Agronomia (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/4
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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10 resultados
Resultados da Pesquisa
Item Uso de águas de qualidade inferior na produção de cana-de-açúcar no Estado de Pernambuco(2018-07) Cutrim, Weliston de Oliveira; Silva, Ênio Farias de França e; http://lattes.cnpq.br/1144266495720148; http://lattes.cnpq.br/1872062048074302Item Estágio Supervisionado Obrigatório. Melhoramento genético de cana-de-açúcar variedades RB- Ridesa Brasil(2019) Silva, Maria Fernanda dos Santos; Freire, Fernando José; http://lattes.cnpq.br/8371992516325399; http://lattes.cnpq.br/6980519081170919Item Relatório de Estágio Supervisionado Obrigatório(2019) Silva, Joseyllton Carlos da; Melo, Roberto de Albuquerque; http://lattes.cnpq.br/9419474898249921; http://lattes.cnpq.br/9623980146104337Item Relatório de Estágio Supervisionado Obrigatório(2019) Dutra, Edgar Fajardo de Vasconcelos; Mendonça Júnior, Antônio Francisco de; http://lattes.cnpq.br/3551551589013115; http://lattes.cnpq.br/6352062300961919Item Sistema integrado de diagnose e recomendação (DRIS) na cana-de-açúcar(2018) Silva, Suellen Roberta Vasconcelos da; Freire, Fernando José; http://lattes.cnpq.br/8371992516325399; http://lattes.cnpq.br/1653618042970958Diagnosis and Recommendation Integrated System (DRIS) is one of the various methods used for interpreting leaf analysis, developed by Beaufils (1973), in which direct and inversely comparisons are made between binary ratio of nutrients in samples evaluated and ratio of nutrients in a high productivity population. DRIS indices determination allows the diagnosis of plant nutrient status, whether it is deficient, balanced or excessive, independently of its critical concentration. Thus, this study aimed to establish DRIS indices to sugarcane for the following elements: N, P, K, Ca, Mg, S, Fe, Zn, Cu, Mn, B. Samples were collected from a commercial farming located in Santa Rita, PB. It was collected leaf +3, according to Kuijper system. Then samples were treated and determinate their nutrient content. DRIS norms used were developed for Alagoas to sugarcane. DRIS indices calculated provided a prediction of response to additional fertilizer. For most nutrients it was verified balanced ratios. Ca and Fe were the most unbalanced elements, where the first was classified as excessive and the second, deficient. That may happen because of the mutual effect of both elements, inhibiting uptake. For example, Fe has higher concentration with less Ca in solution, which acts in transportation of molecules and in cell membrane integrity. With Ca deficiency, cell membrane has more permeability, increasing Fe content in plant. Therefore, it is important to identify the most accurate criterion for DRIS norms determination, being preferred the use of specific DRIS norms instead of universal ones. Also the method used to calculate DRIS indices can interfere in the results.Item Avaliação do indice de germinação em diferentes genótipos de cana-de-açucar(2018-08) Flôr, Mateus Ferraz; Silva, Gheysa Coelho; http://lattes.cnpq.br/5485750178709039The Simplified Selection System (SSS) has the objective of reducing the time for releasing a new variety. However, it presents limitations as to the composition of base populations for selection of families, which must contain the same number of seedlings. The objective of this work was to compare and evaluate the germination index of caryopses obtained by means of different crossing methods and to determine the quantitative of seeds to be used to compose the base population for selection among families by the SSS method. The experiment was conducted under a completely randomized design. Caryopses of 27 crosses between energy cane breeders were evaluated, being eight biparental, ten polycrossing and nine self-fertilization. Sowing of four 0.5 gram samples of caryopses was done by crossing. The number of caryopses germinated five and thirty days after sowing was evaluated. The general averages were grouped by the Scott-Knott method and the comparison between the averages of the different crossing methodologies were performed by the Tukey’s test at 5% of probability. It was verified that the C27 crossing presented the highest germination average of the caryopse in the first evaluation. At the second evaluation, the crosses C8 (76.74%), C27 (61.02%), C3 (53.99%) and C13 (49.65%), although they were statistically different, were shown with high averages. It was observed that, in the first evaluation, the caryopses obtained through self-fertilization presented the highest germination average (12.82%), followed by the polycrosses (10.88%) and the biparental crosses (9.99%), while in the second evaluation, the highest percentage of germination was verified in the biparental crosses (31.10%), followed by the self-fertilization (21.35%) and polycrosses (20.43%). It was verified that the majority of the evaluated crosses presented low germination, being necessary of 2.71 to 800 grams of seeds to homogenize the number of individuals by family. Therefore, it was concluded that only crosses with high germination are recommended to compose the families that will be evaluated through the SSS. Caryopses obtained through self-fertilization germinate rapidly in comparison to the other methods, once that biparental crosses between selected energy cane parents tend to present higher fertility of caryopses. Families C1, C3, C8, C13, C26 and C27 can be used to compose the base populations in the simplified selection system.Item Efetividade do bioprotetor na produção da cana-de-açucar(2019-01) Martins, Marllon dos Santos; Ribeiro Filho, Mateus Rosas; http://lattes.cnpq.br/7832462604842279; http://lattes.cnpq.br/5889666745906522Item Plantio e tratos culturais na cana-de-açúcar na região da Zona da Mata de Pernambuco(2018-07) Silva, Luís Felipe Inácio da; Souza Júnior, Valdomiro Severino de; http://lattes.cnpq.br/3461006118388502; http://lattes.cnpq.br/5690214135281711Item Relatório de Estágio Supervisionado Obrigatório(2018) Silva, Jéssica Dionisio da; Freire, Fernando José; http://lattes.cnpq.br/8371992516325399Item Irrigação, corte, carregamento e transporte da cana-de-açúcar produzida na Usina São José - Igarassu/PE(2019) Souza, Guilherme Duarte de Oliveira; Silva, Manassés Mesquita da; http://lattes.cnpq.br/2249840331584869