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| Araújo,Marcelo Renato Alves de; Coulman,Bruce. |
| Meadow bromegrass (Bromus riparius Rehm.) is a recently introduced pasture grass in western Canada. Its leafy production and rapid regrowth have made it a major grass species for pasturing beef animals in this region. As relatively little breeding work has been done on this species, there is little information on its breeding behaviour. The main objective of this study was to estimate total genetic variability, broad-sense heritability, phenotypic and genetic correlations. Forty-four meadow bromegrass clones were evaluated for agronomic characters. Genetic variation for dry matter yield, seed yield, fertility index, harvest index, plant height, plant spread, crude protein, neutral detergent fiber and acid detergent fiber, was significant. Broad-sense... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Perennial grasses; Heritability; Phenotypic correlation; Genotypic correlation. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000200026 |
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| Leal,Otávio dos Anjos; Castilhos,Rosa Maria Vargas; Pauletto,Eloy Antonio; Pinto,Luiz Fernando Spinelli; Fernandes,Flávia Fontana; Penning,Letiane Helwig; Rosa,Carla Machado da. |
| After open coal mining, soils are “constructed”, which usually contain low levels and quality of organic matter (OM). Therefore, the use of plant species for revegetation and reclamation of degraded areas is essential. This study evaluated the distribution of carbon (C) in the chemical fractions as well as the chemical characteristics and humification degree of OM in a soil constructed after coal mining under cultivation of perennial grasses. The experiment was established in 2003 with the following treatments: Hemarthria altissima (T1), Paspalum notatum (T2), Cynodon dactilon (T3), Urochloa brizantha (T4), bare constructed soil (T5), and natural soil (T6). In 2009, soil samples were collected from the 0.00-0.03 m layer and the total organic carbon stock... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Humic fractions; Infrared; Laser-induced fluorescence; Perennial grasses. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300886 |
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| Bilibio, Carolina; Hensel, Oliver; Uteau, Daniel; Peth, Stephan. |
| Evapotranspiration is the sum of evaporation of water from soils and transpiration from plants. It is a crucial part of the water cycle and can be measured using lysimeters. However, lysimeters require high maintenance and operation costs; as such, evapotranspiration models are used for making predictions. Thus, the aim of the present study was to calibrate the Hydrus-1D to predict the water balance components of an evapotranspiration cover (in this case, a thin covering layer) for potash tailings piles. Further simulations were performed using different fine fraction proportions, soil textures and crop parameters. A high association between the calibrated and observed drainage of substrates was found, with a variation of 2.9% (approximately 13.6 mm).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water fluxes; Greening; Mining; Perennial grasses; Municipal solid waste incineration bottom ashes; Coal combustion residues. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6649 |
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