Bibliografías temáticas / Eragrostis curvula

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Literatura académica sobre el tema "Eragrostis curvula"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 24 de julio de 2025

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Artículos de revistas sobre el tema "Eragrostis curvula"

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Carballo, Jose, Diego Zappacosta, Juan Pablo Selva, Mario Caccamo, and Viviana Echenique. "Eragrostis curvula, a Model Species for Diplosporous Apomixis." Plants 10, no. 9 (2021): 1818. http://dx.doi.org/10.3390/plants10091818.

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Eragrostis curvula (Schrad.) Ness is a grass with a particular apomictic embryo sac development called Eragrostis type. Apomixis is a type of asexual reproduction that produces seeds without fertilization in which the resulting progeny is genetically identical to the mother plant and with the potential to fix the hybrid vigour from more than one generation, among other advantages. The absence of meiosis and the occurrence of only two rounds of mitosis instead of three during embryo sac development make this model unique and suitable to be transferred to economically important crops. Throughout
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Rabau, T., B. Longly, and B. P. Louant. "Ontogenèse des sacs embryonnaires non réduits chez Eragrostis curvula." Canadian Journal of Botany 64, no. 8 (1986): 1778–85. http://dx.doi.org/10.1139/b86-237.

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The apomictic reproductive mode by diplospory is cytologically analysed in Eragrostis curvula (Schrad.) Nees, a tetraploid forage grass. The genesis of unreduced embryo sacs is followed; two kinds of sacs are then distinguished: (i) a monopolar one with a typical oogonial complex and a polar nucleus at the micropylar end; (ii) a bipolar one with an egg cell and two polar nuclei at the micropylar end, and some antipodial cells at the chalazal end. Monopolar sacs are 3 times more frequent than bipolar ones. Traces of sexuality are noted in E. curvula but with a low frequency. A chronology of fem
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Johnston, W. H., and V. F. Shoemark. "Establishment and persistence of palatable taxa of Eragrostis curvula complex in southern New South Wales." Australian Journal of Experimental Agriculture 37, no. 1 (1997): 55. http://dx.doi.org/10.1071/ea96025.

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Summary. Spring sowings in cultivated plots at Wagga Wagga in 1980 and 1982, and Cowra and Colinroobie in 1980 and 1981 examined the establishment and persistence of Eragrostis curvula (Schrad.) Nees complex cv. Consol and accession 4660, Cenchrus ciliaris L. cv. American and Phalaris aquatica L. cv. Sirocco. Cenchrus ciliaris was short-lived and not frost-hardy. Competition and dry conditions reduced establishment of all species, nevertheless E. curvula established reliably. In 1 experiment where conditions were not immediately favourable for germination, E. curvula demonstrated a capacity to
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Alagbo, Oyebanji O., and Bhagirath Singh Chauhan. "Germination Ecology of African Lovegrass (Eragrostis curvula) and Herbicide Options for Its Control." Agriculture 13, no. 5 (2023): 920. http://dx.doi.org/10.3390/agriculture13050920.

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African lovegrass (Eragrostis curvula) is one of the invasive perennial grasses that continues to disturb natural ecosystems globally. Experiments were conducted in southeast Queensland, Australia, to evaluate the effects of temperature, salt stress, water stress, burial depth, and sorghum crop residue load on the emergence and efficacy of postemergence herbicides on two populations (Clifton and Crows Nest) of E. curvula. The optimal germination temperature regimes for E. curvula were 30/20 and 35/25 °C, but seeds did not germinate at temperatures commonly occurring in the Queensland winter (1
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Johnston, WH. "Palatability to sheep of the Eragrostis curvula complex. 2. Selection of palatable taxa." Australian Journal of Experimental Agriculture 28, no. 1 (1988): 47. http://dx.doi.org/10.1071/ea9880047.

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Relative palatability of 12 previously selected taxa of Eragrostis curvula complex was assessed using a visual rating scale of 0 (not grazed) to 10 (completely grazed). Visual ratings were converted to ranks and the most and least palatable lines were compared over 19 grazing assessments in trials at Wagga Wagga, Temora and Orange, New South Wales. Three highly palatable and 2 acceptably palatable accessions were identified. The importance of palatability in the E. curvula complex is discussed.
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Motsomane, Nqobile, Rob Slotow, and Anathi Magadlela. "Soil nutrient concentrations influence micronutrient concentrations in Eragrostis curvula seeds." PLOS One 20, no. 4 (2025): e0322214. https://doi.org/10.1371/journal.pone.0322214.

