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| Paiva, Emanoela Pereira de; Torres, Salvador Barros; Alves, Tatianne Raianne Costa; Sá, Francisco Vanies da Silva; Leite, Moadir de Sousa; Dombroski, Jeferson Luiz Dallabona. |
| Most plant species are susceptible to the effects of salinity, such as increases in osmotic potentials and deleterious ionic effects, which in turn affect water absorption in plants and, consequently, compromise germination and seedling growth. Hence, this study aimed to evaluate the effects of salinity on the germination, initial growth, and physiological and biochemical components of S. hispanica seedlings at different temperatures. The experimental design was completely randomized, with treatments distributed in a 5 x 4 factorial scheme with five saline concentrations (0.0 (control), 4.5, 9.0, 13.5, and 18.0 dS m-1) four temperature regimes (20, 25, 30, and 20-30°C), and four replicates of 50 seeds per treatment. The experiment evaluated the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Produção Vegetal; Fitotecnia; Produção e Tecnologia de Sementes Lamiaceae; Chia; Salt stress; Thermal stress. Produção e Beneficiamento de Sementes. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39396 |
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| Paiva, Emanoela Pereira de; Torres, Salvador Barros; Alves, Tatianne Raianne Costa; Sá, Francisco Vanies da Silva; Leite, Moadir de Sousa; Dombroski, Jeferson Luiz Dallabona. |
| Most plant species are susceptible to the effects of salinity, such as increases in osmotic potentials and deleterious ionic effects, which in turn affect water absorption in plants and, consequently, compromise germination and seedling growth. Hence, this study aimed to evaluate the effects of salinity on the germination, initial growth, and physiological and biochemical components of S. hispanica seedlings at different temperatures. The experimental design was completely randomized, with treatments distributed in a 5 x 4 factorial scheme with five saline concentrations (0.0 (control), 4.5, 9.0, 13.5, and 18.0 dS m-1) four temperature regimes (20, 25, 30, and 20-30°C), and four replicates of 50 seeds per treatment. The experiment evaluated the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lamiaceae; Chia; Salt stress; Thermal stress.; Produção e Beneficiamento de Sementes. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39396 |
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| Leite, Tiago de Sousa; Freitas, Rômulo Magno Oliveira de; Dombroski, Jeferson Luiz Dallabona; Leite, Moadir de Sousa; Rodrigues, Mara Raquel de Oliveira. |
| O objetivo desse estudo foi avaliar o crescimento inicial e partição da biomassa de mudas de mulungu (Erythrina velutina Willd.) submetidas a diferentes doses de fósforo na presença e ausência de fungos micorrízicos arbusculares (FMA’s). Foi utilizado o delineamento experimental em blocos ao acaso, num esquema fatorial 5 x 2, com quatro blocos e três plantas por unidade experimental. Os tratamentos foram compostos pela combinação de cinco doses de fósforo (0, 50, 100, 150 e 200 mg de P.kg de solo-1), utilizando-se como fonte o adubo superfosfato simples, e presença ou ausência de FMA’s. Aos 98 dias após a semeadura (DAS) foram avaliadas as variáveis: altura da parte aérea, diâmetro do colo, número de folhas, índice de conteúdo de clorofila foliar, matéria... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Florestais; Nutrição Mineral Matéria seca; Área foliar; Índice de qualidade de Dickson Dry matter; Leaf area; Dickson quality index. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/642 |
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| Oliveira, Mychelle Karla Teixeira de; Dombroski, Jeferson Luiz Dallabona; Medeiros, Rita de Cássia Araújo de; Farias, Raul Martins de; Tomczak, Valmor Elias. |
| The aim of this work was to evaluate organic-mineral substrates in the production of Erythrina velutina seedlings. The experiment was conducted in a split-plot completely randomized design, subdivided in time, with 10 replications. Five substrates (S) were used: S1 = soil; S2 = soil + tanned bovine manure (20%); S3 = soil + simple superphosphate (300 g m-3); S4 = soil + simple superphosphate + micronutrients (300 g m-3, 50 g m-3); S5 = soil + simple superphosphate + micronutrients (300 g m-3, 50 g m-3) + tanned bovine manure. The substrate was composed of soil, and bovine manure tanned in the ratio 4:1, according to each treatment. Five seedlings were collected at intervals of 14, 28, 42, 56 and 70 days after sowing. The analyzed variables were: shoot... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Florestais; Engenharia Florestal; Botânica Biomassa; Ecofisiologia; Revegetação Biomass; Ecophysiology; Revegetation. |
| Ano: 2017 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1029 |
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