Journal articles: 'Native grass'

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Williams, Paul R., Eleanor M. Collins, Mick Blackman, Clare Blackman, Jackie McLeod, Leasie Felderhof, Lauren Colless, Kate Masters, and Simon Coates. "Introduced and native grass-derived smoke effects on Cymbopogon obtectus germination." Australian Journal of Botany 62, no. 6 (2014): 465. http://dx.doi.org/10.1071/bt14227.

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Introduced grasses, such as buffel, alter the dynamics of grassy ecosystems by replacing native species and influencing recruitment. Several different smoke-derived chemicals are separately responsible for the promotion and inhibition of germination of various plant species. We tested whether smoke derived from the introduced buffel grass (Cenchrus ciliaris) produced the same density of germination as provided by smoke derived from a native spinifex grass (Triodia brizoides). Smoke from both spinifex and buffel grass significantly enhanced the germination of a native lemon grass (Cymbopogon obtectus) in comparison to untreated seed, reflecting the significant role of fire in woodlands across northern Australia. This is the first record of smoke-promoted germination in a species of Cymbopogon. However, smoke from the exotic buffel grass provided the same level of germination as that from the native spinifex, suggesting similarity in smoke chemicals involved. Further research is required to test the effect of buffel smoke on the germination of other species and whether exotics such as buffel grass provide the same temperature profile in the topsoil as does spinifex, and therefore equivalent germination cues to heat-shock responsive native plants.

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Lindsay, Elizabeth A., and Saul A. Cunningham. "Native Grass Establishment in Grassy Woodlands with Nutrient Enriched Soil and Exotic Grass Invasion." Restoration Ecology 19, no. 101 (June 7, 2010): 131–40. http://dx.doi.org/10.1111/j.1526-100x.2010.00680.x.

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Gaynor, Virginia A., and Mary Hockenberry Meyer. "Identifying Native Prairie Grass Seedlings." HortScience 33, no. 3 (June 1998): 450e—451. http://dx.doi.org/10.21273/hortsci.33.3.450e.

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There is great interest in prairie gardens and prairie restorations in the central United States. Small prairie gardens are often established with plugs, but most restorationists and landscape contractors use seed for large plantings. If initial establishment is poor, restorations are often interseeded the second or third season. However, to evaluate early establishment and determine if interseeding is necessary, contractors must be able to identify native grasses in the seedling and juvenile stages. In this study we investigated vegetative characteristics of native prairie grass seedlings. Seven species of native prairie grass were grown in the greenhouse: Andropogon gerardii (big bluestem), Sorghastrum nutans (Indian grass), Panicum virgatum (switch grass), Schizachyrium scoparium (little bluestem), Bouteloua curtipendula (sideoats grama), Elymus canadensis (Canada wildrye), and Bromus kalmii (Kalmís brome). Every 2 to 3 weeks after germination, seedlings were photographed, pressed, and mounted. Additional photographs were taken through the dissecting scope at key stages of development. Ligules and auricles were found to be useful in distinguishing species, and our close-up photographs highlight these structures. Hairiness and color were variable within a species and could not be used reliably in identification. A seedling identification key will be presented for the species studied.

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Flanders, Aron A., William P. Kuvlesky, Donald C. Ruthven, Robert E. Zaiglin, Ralph L. Bingham, Timothy E. Fulbright, Fidel Hernández, and Leonard A. Brennan. "Effects of Invasive Exotic Grasses on South Texas Rangeland Breeding Birds." Auk 123, no. 1 (January 1, 2006): 171–82. http://dx.doi.org/10.1093/auk/123.1.171.

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AbstractInvasive exotic plants are a major threat to many species of wild birds. When these plants become established and widespread, the floristic composition of native plant communities becomes simplified, which can result in long-term and often irreversible habitat degradation for birds and other animals. Until recently, few studies have focused on the effect of invasive exotic grasses on breeding birds in southwestern rangelands. During the 2001 and 2002 breeding seasons (May-June), we compared the abundance and species richness of breeding birds, native flora, and arthropods on South Texas rangeland plots dominated by native grasses and plots dominated by two invasive exotic grasses, Lehmann lovegrass (Eragrostis lehmanniana) and buffelgrass (Cenchrus ciliaris). Native-grass cover was >400% greater on native-grass sites than on exotic-grass sites. Forb and grass species-richness were higher on native-grass sites. Shrub canopy cover, bare ground, and vegetation height measurements were similar on native-grass and exotic-grass sites. Overall bird abundance was 32% greater on native-grass sites than on exotic-grass sites. Lark Sparrows (Chondestes grammacus) were 73% more abundant on native-grass sites. Four other species—Black-throated Sparrow (Amphispiza bilineata), Northern Mockingbird (Mimus polyglottos), Northern Bobwhite (Colinus virginianus), and Cassin’s Sparrow (Aimophilla cassini)— were 26–70% more abundant on native-grass sites. The guild of birds that foraged on the ground under open brush canopies was almost twice as abundant on native-grass sites. Arthropod abundance was 60% greater on the native-grass site we sampled. Specifically, spiders, beetles, and ants were 42–83% more abundant on a native-grass site than on a buffelgrass site. Compared with rangelands dominated by native vegetation, areas dominated by Lehmann lovegrass and buffelgrass in South Texas appear to provide less suitable habitat for breeding birds, especially for bird species that forage on or near the ground.Efectos de Pastos Invasores Exóticos en las Aves que Nidifican en los Campos de Pastoreo del Sur de Texas

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Stevens, J., I. Chivers, D. Symons, and K. Dixon. "Acid-digestion improves native grass seed handling and germination." Seed Science and Technology 43, no. 2 (August 1, 2015): 313–17. http://dx.doi.org/10.15258/sst.2015.43.2.19.