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Food insecurity often results in malnutrition, manifesting as micronutrient deficiencies that disproportionately affect children under five, impairing their cognitive and physical development. While staple crops supply necessary calories and basic nutrients required for life sustenance, they frequently lack essential micronutrients needed for overall health, necessitating alternative food sources to address food insecurity and malnutrition. This study investigated the potential of Eragrostis curvula seeds as a micronutrient-rich addition to existing food systems and used analyses of covariance
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Johnston, W. H., T. B. Koen, and V. F. Shoemark. "Water use, competition and a temperate-zone C4 grass (Eragrostis curvula (Schrad.) Nees. complex) cv. Consol." Australian Journal of Agricultural Research 53, no. 6 (2002): 715. http://dx.doi.org/10.1071/ar98115.

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The effects of a perennial C4 grass (Eragrostis curvula [Schrad.] Nees. complex cv. Consol) and winter-growing annual pasture on the soil water deficit (SWD) was assessed at 2 sites near Wagga Wagga, NSW. At Site A, newly sown E. curvula-Trifolium subterraneum L. pasture was compared with an annual pasture containing Lolium rigidum Gaud. and T. subterraneum. A mature E. curvula pasture sown 10 years previously was compared with an adjacent volunteer annual pasture at Site B. The annual pasture at Site A had little effect on the SWD at 120 cm depth, but it developed an appreciable SWD at 60 cm
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DI RENZO, M. A., M. A. IBAÑEZ, N. C. BONAMICO, and M. M. POVERENE. "Estimation of repeatability and phenotypic correlations in Eragrostis curvula." Journal of Agricultural Science 134, no. 2 (2000): 207–12. http://dx.doi.org/10.1017/s0021859699007522.

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Eragrostis curvula (Schrad.) Nees s. lat., a highly polymorphic polyploid complex, can be considered as one of the most important warm season perennial grasses for the semi-arid regions of central Argentina. In apomictically propagated and perennial plants such as weeping lovegrass, where successive measurements can be done across time, repeatability estimates provide an indication of the degree of influence of permanent effects on the phenotypic variation and allow prediction of future performance from past records. Analysis of variance of the experiment showed highly significant variation (P
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Johnston, W. H., P. S. Cornish, T. B. Koen, and V. F. Shoemark. "Eragrostis curvula (Schrad.) Nees. complex pastures in southern New South Wales, Australia: a comparison of Eragrostis curvula cv. Consol and Medicago sativa L. cv. Nova under intensive rotational management." Australian Journal of Experimental Agriculture 45, no. 10 (2005): 1255. http://dx.doi.org/10.1071/ea04080.

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The productivity, carrying capacity and liveweight performance of wether sheep grazing pastures of Eragrostis curvula cv. Consol and Medicago sativa cv. Nova, which were also sown with annual grasses and Trifolium subterraneum, were compared under an intensive 4-paddock rotational grazing regime in a ‘put-and-take’ grazing experiment at Wagga Wagga, New South Wales from November 1993 to August 1996. The productivity of the pastures was broadly similar, with production peaks of >1000 kg/ha in winter and >3000 kg/ha in spring and summer in paddocks that had been spelled for 6 weeks. Althou
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Campbell, MH, JJ Dellow, MJ Keys, and AR Gilmour. "Use of herbicides for selective removal of Eragrostis curvula (Schrad.) Nees from a Phalaris aquatica pasture." Australian Journal of Experimental Agriculture 25, no. 3 (1985): 665. http://dx.doi.org/10.1071/ea9850665.

