Birdsfoot Trefoil
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Rendimento de grãos e características agronômicas de soja em função de pastagens perenes em sistema de plantio direto
O objetivo do presente estudo foi avaliar o desempenho de soja em sistemas de produção com integração lavoura-pecuária em plantio direto. Constituíram os tratamentos cinco sistemas de produção: sistema I (trigo/soja, ervilhaca/milho e aveia branca/soja); sistema II (trigo/soja, pastagem de aveia preta + ervilhaca/milho e aveia branca/soja); sistema I
Bragantia. Publicado em: 08/08/2014
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2. Performance of Lotus corniculatus L. genotypes submitted to cutting interval: subsidies to a breeding program
The objective of this work was to evaluate the response of five birdsfoot trefoil populations (Lotus corniculatus L.), selected under severe and intense grazing (P38, P37, P9 and P3) or cutting (population Corte), one rhizomatous population from Morocco and two cultivars, São Gabriel (Brazil) and ARS 2620 (USA), to different cutting intervals (20 and 40 day
Revista Brasileira de Zootecnia. Publicado em: 2011-08
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3. Effect of intercropping wheat with forage legumes on wheat production and ground cover.
The use of winter legumes in southern Brazil is hindered by the slow growth of these species during establishment exposing soil surface to erosion. Introduction of these species along with spring wheat (Triticum aestivum L.) was studied as a means of increasing ground cover during their initial establishment period, without reducing wheat grain yield. Two ex
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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4. ANIMAL PRODUCTION AND VEGETATION DYNAMICS IN NATURAL GRASSLANDS UNDER DIFFERENT MANAGEMENT SYSTEMS / PRODUÇÃO ANIMAL E DINÂMICA VEGETACIONAL EM PASTAGEM NATURAL SOB DIFERENTES SISTEMAS DE MANEJO
The trial was accomplished in the Fundação Estadual de Pesquisa Agropecuária (FEPAGRO) in São Gabriel, RS, to evaluate the performance of sheep and lambs in natural grassland, managed with different grazing systems and, pasture improvement with fertilization and introduction of cool season species, and to verify the effects of those different managements
Publicado em: 2006
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5. EFFECTS OF PHYSICAL AND BIOCHEMICAL CHARACTERISTICS OF CONTRASTING LEGUME SWARDS ON SELECTIVE BEHAVIOUR OF GRAZING CATTLE
In order to assess the effects of sward physical characteristics and secondary compound concentration on cattle ingestive behaviour and diet selection, two sets of experiments were carried out using two legumes [birdsfoot trefoil (Lotus corniculatus L.); red clover (Trifolium pratense L.)] with approximately neutral partial preference. The first set investig
Publicado em: 1998
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6. Nitrogen Fixation and Vegetative Regrowth of Alfalfa and Birdsfoot Trefoil after Successive Harvests or Floral Debudding 1
Nitrogenase-dependent acetylene reduction, leaf, herbage, and root growth, and total nonstructural carbohydrate accumulation of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.) were compared to learn how nitrogen fixation capacity and vegetative growth respond to partial (75-85%) or total shoot and leaf removal, and floral debudding
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7. Nitrate Effects on Nodule Oxygen Permeability and Leghemoglobin (Nodule Oximetry and Computer Modeling).
Two current hypotheses to explain nitrate inhibition of nodule function both involve decreased O2 supply for respiration in support of N2 fixation. This decrease could result from either (a) decreased O2 permeability (PO) of the nodule cortex, or (b) conversion of leghemoglobin (Lb) to an inactive, nitrosyl form. These hypotheses were tested using alfalfa (M
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8. Effect of Cold Acclimation on Bulk Tissue Electrical Impedance: II. Measurements with Alfalfa and Birdsfoot Trefoil at Nonfreezing Temperatures
Stem and electrode electric impedance at 14 frequencies were monitored during cold acclimation of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.). Cold acclimation significantly increased high frequency (e.g. 1.11 megahertz) resistance and reactance but not low frequency (49 hertz) resistance and reactance of both species. High fre
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9. Effect of Cold Acclimation on Bulk Tissue Electrical Impedance: I. Measurements with Birdsfoot Trefoil at Subfreezing Temperatures
The resistive and reactive components of electrical impedance were measured for birdsfoot trefoil (Lotus corniculatus L.) stems at freezing temperatures to −8°C. As temperature decreased the specific resistance at frequencies between 49 hertz and 1.11 megahertz of stems from cold acclimated plants increased more rapidly than from nonacclimated plants. Thi
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10. Genetic Manipulation of Condensed Tannins in Higher Plants1 : II. Analysis of Birdsfoot Trefoil Plants Harboring Antisense Dihydroflavonol Reductase Constructs
We have produced and analyzed transgenic birdsfoot trefoil (Lotus corniculatus L.) plants harboring antisense dihydroflavonol reductase (AS-DFR) sequences. In initial experiments the effect of introducing three different antisense Antirrhinum majus L. DFR constructs into a single recipient genotype (S50) was assessed. There were no obvious effects on p
American Society of Plant Physiologists.
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11. Effects of Condensed Tannins on Endoglucanase Activity and Filter Paper Digestion by Fibrobacter succinogenes S85 †
The effect of condensed tannins from birdsfoot trefoil (Lotus corniculatus L.) on the cellulolytic rumen bacterium Fibrobacter succinogenes S85 was examined. Condensed tannins inhibited endoglucanase activity in the extracellular culture fluid, at concentrations as low as 25 μg ml-1. In contrast, cell-associated endoglucanase activity increased in concentra
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12. Expression of β-Amylase from Alfalfa Taproots1
Alfalfa (Medicago sativa L.) roots contain large quantities of β-amylase, but little is known about its role in vivo. We studied this by isolating a β-amylase cDNA and by examining signals that affect its expression. The β-amylase cDNA encoded a 55.95-kD polypeptide with a deduced amino acid sequence showing high similarity to other plant β-amylase
American Society of Plant Physiologists.