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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
05/05/2011 |
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Data da última atualização: |
05/05/2011 |
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Autoria: |
CARDOSO, J. C; ONO, E. O.; RODRIGUES, J. D. |
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Título: |
Gibberellic acid and water regime in the flowering induction of Brassocattleya and Cattleya hybrid orchids. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Horticultura Brasileira, v. 28, n. 4, p. 395-398, out./dez. 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
No presente trabalho foi avaliada a influência do ácido giberélico e do regime hídrico na indução e qualidade do florescimento de duas orquídeas híbridas dos gêneros Cattleya (C.) e Brassocattleya (Bc.). O experimento foi realizado no Setor de Biotecnologia e Orquidicultura da Fundação Shunji Nishimura de Tecnologia, Pompéia-SP. Foram testadas cinco concentrações de GA3 (0, 125, 250, 500 e 1.000 mg L-1) em quatro aplicações consecutivas via pulverização foliar, em plantas adultas que já haviam florescido ao menos uma vez, além de duas condições hídricas (uma e quatro irrigações por semana). As aplicações foram feitas nos meses de outubro e novembro para Bc. Marcella Koss e janeiro e fevereiro para C. Irene Holguin. Não foi possível induzir a floração em Cattleya Irene Holguin com o uso de ácido giberélico. Para Bc. Marcella Koss, a aplicação de 250 mg L-¹ de GA3, associado à diminuição na frequência de irrigação, induziu cerca de 83% das plantas ao florescimento. Na mesma concentração de GA3, porém em condições de irrigação frequente, apenas 17% das plantas foram induzidas a florescer. O número e o tamanho das flores aumentaram com a aplicação de concentrações maiores de GA3 utilizadas no experimento. A realização deste trabalho permitiu desenvolver uma técnica comercial com o uso de ácido giberélico (GA3) para a indução do florescimento do híbrido de orquídea Bc. Marcella Koss. |
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Palavras-Chave: |
Ácido giberélico; Floração; Orquídea; Planta ornamental; Pulverização; Qualidade; Regulador vegetal; Supressão de água. |
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Categoria do assunto: |
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Marc: |
LEADER 02169naa a2200241 a 4500
001 1076157
005 2011-05-05
008 2010 bl uuuu u00u1 u #d
100 1 $aCARDOSO, J. C
245 $aGibberellic acid and water regime in the flowering induction of Brassocattleya and Cattleya hybrid orchids.
260 $c2010
520 $aNo presente trabalho foi avaliada a influência do ácido giberélico e do regime hídrico na indução e qualidade do florescimento de duas orquídeas híbridas dos gêneros Cattleya (C.) e Brassocattleya (Bc.). O experimento foi realizado no Setor de Biotecnologia e Orquidicultura da Fundação Shunji Nishimura de Tecnologia, Pompéia-SP. Foram testadas cinco concentrações de GA3 (0, 125, 250, 500 e 1.000 mg L-1) em quatro aplicações consecutivas via pulverização foliar, em plantas adultas que já haviam florescido ao menos uma vez, além de duas condições hídricas (uma e quatro irrigações por semana). As aplicações foram feitas nos meses de outubro e novembro para Bc. Marcella Koss e janeiro e fevereiro para C. Irene Holguin. Não foi possível induzir a floração em Cattleya Irene Holguin com o uso de ácido giberélico. Para Bc. Marcella Koss, a aplicação de 250 mg L-¹ de GA3, associado à diminuição na frequência de irrigação, induziu cerca de 83% das plantas ao florescimento. Na mesma concentração de GA3, porém em condições de irrigação frequente, apenas 17% das plantas foram induzidas a florescer. O número e o tamanho das flores aumentaram com a aplicação de concentrações maiores de GA3 utilizadas no experimento. A realização deste trabalho permitiu desenvolver uma técnica comercial com o uso de ácido giberélico (GA3) para a indução do florescimento do híbrido de orquídea Bc. Marcella Koss.
653 $aÁcido giberélico
653 $aFloração
653 $aOrquídea
653 $aPlanta ornamental
653 $aPulverização
653 $aQualidade
653 $aRegulador vegetal
653 $aSupressão de água
700 1 $aONO, E. O.
700 1 $aRODRIGUES, J. D.
773 $tHorticultura Brasileira$gv. 28, n. 4, p. 395-398, out./dez. 2010.