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In the main experiment, the effectiveness of tetrapion, glyphosate and 2,2-DPA in selectively removing Eragrostis curvula from a Phalaris aquatica pasture was determined by applying each at three rates in July 1980, September 1980, December 1980 and March 1981 near Braidwood, New South Wales. Auxiliary experiments were conducted from April 1981 to April 1983 to determine the reliability of herbicide effect on E. curvula. Tetrapion (2.25 and 3.375 kg/ha a.i.) was the most effective herbicide in killing E. curvula and promoting P. aquatica and Trifolium subterraneum. It was more selective when a
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Tesis sobre el tema "Eragrostis curvula"

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Ncanana, Sandile Welcome. "Biolistic-mediated transformation of Eragrostis Curvula with the HSP 12 gene." Thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/6771.

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Bibliography: leaves 91-107.<br>Eragrostis curvula is a desiccation sensitive monocotyledonous plant and an economically important forage grass in southern Africa. This species has a potential to be improved for drought and salt resistance among other important agronomic traits. In this study, E. curvula was used as a model system to explore the feasibility of producing pasture grasses with increased tolerance to water deficit. To date, no reports have been published on transformation of this species. This study reports the transformation of E. curvula with Saccharomyces cerevisiae Hsp 12 gene
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Johnston, William Henry, University of Western Sydney, of Science Technology and Environment College, and School of Environment and Agriculture. "The role of Eragrostis curvula (Schrad.) Nees. complex in temperate pastures in southeastern Australia." THESIS_CSTE_EAG_Johnston_W.xml, 2003. http://handle.uws.edu.au:8081/1959.7/29.

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This thesis examines the hypothesis that, in southern New South Wales and northeast Victoria, Australia, palatable taxa of E. curvula offer advantages that complement those of the species that are traditionally sown in temperate pastures in a landscape context.This hypothesis was based on a review of literature showing that, prior to European settlement, the vegetation, the landscape and the climate were broadly in balance, and the wateruse pattern of the vegetation of southeastern Australia resulted in water being used more-or-less completely by the end of summer. This maximised the capacity
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Johnston, William Henry. "The role of Eragrostis curvula (Schrad.) Nees. complex in temperate pastures in southeastern Australia /." View thesis View thesis, 2003. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030506.100204/index.html.

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Van, der Willigen Clare. "Comparisons of the resurrection grass, Eragrostis nindensis, with the related desiccation-sensitive species, E. curvula." Doctoral thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/6104.

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Bibliography: leaves 100-133.<br>Desiccation tolerance of the inner leaves of Eragrostis nindensis is compared with the desiccation sensitivity of the outer leaves, as well as those of the closely related species, E. curvula. Both E. nindensis and E. curvula dehydrate to a relative water content (RWC) ofless than 5% in two weeks. Photosynthetic activity in E. curvula is maintained down to 40% RWC, after which further drying results in a sudden irreversible breakdown of the photosynthetic system and its pigments.
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Willigen, Clare Vander. "Comparisons of the resurrection grass, Eragrostis nindensis, with the related desiccation-sensitive species, E. curvula." Doctoral thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/11403.

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Bibliography: leaves 100-133.<br>Desiccation tolerance of the inner leaves of Eragrostis nindensis is compared with the desiccation sensitivity of the outer leaves, as well as those of the closely related species, E. curvula. Both E. nindensis and E. curvula dehydrate to a relative water content (RWC) ofless than 5% in two weeks. Photosynthetic activity in E. curvula is maintained down to 40% RWC, after which further drying results in a sudden irreversible breakdown of the photosynthetic system and its pigments.
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Skinner, Amy. "Investigating the effect of Glomus etunicatum colonization on structure and phloem transport in roots of Eragrostis curvula (Umgeni)." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1003796.

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The symbiotic unit of an arbuscular mycorrhizal fungus and its host is able toachieve and maintain far higher inflow of nutrients than non-mycorrhizal roots. The colonization strategy of the mycobiont within the plant is intrinsic to the symbiosis with respect to both structural adaptations and nutrient exchange. An investigation into the effect of Glomus etunicatum colonization on the structure and phloem transport in Eragrostis curvula (Umgeni) allowed for greater insight into the dynamic of the symbiosis. The combined use of stains (such as Trypan Blue, Chlorazol Black, Safranin and Fast Gr
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Hely, Sara Elizabeth Lorraine Biological Earth &amp Environmental Sciences Faculty of Science UNSW. "The responses of C4 invasive grass Eragrostis curvula and C3 native grass Austrodanthonia Racemosa under elevated CO2 and water limitation." Awarded by:University of New South Wales, 2008. http://handle.unsw.edu.au/1959.4/35671.

