Forage Grasses
Mostrando 13-24 de 111 artigos, teses e dissertações.
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13. Development of methodology to test the electrical conductivity of Marandú grass seeds
RESUMO O teste de condutividade elétrica permite a avaliação do vigor das sementes no prazo máximo de 24 horas, porém a necessidade de contar as sementes para obter a amostra para a análise dificulta a aplicação deste teste em sementes pequenas, como de gramíneas forrageiras. Objetivou-se neste trabalho estabelecer uma metodologia prática para o te
Rev. Ciênc. Agron.. Publicado em: 2019-03
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14. Fungal endophytes of Panicum maximum and Pennisetum purpureum: isolation, identification, and determination of antifungal potential
ABSTRACT This study aimed to isolate and identify endophytic fungi from the forage grass P. maximum and evaluate their ability to inhibit the growth of plant pathogenic fungi. One sample from P. purpureum grass was also included. Surface disinfected stem fragments were used for endophytic fungal isolation. One hundred and twenty-six endophytic fungi were iso
R. Bras. Zootec.. Publicado em: 22/10/2018
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15. Morphological and molecular characterization of Curvularia lunata pathogenic to andropogon grass
ABSTRACT The fungal genus Curvularia is associated with a number of diseases in plants, commonly producing foliar spots in forage grasses. The objective of this study was to characterize the morphological and molecular diversity of the isolates of Curvularia sp. associated with Andropogon seeds, and to assess both their capacity to transmit disease and the p
Bragantia. Publicado em: 16/04/2018
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16. Intraspecific tetraploid hybrids of Paspalum notatum: agronomic evaluation of segregating progeny
ABSTRACT: For many decades, animal production in southern Brazil has been based on native forage grasses. Paspalum notatum Flügge (bahiagrass) is one of the most frequently used native grass in southern Brazil. The native germplasm of P. notatum is tetraploid and displays apomictic reproduction; hence, chromosome doubling of sexual diploid accessions is req
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-01
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17. Evaluation of forage grass resistance to Mahanarva fimbriolata (Stål)
ABSTRACT The aim of this study was to select forage grasses with potential resistance to Mahanarva fimbriolata by assessing effects on insect. No-choice assays were conducted with 12 genotypes and laboratory-reared insects. The following parameters were assessed: mortality and duration of the nymphal stage; adult weight and longevity; pre-oviposition period;
Bragantia. Publicado em: 18/12/2017
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18. Degradação e produção de gases in vitro de glicerina da cadeia produtiva do biodiesel
his study was realized to evaluate the production of gas and volatile fatty acids when glycerin was used to replace four forage species through the use of a semi-automated technique in vitro. The experimental design included 4 treatments and 4 replications. The treatments consisted of increasing levels of glycerin (0, 30, 50 and 70%), which was used to repla
Acta Sci., Anim. Sci.. Publicado em: 2015-09
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19. The chemical composition, fermentation profile, and microbial populations in tropical grass silages
The objective of this study was to evaluate the fermentation profile, chemical composition and microbial population and losses in the silages of signalgrass and Mombasa grass fertilized with the following levels of nitrogen (N): 0, 30, 60 and 90 kg/ha. The grasses were harvested at 70 days of regrowth, chopped and then ensiled in laboratory silos that had 20
R. Bras. Zootec.. Publicado em: 2013-09
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20. Elephant grass clones for silage production
Ensiling warm-season grasses often requires wilting due to their high moisture content, and the presence of low-soluble sugars in these grasses usually demands the use of additives during the ensiling process. This study evaluated the bromatological composition of the fodder and silage from five Pennisetum sp. clones (IPA HV 241, IPA/UFRPE Taiwan A-146 2.114
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-02
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21. Desempenho produtivo e análise de crescimento de capins do gênero Cynodon em resposta à frequência de desfolhação / Productive performance and growth analysis of Cynodon grasses in response to frequency of defoliation
No Brasil, a produção das pastagens é um importante componente da bovinocultura pois o pasto é o principal recurso alimentar utilizado na alimentação do maior rebanho comercial de bovinos do mundo. Assim, é imprescindível o conhecimento dos fatores de manejo que interferem na produção de forragem, tornando mais clara a tomada de decisões dentro do
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2012
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22. Desempenho produtivo, análise de crescimento e características estruturais do dossel de dois capins do gênero Cynodon sob duas estratégias de pastejo intermitente / Agronomic performance, growth analysis, and sward structural characteristics of two Cynodon cultivars under two strategies intermittent grazing
A pecuária representa um dos setores mais importantes da economia brasileira, com grande participação na geração de divisas para o país, tendo nas pastagens a sua base alimentar, o que a torna altamente competitiva globalmente. Novos materiais forrageiros são constantemente lançados no mercado, o que gera a necessidade de estudos que identifiquem pr�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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23. ESTUDO DA RECRIA DE NOVILHAS DE CORTE EM PASTAGENS CULTIVADAS DE VERÃO / STUDY OF BEEF HEIFERS REARING ON WARM-SEASON PASTURES
Heifers rearing is a determinant step of efficiency in beef cattle production systems on pastures. Several experiments have tested alternative uses for tropical grasses to heifers rearing. In order to summarize results and making not visible relationships evident in these individual experiments an analysis was performed in a set of data from six experiments
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/2012
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24. Nitrogen fertilization strategies for xaraes and tifton 85 grasses irrigated in the dry season
An experiment was carried out to assess rates and nitrogen fertilization strategies on the forage yield using irrigation to supply the water deficit during the dry season. The grasses Cynodon spp cv. tifton 85 and Brachiaria brizantha cv. Xaraés were cultivated with nitrogen (N) at levels of 200 and 400 kg/ha according to strategies: 1) half dose applied du
R. Bras. Zootec.. Publicado em: 2012-08