Características morfogênicas e estruturais de duas espécies de braquiária adubadas com diferentes doses de nitrogênio
Cristina Cavalcante Félix da Silva,Paulo Bonomo,Aureliano José Vieira Pires,Camila Maida de Albuquerque Maranhão,Neusete Maria da Silva Patês,Luciana Carvalho Santos +5 more
TLDR
The objective of this work was to evaluate the morphogenetic and structural characteristics of Brachiaria brizantha and decumbens submitted to different nitrogen doses, and found that the daily foliar structure emergence, total number of leaves and number of tillers per B. decumben plant was higher for B. brizintha, however, for phyllochron, thedaily foliar prolongation and life duration of the B. Brizantha leaf were higher.Abstract:
The objective of this work was to evaluate the morphogenetic and structural characteristics of Brachiaria brizantha and decumbens submitted to different nitrogen doses (N). The experiment was carried in a greenhouse. The treatments consisted of four N doses (0, 75, 150 and 225 mg/dm3 of N) and two grasses (Brachiaria brizantha and decumbens). Nitrogen fertilization was subdivided into three applications. A completely randomized block experimental design with five repetitions was used. For the morphogenetic and structural characteristics, the daily foliar structure emergence, total number of leaves and number of tillers per B. decumbens plant was higher for B. brizantha. However, for phyllochron, the daily foliar prolongation and life duration of the B. brizantha leaf were higher. B. decumbens and brizantha responded increasingly up to 190 mg/dm3 of nitrogen in relation to the majority the available characteristics. The process senescence is accelerated with increase of the nitrogen doses, reducing the life duration of leaves.read more
Citations
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Características morfogênicas e estruturais do capim-marandu manejado sob pastejo intermitente com diferentes ofertas de forragem
Daniel Rume Casagrande,Ana Cláudia Ruggieri,E. R. Janusckiewicz,José Alberto Gomide,Ricardo Andrade Reis,Andre L.S. Valente +5 more
TL;DR: Environmental variables affect morphogenetic and structural characteristics of the canopy of Brachiaria brizantha cv.
Journal ArticleDOI
Fluxo de biomassa em capim-massai durante o estabelecimento e rebrotação com e sem adubação nitrogenada.
Marcos Neves Lopes,Magno José Duarte Cândido,Roberto Cláudio Fernandes Franco Pompeu,Rodrigo Gregório da Silva,José Wellington Batista Lopes,Francisco Ronaldo Belem Fernandes,Claudivan Feitosa de Lacerda,Francisco Marcus Lima Bezerra +7 more
TL;DR: A adubacao nitrogenada proporciona respostas positivas nas variaveis do fluxo de biomassa do capim-massai, durante o estabelecimento e a rebrotacao, em casa de vegetacao.
Journal ArticleDOI
Morphogenesis of Tanzania guinea grass under nitrogen doses and plant densities
Thiago Gomes dos Santos Braz,Dilermando Miranda da Fonseca,Fabrício Paiva de Freitas,Janaina Azevedo Martuscello,Manoel Eduardo Rozalino Santos,Márcia Vitória Santos,Vinícius Valim Pereira +6 more
TL;DR: Nitrogen increases production of leaves and tillers in Tanzania guinea grass defoliated at 95% of light interception, but high density of plants reduces the number of tiller per bunch.
Journal ArticleDOI
Growth and bromatological characteristics of Brachiaria decumbens and Brachiaria ruziziensis under shading and nitrogen
Bruna Moscat de Faria,Mirton José Frota Morenz,Domingos Sávio Campos Paciullo,Fernando César Ferraz Lopes,Carlos Augusto de Miranda Gomide +4 more
TL;DR: The N fertilization is an important strategy to improve DMP, tillers density and CP content, for both grasses, however, intense shading should be avoided, as it reduces tillering and root weight, which may threat pasture persistence.
References
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Características morfogênicas e estruturais do capim-xaraés submetido à adubação nitrogenada e desfolhação
Janaina Azevedo Martuscello,Dilermando Miranda da Fonseca,Domicio do Nascimento Júnior,Patrícia Menezes Santos,José Ivo Ribeiro Júnior,Daniel de Noronha Figueiredo Vieira da Cunha,Luciano de Melo Moreira +6 more
TL;DR: Nitrogen fertilization doses had marked effects on the morphogenetic and structural characteristics of Massaigrass, as well as on its shoot dry weight, and leaf elongation rate showed linear increase of 64% to N doses.
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Respostas morfogênicas e estruturais de Panicum maximum cv. Mombaça sob diferentes níveis de adubação nitrogenada e alturas de corte
Américo Fróes Garcez Neto,Domicio do Nascimento Júnior,Adair José Regazzi,Dilermando Miranda da Fonseca,Paulo Roberto Mosquim,Kátia Fernanda Gobbi +5 more
TL;DR: The responses observed on morphogenetic characteristics comprise an efficient attribute to manipulate canopy structure, allowing improved allocation of productive resources to growth and developmental processes, and are determinant for the characterization of the main vegetative changes on plants.
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Leaf Emergence, Tiller Growth, and Apical Development of Nitrogen-Dificient Spring Wheat
TL;DR: Examination of effects of N deficiency on leaf and tiller emergence, tiller initiation and apical development in ‘Aroona’ and ‘Gamenya’ spring wheat found the rate of leaf emergence was decreased, and primordia initiation was decreased in N₅₀ and N⁁₆₄₴ plants, resulting in fewer spikeletPrimordia.
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Características morfogênicas e estruturais do capim-braquiária em pastagem adubada com nitrogênio avaliadas nas quatro estações do ano
Jailson Lara Fagundes,Dilermando Miranda da Fonseca,Claudio Mistura,Rodrigo Vieira de Morais,Cláudio Manoel Teixeira Vitor,José Alberto Gomide,Domicio do Nascimento Júnior,Daniel Rume Casagrande,Lucas Teixeira da Costa +8 more
TL;DR: Leaf and stem elongation rates, number of alive leaf, final leaf length, leaf area index, leaf blade and stem percentages in the Brachiaria decumbens varied among seasons, lower values occurring in the winter.
Journal ArticleDOI
Acúmulo de forragem em pastos de Brachiaria decumbens adubados com nitrogênio
Jailson Lara Fagundes,Dilermando Miranda da Fonseca,José Alberto Gomide,Domicio do Nascimento Júnior,Cláudio Manoel Teixeira Vitor,Rodrigo Vieira de Morais,Claudio Mistura,Gilberto da Cunha Reis,Janaina Azevedo Martuscello +8 more
TL;DR: Brachiaria grass showed an increase in the dry matter yield proportionally to nitrogen doses, with higher rates for daily accumulation of leaves, stems and forage yield in summer-spring seasons, while lower rates were shown in the winter.