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Showing 1 to 20 of 69 for “"lolium perenne"”.
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Aspects of the root ecology of Neotyphodium endophytes in Lolium perenne
Three different strains of the biotrophic endosymbiont, Neotyphodium, in perennial ryegrass were compared with endophyte-free ryegrass (Nil) for their effects on root herbivory, soil biota, root growth, root morphology and alkaloid and nutrient content in pot trials. Ryegrass infected with the …
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Investigations of self-incompatibility (SI) in perennial ryegrass (Lolium perenne L.)
Perennial ryegrass (Lolium perenne L.) is one of the most economically and environmentally important grass species for the temperate zone. It maintains effective self-incompatibility (SI), which promotes outbreeding as well as limits the efficient production of inbred lines and hybrids. SI in L. …
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Identification of genes related to self-incompatibility in ryegrass (Lolium perenne L.)
… in many flowering plant species. SI in Lolium perenne is controlled by two multi-allelic loci, S and Z. The working of this SImechanism has important consequences for L. perenne breeding as it prevents the efficient production of inbred lines and hybrids. The aim of this study was to …
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Evaluation of drought tolerance in genetically modified Lolium perenne L. and Arabidopsis thaliana
… role in drought tolerance of perennial ryegrass (Lolium perenne L.). UBLs are related in tertiary structure to ubiquitin (UB) and they both serve as regulators of many cellular processes. In previous work over-expression of one UBL, the Lolium perenne L. Ubl5 (LpUbl5) homologue in perennial …
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A metabolomics-based approach to study abiotic stress in <em>Lolium perenne</em>
… In temperate grasslands, perennial ryegrass (L. perenne) is the major forage grass and this species is particularly suitable as a forage grass due to its high yield and digestibility, when compared with other species. However, perennial ryegrass is not well adapted to abiotic stress conditions …
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Indole diterpenoid secondary metabolites produced by the Epichloë festucae var. lolii – Lolium perenne symbiosis.
… intermediates of lolitrems in a crude extract of Lolium perenne (L. perenne) seed infected with Epichloë festucae var. lolii (E. festucae var. lolii) and their biological activity against porina larvae were investigated. Liquid-liquid partitioning of the crude extract, together with a series of …
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Modelado poblacional del raigrás perenne (Lolium perenne L.) en cultivos de trigo de la región semiárida
… de la biología y la ecología del raigrás perenne (Lolium perenne) como maleza de cultivos de trigo en la región semiárida del sudoeste de la provincia de Buenos Aires, y se desarrollaron modelos matemáticos con el objetivo de diseñar herramientas que permitan predecir el comportamiento a …
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Resistance to African black beetle (Heteronychus arator) in perennial ryegrass (Lolium perenne L.) infected with AR1 endophyte
… nov. et comb. nov. endophyte-perennial ryegrass (Lolium perenne L.) associations which do not cause toxicity to livestock and with strong resistance to African black beetle (H. arator), would be of significant value to farmers in regions where this pest is a problem. Epichloë festucae var. lolii …
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Distribution and Control of Herbicide-Resistant Italian Ryegrass (Lolium perenne L. ssp. multiflorum Lam. Husnot) in Arkansas
<p>Italian ryegrass populations have evolved resistance to herbicides that producers rely on for weed control both in wheat and burn-down. The objectives of this research were to: test populations of Italian ryegrass from across Arkansas for resistance to glyphosate, diclofop, pinoxaden, and …
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Intercropping Studies With Soybean (Glycine Max (L.); Merr.) and Maize (Zea Mays L.) or Ryegrass (Lolium Perenne L.)
… L.) under field conditions and with ryegrass (Lolium perenne L.) under greenhouse conditions. A series of six experiments were performed. Two in the field and four in the greenhouse. The intercrop pattern in the field was two rows of soybean per row of maize. Maize plant populations were 30,000 …
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Competitive interactions in a dairy pasture containing paspalum (Paspalum dilatatum Poir,) following the introduction of ryegrass (Lolium perenne L.)
… the contribution of introduced grasses (Lolium perenne and Bromus catharticus) to seasonal production of a high yielding dairy sward containing paspalum (Paspalum dilatatum). The persistence of the introduced species was also determined. Autumn overdrilling improved (<500 kg DM/ha) …
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The influence of environment, season, plant growth stage and herbicide formulation the activity of glyphosate applied to Lolium perenne
… efficacy of glyphosate (as Roundup) applied to Lolium perenne L. cv. Grasslands Ruanui, and the influence of environment, season, plant growth stage and herbicide formulation has been studied. A preliminary investigation was conducted in controlled environment conditions to establish the …
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Effect of Lolium perenne L. ploidy, Trifolium repens L. inclusion and cow breed on the productivity and profitability of pasture-based, spring-milk systems
… tetraploid or diploid perennial ryegrass (Lolium perenne L.; PRG) sown with and without white clover (Trifolium repens L.). Four grazing treatments were compared for this study; tetraploid PRGonly swards, diploid PRG-only swards, tetraploid PRG with white clover swards and diploid PRG with …
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Effect of Alternative Management Practices and the Fungal Endophyte (Epichloë festucae var. lolii) on Improving the Longevity of Perennial Ryegrass (Lolium perenne L.) in Minnesota
One of the primary challenges facing the perennial ryegrass seed producers in Minnesota is a lack of perenniality in the species when grown for seed. The first research project explored alternative management options, including fall residue management strategies and plant growth regulator …
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Temporal patterns of metal ion and nanoparticle uptake by Lolium perenne in hydroponic systems in the presence of amendments ethylene diamine disuccinic acid (EDDS) and gibberellic acid
… the processes influencing this behaviour in Lolium perenne. A two-stage investigation process was designed to build on the understanding of the plant damage and growth that would allow the translocation of metals as ions and nanoparticles into ryegrass shoots. 1) Investigation of the combined …
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An Investigation into Transformation and RNA Editing in the Lolium Plastome
… predominantly consists of perennial ryegrass (Lolium perenne L.). Owing to the predicted climate change, grasslands in the east of Ireland will be severely affected over the next hundred years. Due to this prediction, strategies to circumvent this problem need to be addressed. The present study …
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Effect of ammonium and nitrate on nitrogen fixation and mineral nutrition of ryegrass and uninoculated and inoculated clover grown separately and in association : A dissertation submitted in partial fulfilment of the requirements for the Degree of Bachelor of Agricultural Science (Honours) in the University of Canterbury
… on the growth and ionic composition of ryegrass (Lolium perenne L.), and uninoculated and inoculated white clover ( Trifolium repens L.) plants, grown in nutrient solutions containing either NH₄- or No₃-N. The effect of increasing nitrate concentrations on the growth and ionic composition of …
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Allelopathic effect of imperata cylindrica (L.) beauv. extracts on the germination of weeds
… different parameters on Cucumis sativus and Lolium perenne Similarly, allelopathic effect of Imperata cylindrica root and shoot 70 % ethanol extract fractions (obtained by different polarity solvents), that is, A, B, C, and D, were also tested at 0.125, 0.25, and 0.5 mg/ml concentrations on …
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The effects of soil moisture, mulch, slope-facing, and surface temperature on grass seedlings
… temperature injury to perennial ryegrass (Lolium perenne) seedlings grown with wood-cellulose mulch at two moisture tensions showed seedling injury to increase with surface temperature while air and soil temperatures had no significant effect. Low moisture tension produced lower surface …
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