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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
04/12/2020 |
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Data da última atualização: |
07/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, I. G. dos; TEODORO, P. E.; CRUZ, C. D.; FERREIRA, R. de P. |
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Afiliação: |
Iara Gonçalves dos Santos, UFV; Paulo Eduardo Teodoro, UFMS; Cosme Damião Cruz, UFV; REINALDO DE PAULA FERREIRA, CPPSE. |
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Título: |
Impact of water deficit in the relationship among alfafa traits. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Bioscience Journal, Uberlândia, v. 36, n. 3, p. 905-913, may-jun. 2020 |
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DOI: |
http://dx.doi.org/10.14393/BJ-v36n3a2020-41869 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to evaluate the relationship among traits related to yield and nutritive value of alfalfa genotypes grown under deficit and full irrigation conditions. Seventy-seven alfalfa genotypes were evaluated in two different cuts, the first one with full irrigation, and the second, with water deficit. A randomized block design with three replications was used. The evaluated traits were vigor, plant height, dry matter biomass, stem-to-leaf ratio, dry matter percentage, leaf and stem protein contents, in vitro dry matter digestibility, neutral detergent fiber, acid detergent fiber, and lignin. Significant interaction between genotypes and environments was reported for vigor, plant height, and lignin. The correlation between traits and path analysis of dry matter biomass was performed for each cut, aiming to identify auxiliary traits for indirect selection. Water availability did not alter the phenotypic and genotypic correlations, only their magnitudes. Regardless of the environment, plant height is one of the most promising traits for the selection of alfalfa genotypes with higher dry matter biomass since it showed a high direct effect in the same sense of its phenotypic correlations. However, the coefficient of determination obtained by the model applied to full irrigation was higher than that of the water-deficit environment, indicating the importance of variables not included in this study in the determination of alfalfa dry matter biomass under dry conditions. |
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Palavras-Chave: |
Correlations; Dry matter biomass; Path analysis. |
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Thesagro: |
Medicago Sativa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218762/1/ImpactWaterDeficit.pdf
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Marc: |
LEADER 02169naa a2200217 a 4500
001 2127660
005 2020-12-07
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.14393/BJ-v36n3a2020-41869$2DOI
100 1 $aSANTOS, I. G. dos
245 $aImpact of water deficit in the relationship among alfafa traits.$h[electronic resource]
260 $c2020
520 $aThis study aimed to evaluate the relationship among traits related to yield and nutritive value of alfalfa genotypes grown under deficit and full irrigation conditions. Seventy-seven alfalfa genotypes were evaluated in two different cuts, the first one with full irrigation, and the second, with water deficit. A randomized block design with three replications was used. The evaluated traits were vigor, plant height, dry matter biomass, stem-to-leaf ratio, dry matter percentage, leaf and stem protein contents, in vitro dry matter digestibility, neutral detergent fiber, acid detergent fiber, and lignin. Significant interaction between genotypes and environments was reported for vigor, plant height, and lignin. The correlation between traits and path analysis of dry matter biomass was performed for each cut, aiming to identify auxiliary traits for indirect selection. Water availability did not alter the phenotypic and genotypic correlations, only their magnitudes. Regardless of the environment, plant height is one of the most promising traits for the selection of alfalfa genotypes with higher dry matter biomass since it showed a high direct effect in the same sense of its phenotypic correlations. However, the coefficient of determination obtained by the model applied to full irrigation was higher than that of the water-deficit environment, indicating the importance of variables not included in this study in the determination of alfalfa dry matter biomass under dry conditions.
650 $aMedicago Sativa
653 $aCorrelations
653 $aDry matter biomass
653 $aPath analysis
700 1 $aTEODORO, P. E.
700 1 $aCRUZ, C. D.
700 1 $aFERREIRA, R. de P.
