Aspectos agronômicos e bromatológicos de leguminosas forrageiras no Nordeste Brasileiro

Teixeira, Vicente Imbroisi; Júnior, José Carlos Batista Dubeux; Santos, Mércia Virgínia Ferreira dos; Lira, Mário de Andrade; Silva, H.M.S. da

doi:10.4321/s0004-05922010000200010

Cited by 15 publications

(14 citation statements)

References 8 publications

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“…According to Van Soest (1982), the higher the content of NDF, the lower the intake of dry matter, and the higher the content of ADF, the lower its digestibility. Teixeira et al (2010), in a study with A. pintoi cv. Amarillo, found values between the minimal and the maximal values of this study for contents of cellulose (16.1%), hemicellulose (16.0%) and lignin (9.9%) in a harvesting performed 102 days after transplanting.…”

Section: Resultsmentioning

confidence: 99%

Genetic divergence between genotypes of forage peanut in relation to agronomic and chemical traits

et al. 2012

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-The objective of this study was to evaluate the genetic divergence of forage peanut in relation to agronomic and chemical traits in both rainy and dry seasons. This experiment was conducted with genotypes from the Forage Peanut Active Germoplasm Bank located in Embrapa Acre. Eighteen genotypes of forage peanut were used: 12 genotypes of A. pintoi, four genotypes of the A. repens species and two interspecific hybrids of A. pintoi × A. repens. The design was of randomized blocks with five replicates. All traits were submitted to analyses of variance and later, study of genetic divergence was done through multivariate analysis techniques, in which the Tocher's optimization method and the nearest neighbor method were used. Dissimilarity measure used in cluster analysis was the generalized distance of Mahalanobis. No pattern was found in the cluster based on species used, according to the results. There is genetic variability for all traits except neutral detergent fiber, acid detergent fiber, hemicellulose and lignin in the rainy season and for pests in the dry season. The traits which presented most relative contribution in the study of genetic divergence of forage peanut were flowering, dry matter yield and average height in the rainy season and crude protein and average height in the dry season. The established cluster may help the breeder to choose parents and crossings to be selected in forage peanut breeding programs.

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Section: Resultsmentioning

confidence: 99%

Genetic divergence between genotypes of forage peanut in relation to agronomic and chemical traits

et al. 2012

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“…The leaf/stem ratio exerts great influence with regard to animal nutrition. Teixeira et al (2010) report that the leaf/stem ratio existing in a legume may interfere with the forage intake by animals, as they prefer to feed on more tender material and of better nutritional value, in this case, the leaves. Araújo et al (2008) state that the behavior of a forage plant results from the interaction of its genetic potential with the environment.…”

Section: Productive Characteristicsmentioning

confidence: 99%

MORPHOLOGY AND PRODUCTIVITY OF "JUREMINHA" GENOTYPES (Desmanthus spp.) UNDER DIFFERENT CUTTING INTENSITIES

et al. 2016

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-The aim of the study was to evaluate the morphological and productive characteristics of five genotypes of Desmanthus spp. submitted to two cutting intensities (20 and 40 cm), in the semi-arid region of Pernambuco. Of the genotypes studied, three were derived from ecotypes collected in municipalities of Pernambuco (7G, 31D and 50J) and two were from the state of Sergipe, coming from Australia (10AU and 13AU). Four cuttings were made with a frequency of 60 days. The treatments were randomized in blocks, with split plots and three replications. The variables studied were plant height, stem diameter, canopy diameter, the number of leaves per branch, LAI, leaf yield, stem yield, pod yield and forage yield, and leaf stem -1 ratio and pod stem -1 ratio. Genotypes 7G and 31D had higher forage yield and a larger number of leaves per branch. Forage yield was higher in the intensity of 20 cm. The cuttings reduced the total yield, stem yield, pods yield and forage yield, of the different genotypes studied. For leaf stem -1 ratio, the genotype 13AU was higher than genotypes 7G and 50J in the cutting intensity of 40 cm. Genotype 10AU had the highest pod stem -1 ratios in the three cuttings. The differences shown between genotypes of Desmanthus spp., especially 7G and 31D, in the intensity of 20 cm, indicate the possibility of selecting promising materials for cultivation in the semi-arid region of Pernambuco, with desirable morphological and productive characteristics to the forage plants.Keywords: Cutting height. Native legumes. Forage yield. Semi-arid. MORFOLOGIA E PRODUTIVIDADE DE GENÓTIPOS DE JUREMINHA (Desmanthus spp.) SOB DIFERENTES INTENSIDADES DE CORTE

