRA GOMES, FCAV/UNESP; REGINA MARIA VILLAS BOAS DE CAMPOS LEITE, CNPSO; RITA DE CÁSSIA PANIZZI, FCAV/UNESP; GILSON SOARES SILVA, UEMA; FCAV/UNESP. |
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Título: |
Influência da micoflora na qualidade fisiológica de sementes de girassol produzidas em Balsas, Maranhão. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, DF, v. 32, p. S182, ago. 2007. Suplemento, resumo 0362. |
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Idioma: |
Português |
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Notas: |
Edição dos Resumos do XL Congresso Brasileiro de Fitopatologia, Maringá, PR, ago. 2007. |
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Conteúdo: |
Entre os inúmeros problemas de ordem fisiológica do girassol, está a presença de fungos que ameaçam a qualidade fisiológica das sementes, principalmente, por provocar redução na germinação, no estande e morte de plântulas. O objetivo do trabalho foi verificar o efeito da incidência de fungos na qualidade fisiológica de sementes de girassol produzidas em Balsas, MA. Foram avaliados seis genótipos, na safra 2004. As sementes foram analisadas pelo método do papel de filtro, com 4 repetições de 50 sementes, com o auxílio do microscópio estereoscópico. As amostras também foram analisadas quanto a qualidade fisiológica, através do teste padrão de germinação (areia) e vigor (primeira contagem de germinação). Os resultados mostraram a alta incidência de fungos fitopatogênicos e de armazenamento nas sementes dos genótipos, entre estes, M 734 (24 % com Fusarium sp.), Agrobel 960 (10 % com Alternaria spp.), Embrapa 122 (47,9 % com Aspergillus spp.) e Agrobel 960 (13,5 % com Rhizopus sp.). Observaram-se índices baixos de vigor e de germinação em todos os genótipos. Devido aos altos índices de sementes com fungos, constatou-se a baixa qualidade fisiológica de sementes. |
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Thesagro: |
Girassol; Semente. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/98343/1/Influencia-da-micoflora-na-qualidade-fisiologica-de-sementes-de-girassol-produzidas-em-Balsas-Maranhao.pdf
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Marc: |
LEADER 01925naa a2200205 a 4500
001 1470240
005 2014-02-27
008 2007 bl uuuu u00u1 u #d
100 1 $aGOMES, D. P.
245 $aInfluência da micoflora na qualidade fisiológica de sementes de girassol produzidas em Balsas, Maranhão.
260 $c2007
500 $aEdição dos Resumos do XL Congresso Brasileiro de Fitopatologia, Maringá, PR, ago. 2007.
520 $aEntre os inúmeros problemas de ordem fisiológica do girassol, está a presença de fungos que ameaçam a qualidade fisiológica das sementes, principalmente, por provocar redução na germinação, no estande e morte de plântulas. O objetivo do trabalho foi verificar o efeito da incidência de fungos na qualidade fisiológica de sementes de girassol produzidas em Balsas, MA. Foram avaliados seis genótipos, na safra 2004. As sementes foram analisadas pelo método do papel de filtro, com 4 repetições de 50 sementes, com o auxílio do microscópio estereoscópico. As amostras também foram analisadas quanto a qualidade fisiológica, através do teste padrão de germinação (areia) e vigor (primeira contagem de germinação). Os resultados mostraram a alta incidência de fungos fitopatogênicos e de armazenamento nas sementes dos genótipos, entre estes, M 734 (24 % com Fusarium sp.), Agrobel 960 (10 % com Alternaria spp.), Embrapa 122 (47,9 % com Aspergillus spp.) e Agrobel 960 (13,5 % com Rhizopus sp.). Observaram-se índices baixos de vigor e de germinação em todos os genótipos. Devido aos altos índices de sementes com fungos, constatou-se a baixa qualidade fisiológica de sementes.
650 $aGirassol
650 $aSemente
700 1 $aLEITE, R. M. V. B. de C.
700 1 $aPANIZZI, R. de C.
700 1 $aSILVA, G. C.
700 1 $aSOUZA, J. R. de
773 $tFitopatologia Brasileira, Brasília, DF$gv. 32, p. S182, ago. 2007. Suplemento, resumo 0362.
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Embrapa Soja (CNPSO) |
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