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The concentration of atmospheric carbon dioxide (CO2) in the atmosphere has increased by 35% since pre-industrial levels. Projections for the next 100 years indicate an increase to levels between 490 and 1260 parts per million by volume (ppm) of CO2, equating to a 75 % to 350 % increase in concentration since the year 1750. Associated with this increase in [CO2] will be a 1.4 to 5.8?? C increase in lower atmospheric temperature. While past research has attempted to address the effects of such climatic changes on individual plant responses, predictions of plant responses at the ecosystem level
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Mynhardt, Herman. "Effect of nitrogen and energy supplementation on intake, digestibility and rumen fermentation efficiency in sheep fed poor quality Eragrostis curvula hay." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/63291.

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The overall aim of the study was to study the effects of starch and urea supplementation on roughage intake, digestibility, and microbial nitrogen synthesis (MNS) in sheep fed low-quality Eragrostis curvula hay (< 3% CP, 80% NDF; DM basis). In Trial 1, urea partially substituted the rumen degradable nitrogen (RDN) fraction of sunflower meal (SFM). Neutral detergent fibre (NDF) digestibility was higher in the treatments where urea substituted 45% and 60% of the RDN fraction of SFM. Treatment did not affect roughage intake, rumen ammonia nitrogen (RAN), MNS or efficiency of MNS (EMNS), su
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Yasui, Simone-Louise Emiko. "Managing the community: Assessing the efficacy of invasive plant control strategies in Australian grassy ecosystems from deserts to dairy country." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/213051/1/Simone-Louise_Yasui_Thesis.pdf.

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This thesis investigated how management affects plants, seedbanks, and rhizospheric bacterial communities in grasslands. Control strategies studied reduced invasive grass cover in desert grasslands even though the invader holds unique root-associations with bacteria. Seedbank stores of invaders were high in both desert and dairy-country grasslands suggesting control strategies should also reduce seedbanks.
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Johnston, William H. "The role of Eragrostis curvula (Schrad.) Nees. complex in temperate pastures in southeastern Australia." Thesis, 2003. http://handle.uws.edu.au:8081/1959.7/29.

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This thesis examines the hypothesis that, in southern New South Wales and northeast Victoria, Australia, palatable taxa of E. curvula offer advantages that complement those of the species that are traditionally sown in temperate pastures in a landscape context.This hypothesis was based on a review of literature showing that, prior to European settlement, the vegetation, the landscape and the climate were broadly in balance, and the wateruse pattern of the vegetation of southeastern Australia resulted in water being used more-or-less completely by the end of summer. This maximised the capacity
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Capítulos de libros sobre el tema "Eragrostis curvula"

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Mentz, A. M., A. Hassen, W. A. Van Niekerk, H. Mynhardt, and R. Coertze. "The effect of substituting urea for a commercial slow release urea as supplement to sheep fed a poor quality Eragrostis curvula hay." In Energy and protein metabolism and nutrition in sustainable animal production. Wageningen Academic Publishers, 2013. http://dx.doi.org/10.3920/978-90-8686-781-3_23.

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Cardone, S., P. Polci, J. P. Selva, et al. "Novel genotypes of the subtropical grass Eragrostis curvula for the analysis of apomixis (diplospory)." In Molecular breeding for the genetic improvement of forage crops and turf. Brill | Wageningen Academic, 2005. http://dx.doi.org/10.3920/9789086865550_065.

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Echenique, V., S. Felitti, N. Paniego, et al. "Discovery and functional categorisation of expressed sequence tags from flowers of Eragrostis curvula genotypes showing different ploidy levels and reproductive modes." In Molecular breeding for the genetic improvement of forage crops and turf. Brill | Wageningen Academic, 2005. http://dx.doi.org/10.3920/9789086865550_066.

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Actas de conferencias sobre el tema "Eragrostis curvula"

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Brown, J., A. Merchant, and L. Ingram. "Eragrostis Curvula Effects on Above and Below-Ground Plant Species Richness and Diversity." In XXV International Grassland Congress. International Grassland Congress 2023, 2023. http://dx.doi.org/10.52202/071171-0016.

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