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| Sales, Eleuza Clarete Junqueira de; Universidade Estadual de Montes Claros; Saraiva, Carlos Ramon Santiago; Instituto Federal de Educação, Ciência e Tecnologia Baiano; Reis, Sidnei Tavares dos; Universidade Estadual de Montes Claros; Rocha Júnior, Vicente Ribeiro; Universidade Estadual de Montes Claros; Pires, Daniel Ananias de Assis; Universidade Estadual de Montes Claros; Vitor, Cláudio Manoel Teixeira; Universidade Federal de São João Del Rei. |
| The aim of this study was to assess two residual heights and two light interceptions on morphogenetic, structural and productive characteristics of Pennisetum purpureum Schum. cv. Pioneiro. The experiment was a factorial randomized block design with four replications. We evaluated morphogenetic characteristics in three basal tillers tagged in each plot, in different tussocks. Tiller population density was evaluated in marked areas in all experimental units. The interaction between the factors significantly influenced the leaf and pseudostem elongation rate, the leaf appearance rate, phyllochron, number of leaves per tiller, green leaves per tiller, final leaf blade length, leaf area index and biomass yield. There were no changes in the leaf senescence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2/5.04.04.00-8 Pennisetum purpureum; Elongation rate; Appearance rate; Phyllochron. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22220 |
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| Braz, Thiago Gomes dos Santos; Universidade Federal de Viçosa; Fonseca, Dilermando Miranda da; Universidade Federal de Viçosa; Freitas, Fabrício Paiva de; Universidade Federal de Viçosa; Martuscello, Janaina Azevedo; Universidade Federal de São João del-Rei; Santos, Manoel Eduardo Rozalino; Universidade Federal de Uberlândia; Santos, Márcia Vitória; Universidade Federal Rural da Amazônia. |
| This study evaluated the influence of nitrogen levels (N) and plant density (D) on the tillering dynamics of Tanzania guinea grass (Panicum maximum Jacq.). Treatments were arranged in a completely randomized block design with 12 treatments and two replicates in a factorial scheme (4 × 3) with four levels of N (0, 80, 160 or 320 kg ha-1 N) and three plant densities (9, 25, and 49 plant m-²). Higher number of tillers was observed in the treatment with 9 plants m-² and under higher levels of N, especially in the second and third generations. Still, the N influenced quadratically the appearance rate of basal and total tillers, which were also affected by plant density and interaction N × D. However, the appearance rate of aerial tiller was not influenced by... |
| Tipo: Pesquisa de campo |
Palavras-chave: 5.04.04.00-8; 5.04.04.01-6 light interception; Panicum maximum; Tiller; Appearance rate; Mortality rate. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13382 |
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