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
11/09/2017 |
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Data da última atualização: |
11/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - B |
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Autoria: |
KAVALCO, S. A. F.; CARVALHO, I. R.; NARDINO, M.; SZARESKI, V. J.; MEIRA, D.; FOLLMANN, D. N.; PELEGRIN, A. J.; FERRARI, M.; DEMARI, G. H.; SOUZA, V. Q. |
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Título: |
Morphology and physiology of Tifton development. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
AUSTRALIAN JOURNAL OF BASIC AND APPLIED SCIENCES, Australia, v. 10, n. 8, p. 181-187, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The different genotypes of Tifton won economic importance among the forage, the higher dry mass yield, greater response to fertilization, higher digestibility, higher crude protein content and ratio of calcium and phosphorus in relation to other forages of Cynodon. The fall of the nutritional value of the function in pastures plant growth is related to the following factors: reduction in protein and phosphorus, with the aging of the plant is increased stem/leaf relationship. The aim of this study was to obtain estimates of the morphological and physiological development of Tifton genotypes, with the use of regression analysis and the breakdown of correlations in direct and indirect effects by path analysis, valued at ten different growing seasons. Methods: The study was conducted in Plant Breeding and Plant Production Laboratory, Federal University of Santa Maria, Campus Frederico Westphalen, coordinates (27º23'26 "S latitude), (53º25'43" The longitude) and 461,3m altitude in the crop year 2013. Were used for the experiments three genotypes Tifton (Cynodon spp.), they Tifton-68, Tifton-85 and Jiggs. The experimental design was a randomized block design with three replications. Each experimental unit consisted of six plants from pasture production unit at the University, were transplanted to the experimental area so that each plant were obtained from three stolons, two below and above ground. Results: By analyzing the regressions (Figure 1), where the Tifton-85 genotype was characterized by red, the Jiggs by green and Tifton-68 by the color blue, it was observed that the plant height (PH) showed linear growth during development culture, being explained by first-degree equations, with the most outstanding genotype the Tifton 85, its highest growth in relation to the others. It is observed also that the regression coefficients for the Tifton-85 genotypes (89.98%), Jiggs (92.37%) and Tifton-68 (92.58%) explained much of the variation between the evaluation seasons. Conclusions: To getting the genotypes with greater protein content, is necessary the selection plants with greater stolon diameter, leaf width, leaf length, lower number of tillers, green mass and dry mass. In a general way, the Tifton 85 genotype has greater highlight cultivation aiming greater development, resulting in a higher green mass, dry mass and chlorophyll content, however, when it aims genotypes that have high protein content, should have some caution, since the negative correlation seen between this and the traits green mass and dry mass. MenosThe different genotypes of Tifton won economic importance among the forage, the higher dry mass yield, greater response to fertilization, higher digestibility, higher crude protein content and ratio of calcium and phosphorus in relation to other forages of Cynodon. The fall of the nutritional value of the function in pastures plant growth is related to the following factors: reduction in protein and phosphorus, with the aging of the plant is increased stem/leaf relationship. The aim of this study was to obtain estimates of the morphological and physiological development of Tifton genotypes, with the use of regression analysis and the breakdown of correlations in direct and indirect effects by path analysis, valued at ten different growing seasons. Methods: The study was conducted in Plant Breeding and Plant Production Laboratory, Federal University of Santa Maria, Campus Frederico Westphalen, coordinates (27º23'26 "S latitude), (53º25'43" The longitude) and 461,3m altitude in the crop year 2013. Were used for the experiments three genotypes Tifton (Cynodon spp.), they Tifton-68, Tifton-85 and Jiggs. The experimental design was a randomized block design with three replications. Each experimental unit consisted of six plants from pasture production unit at the University, were transplanted to the experimental area so that each plant were obtained from three stolons, two below and above ground. Results: By analyzing the regressions (Figure 1), where the Tifton-85 genotype was c... Mostrar Tudo |
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Palavras-Chave: |
Cynodon spp; genotypes behavior; indirect selection; path analysis; Regression. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 03368naa a2200289 a 4500
001 1126631
005 2017-09-11
008 2016 bl uuuu u00u1 u #d
100 1 $aKAVALCO, S. A. F.
245 $aMorphology and physiology of Tifton development.$h[electronic resource]
260 $c2016
520 $aThe different genotypes of Tifton won economic importance among the forage, the higher dry mass yield, greater response to fertilization, higher digestibility, higher crude protein content and ratio of calcium and phosphorus in relation to other forages of Cynodon. The fall of the nutritional value of the function in pastures plant growth is related to the following factors: reduction in protein and phosphorus, with the aging of the plant is increased stem/leaf relationship. The aim of this study was to obtain estimates of the morphological and physiological development of Tifton genotypes, with the use of regression analysis and the breakdown of correlations in direct and indirect effects by path analysis, valued at ten different growing seasons. Methods: The study was conducted in Plant Breeding and Plant Production Laboratory, Federal University of Santa Maria, Campus Frederico Westphalen, coordinates (27º23'26 "S latitude), (53º25'43" The longitude) and 461,3m altitude in the crop year 2013. Were used for the experiments three genotypes Tifton (Cynodon spp.), they Tifton-68, Tifton-85 and Jiggs. The experimental design was a randomized block design with three replications. Each experimental unit consisted of six plants from pasture production unit at the University, were transplanted to the experimental area so that each plant were obtained from three stolons, two below and above ground. Results: By analyzing the regressions (Figure 1), where the Tifton-85 genotype was characterized by red, the Jiggs by green and Tifton-68 by the color blue, it was observed that the plant height (PH) showed linear growth during development culture, being explained by first-degree equations, with the most outstanding genotype the Tifton 85, its highest growth in relation to the others. It is observed also that the regression coefficients for the Tifton-85 genotypes (89.98%), Jiggs (92.37%) and Tifton-68 (92.58%) explained much of the variation between the evaluation seasons. Conclusions: To getting the genotypes with greater protein content, is necessary the selection plants with greater stolon diameter, leaf width, leaf length, lower number of tillers, green mass and dry mass. In a general way, the Tifton 85 genotype has greater highlight cultivation aiming greater development, resulting in a higher green mass, dry mass and chlorophyll content, however, when it aims genotypes that have high protein content, should have some caution, since the negative correlation seen between this and the traits green mass and dry mass.
653 $aCynodon spp
653 $agenotypes behavior
653 $aindirect selection
653 $apath analysis
653 $aRegression
700 1 $aCARVALHO, I. R.
700 1 $aNARDINO, M.
700 1 $aSZARESKI, V. J.
700 1 $aMEIRA, D.
700 1 $aFOLLMANN, D. N.
700 1 $aPELEGRIN, A. J.
700 1 $aFERRARI, M.
700 1 $aDEMARI, G. H.
700 1 $aSOUZA, V. Q.
773 $tAUSTRALIAN JOURNAL OF BASIC AND APPLIED SCIENCES, Australia$gv. 10, n. 8, p. 181-187, 2016.
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