773 $tBioscience Journal, Uberlândia$gv. 36, n. 3, p. 905-913, may-jun. 2020
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
04/01/2024 |
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Data da última atualização: |
04/01/2024 |
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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: |
BELAN, L. L.; JESUS JUNIOR, W. C. de; SOUZA, A. F. de; ZAMBOLIM, L.; TOMAZ, M. A.; ALVES, F. R.; FERRAO, M. A. G.; AMARAL, J. F. T. do. |
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Afiliação: |
LEÔNIDAS LEONI BELAN, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; WALDIR CINTRA DE JESUS JUNIOR, UNIVERSIDADE FEDERAL DE SÃO CARLOS; ANTÔNIO FERNANDO DE SOUZA, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ESPÍRITO SANTO; LAÉRCIO ZAMBOLIM, UNIVERSIDADE FEDERAL DE VIÇOSA; MARCELO ANTONIO TOMAZ, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; FÁBIO RAMOS ALVES, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; MARIA AMELIA GAVA FERRAO, CNPCa; JOSÉ FRANCISCO TEIXEIRA DO AMARAL, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO. |
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Título: |
Monitoring of leaf rust in conilon coffee clones to improve fungicide use |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Australasian Plant Pathology, v. 44, n. 1, p. 5-12, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
The main management strategy for coffee leaf rust (Hemileia vastatrix) in conilon coffee is based on the application of fungicides using a fixed schedule without considering the epidemiological aspects of the disease. In order to turn chemical control less subjective and more efficient, two systems of coffee leaf rust management were tested: 1) application of systemic fungicide based on the intensity of the disease present in each conilon clone of the "Conilon Vitria" variety, according to the disease incidence; threshold of 5 % incidence of the disease was adopted to spray the fungicide, and 2) application of systemic fungicide to the soil, followed by foliar application in the beginning of the rainy season. The experiments were performed in two municipalities of the Espirito Santo State, Nova Ven,cia e Castelo. Monthly evaluations of disease incidence were performed between September 2010 and August 2011. The results showed that chemical control of coffee leaf rust in conilon coffee should be performed differently, for each clone, of the clonal Vitoria variety. The 5 % threshold of the disease incidence was reached at different time of the coffee grower season. The strategy to apply systemic fungicide to the leaves, to control conilon leaf rust, based on the disease incidence of 5 % was more effective than soil application system. Application of systemic fungicide to the soil did not control the disease. In conclusion, monitoring the incidence of coffee leaf rust in all the clones is an important strategy to decide the appropriate time to apply fungicides. MenosThe main management strategy for coffee leaf rust (Hemileia vastatrix) in conilon coffee is based on the application of fungicides using a fixed schedule without considering the epidemiological aspects of the disease. In order to turn chemical control less subjective and more efficient, two systems of coffee leaf rust management were tested: 1) application of systemic fungicide based on the intensity of the disease present in each conilon clone of the "Conilon Vitria" variety, according to the disease incidence; threshold of 5 % incidence of the disease was adopted to spray the fungicide, and 2) application of systemic fungicide to the soil, followed by foliar application in the beginning of the rainy season. The experiments were performed in two municipalities of the Espirito Santo State, Nova Ven,cia e Castelo. Monthly evaluations of disease incidence were performed between September 2010 and August 2011. The results showed that chemical control of coffee leaf rust in conilon coffee should be performed differently, for each clone, of the clonal Vitoria variety. The 5 % threshold of the disease incidence was reached at different time of the coffee grower season. The strategy to apply systemic fungicide to the leaves, to control conilon leaf rust, based on the disease incidence of 5 % was more effective than soil application system. Application of systemic fungicide to the soil did not control the disease. In conclusion, monitoring the incidence of coffee leaf rust in all th... Mostrar Tudo |
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Thesagro: |
Coffea Canephora; Hemileia Vastatrix. |
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Thesaurus NAL: |
Chemical control; Clones; Disease control; Integrated agricultural systems. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02391naa a2200277 a 4500
001 2160446
005 2024-01-04
008 2015 bl uuuu u00u1 u #d
100 1 $aBELAN, L. L.
245 $aMonitoring of leaf rust in conilon coffee clones to improve fungicide use$h[electronic resource]
260 $c2015
520 $aThe main management strategy for coffee leaf rust (Hemileia vastatrix) in conilon coffee is based on the application of fungicides using a fixed schedule without considering the epidemiological aspects of the disease. In order to turn chemical control less subjective and more efficient, two systems of coffee leaf rust management were tested: 1) application of systemic fungicide based on the intensity of the disease present in each conilon clone of the "Conilon Vitria" variety, according to the disease incidence; threshold of 5 % incidence of the disease was adopted to spray the fungicide, and 2) application of systemic fungicide to the soil, followed by foliar application in the beginning of the rainy season. The experiments were performed in two municipalities of the Espirito Santo State, Nova Ven,cia e Castelo. Monthly evaluations of disease incidence were performed between September 2010 and August 2011. The results showed that chemical control of coffee leaf rust in conilon coffee should be performed differently, for each clone, of the clonal Vitoria variety. The 5 % threshold of the disease incidence was reached at different time of the coffee grower season. The strategy to apply systemic fungicide to the leaves, to control conilon leaf rust, based on the disease incidence of 5 % was more effective than soil application system. Application of systemic fungicide to the soil did not control the disease. In conclusion, monitoring the incidence of coffee leaf rust in all the clones is an important strategy to decide the appropriate time to apply fungicides.
650 $aChemical control
650 $aClones
650 $aDisease control
650 $aIntegrated agricultural systems
650 $aCoffea Canephora
650 $aHemileia Vastatrix
700 1 $aJESUS JUNIOR, W. C. de
700 1 $aSOUZA, A. F. de
700 1 $aZAMBOLIM, L.
700 1 $aTOMAZ, M. A.
700 1 $aALVES, F. R.
700 1 $aFERRAO, M. A. G.
700 1 $aAMARAL, J. F. T. do
773 $tAustralasian Plant Pathology$gv. 44, n. 1, p. 5-12, 2015.
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