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“…Fato este, que pode ser atribuído à presença, em algumas áreas, de plantas invasoras, ocasionando competitividade e menor desempenho produtivo do ECG. A produtividade média do ECG, em sistema de monocultivo, é de 8 a 14 toneladas/ha/ano de matéria seca e de 3 a 6 t/ha/ano, quando consorciada com gramíneas, assumindo-se que a participação da leguminosa na pastagens é de 30% a 40% da matéria seca de forragem produzida (EMBRAPA, 2007 Teixeira et al (2010), foram observados por Moura et al (2011) trabalhando com estilosantes Campo Grande submetidos a cinco idades de corte (30,35,40, 45 e 50 dias) e tratado com e sem adubação fosfatada.…”

Section: Produção E Qualidade Do Estilosantes CV Campo Grandeunclassified

“…O conhecimento da razão F:C, além das inferências de qualidade da massa de forragem, permitem avaliar alguns parâmetros fisiológicos das plantas, pois, de acordo com Taizoxigenase (Rubisco). Segundo Wedin (2004), citado por Teixeira et al (2010), em uma típica planta C 3 , de 20 a 30% do N encontrado nas folhas fazem parte da Rubisco.…”

Section: Produção E Qualidade Do Estilosantes CV Campo Grandeunclassified

Estimativa de produção e valor nutritivo do feno de estilosantes cv. Campo Grande

et al. 2013

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ResumoObjetivou-se com este estudo avaliar a produtividade do estilosantes Campo Grande (ECG), observando a razão folha: caule, bem como o seu potencial para a confecção de feno, de forma a determinar o teor mais adequado de umidade para o enfardamento, o qual proporcionasse as menores perdas na qualidade do feno. O experimento foi conduzido em um hectare de área plantada, dividido em 12 parcelas. Os tratamentos consistiram em três teores de matéria seca (MS): 600, 700 e 800 g/kg de MN, no momento do enfardamento, com quatro repetições cada, em um delineamento inteiramente casualizado. Os dados foram analisados pelo software SAS. Observou-se produtividade média de 3,36 toneladas de matéria natural/hectare. Foi verificado que os fenos se mantiveram estáveis, durante o período de armazenamento (60 dias), exceto para os fenos com teor de MS igual a 600 g/kg de MN, que apresentaram elevação de temperatura, superior a ambiente, em 10ºC. Nos fenos com as maiores concentrações de MS, obteve-se melhores resultados de composição químico-bromatológica, sendo constatados maiores concentrações (P<0,05) de proteína bruta (PB) e menores de nitrogênio insolúvel em detergente neutro (NIDN) e nitrogênio insolúvel em detergente ácido (NIDA). Porém, os fenos com 700 g de MS/kg de MN apresentaram maiores valores (P<0,05) de nutrientes digestíveis totais e de digestibilidade "in vitro" da matéria seca, 528,52 e 646,34 g/kg de MS, respectivamente. Palavras-chave: Armazenamento, digestibilidade in vitro, perdas, razão folha: caule AbstractThe aim of this study was to evaluate the productivity of Stylosanthes spp. cv Campo Grande (ECG), observing the leaf: stem ratio, as well as its potential for haymaking, so, to determine the most suitable moisture content for baling, which provides the lowest losses in quality hay. The experiment was conducted in one hectare of planted area, divided into 12 plots. The treatments consisted of three levels of dry matter (DM): 600, 700 and 800 g/kg fresh matter (FM), at the time of baling, with four repetitions each, in completely randomized experimental design. The data was analyzed by software SAS. There was average productivity of 3.36 tons of fresh matter/ha. It was found that the hay remained stable during the storage period (60 days), except for baled hay with DM content equal to 600 g/kg FM, which showed an increase in temperature, above ambient, 10°C. In baled hay with higher concentrations 1 Parte da dissertação de mestrado do primeiro autor.

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Aspectos agronômicos e bromatológicos de leguminosas forrageiras no Nordeste Brasileiro

Cited by 15 publications

References 8 publications

Genetic divergence between genotypes of forage peanut in relation to agronomic and chemical traits

Genetic divergence between genotypes of forage peanut in relation to agronomic and chemical traits

MORPHOLOGY AND PRODUCTIVITY OF "JUREMINHA" GENOTYPES (Desmanthus spp.) UNDER DIFFERENT CUTTING INTENSITIES

Estimativa de produção e valor nutritivo do feno de estilosantes cv. Campo Grande

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