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Schlierenzauer, Corinne, Anita C. Risch, Martin Schütz, and Jennifer Firn. "Non-Native Eragrostis curvula Impacts Diversity of Pastures in South-Eastern Australia Even When Native Themeda triandra Remains Co-Dominant." Plants 10, no. 3 (March 22, 2021): 596. http://dx.doi.org/10.3390/plants10030596.

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Lowland grassy woodlands in Australia’s south-east face reductions in native plant diversity because of invasion by non-native plants. We compared the relative abundance and diversity of plant species among sites dominated by the native Kangaroo grass (KG) Themeda triandra with sites co-dominated by the non-native African lovegrass (ALG) Eragrostis curvula and KG. We found significant differences in plant species composition depending on the dominant species. Furthermore, our results revealed differences in several diversity parameters such as a lower species richness and forb diversity on sites co-dominated by ALG and KG. This was the case despite the functional similarity of both ALG and KG—both C4 perennial tussock grasses of a similar height. Therefore, our results highlight the critical function of the native KG in maintaining and enhancing the target plant species composition and diversity within these grassy woodlands. Herbivore grazing potentially impacts on the abundance of the dominant grass and forb species in various ways, but its impact likely differs depending on their evolutionary origin. Therefore, disentangling the role of individual herbivore groups (native-, non-native mammals, and invertebrates) on the plant community composition of the lowland grassy woodlands is essential to find appropriate grazing regimes for ALG management in these ecosystems.

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L. McArdle c. Nadolny, S., and b. M. Sindel. "Invasion of native vegetation by Coolatai Grass Hyparrhenia hirta: impacts on native vegetation and management implications." Pacific Conservation Biology 10, no. 1 (2004): 49. http://dx.doi.org/10.1071/pc040049.

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Coolatai Grass Hyparrhenia hirta is an exotic perennial grass and environmental weed that is spreading rapidly in parts of southeastern Australia. This study examined the effects of Coolatai Grass invasion on the composition of ground strata vegetation within Kwiambal National Park in northern New South Wales. Plots that were heavily infested with Coolatai Grass together with matching control plots were surveyed. Coolatai Grass infestation reduced the richness of native ground strata plants and their projected groundcover, but did not affect the number of exotic species in plots. The control plots varied markedly in floristic composition, but infested sites were more homogenous, with Coolatai Grass clearly dominating the ground strata vegetation. Coolatai Grass appears to increase in abundance following fire; it persists under heavy grazing and is resistant to many herbicides. Spot spraying small swards and isolated tussocks with glyphosate or flupropanate provides prospects of control on a small scale, but there are no suitable methods for largescale control. Changes to roadside management practices could help to reduce the spread of Coolatai Grass, but research into seed bank dynamics and appropriate control techniques is required, as well as increased awareness of the threat to native vegetation posed by the species.

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Stevens, Jason M., and Jeffrey S. Fehmi. "Early Establishment of a Native Grass Reduces the Competitive Effect of a Non-Native Grass." Restoration Ecology 19, no. 3 (April 25, 2011): 399–406. http://dx.doi.org/10.1111/j.1526-100x.2009.00565.x.

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Narem, Diane M., Mary Hockenberry Meyer, Chengyan Yue, and Nicole Roth. "Point of Sale Displays Influence Consumer Decisions to Purchase Native Grasses." HortTechnology 28, no. 6 (December 2018): 748–54. http://dx.doi.org/10.21273/horttech04124-18.

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The demand for native plants has been increasing as consumers exhibit stronger interest in sustainable gardening and landscaping. To determine whether point of sale (POS) displays increased consumer knowledge of native grass (Poaceae) benefits and affected consumer purchases, a marketing study was conducted over 2 years at five garden centers in Minnesota. A POS display poster and plant tags listing four benefits of native grasses were displayed at the garden centers in 2016 and 2017. We surveyed 341 consumers at these garden centers to understand consumer knowledge of native grasses and the influence of the POS display. Respondents totaled 84 (30.7%) who indicated they had bought a native grass that day, and of those 84, 54 (64.3%) had seen the display. The binary probit model estimates showed that seeing the POS display increased the likelihood of a native grass purchase. If a consumer had previously purchased a native grass, they were more likely to purchase a native grass again. Consumers who expressed a greater willingness to purchase native grasses based on their environmental benefits were more likely to purchase a native grass. However, neither the level of knowledge that consumers possessed about native grasses nor demographics significantly increased likelihood of purchase.

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Young, Stephen L., and Victor P. Claassen. "Native Perennial Grasses in Highway Medians: Pre- and Postplant Techniques for Establishment in a Mediterranean Climate." Invasive Plant Science and Management 1, no. 4 (October 2008): 368–75. http://dx.doi.org/10.1614/ipsm-08-077.1.

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AbstractWithin highway rights-of-way, native perennial grasses provide desirable services to support natural and human constructed ecosystems. However, native perennial grass establishment in annual grass dominated roadsides of semiarid and Mediterranean climates of the western United States requires specific cultural and chemical management treatments to control weeds. In 2004, field studies were conducted in Sacramento Valley, California to determine the effect of herbicide, disc cultivation, and species selection on native perennial grass establishment and annual weed persistence. Perennial grass species mixes common to drier and wetter upland areas in northern California were drill seeded at two sites (I-5 North and I-5 South) that had been burned in 2003 and received weed control (i.e., herbicide, cultivation, mowing) in spring 2004. Herbicides were the most important treatments for native perennial grass establishment and weed reduction. Native perennial grass species persistence was largely unaffected by cultivation or native plant accessions at these sites. Native perennial grass density increased at I-5 North in the second year of growth (2006) resulting in a plant density totaled across all herbicide regimes of 3.9 plants m−1 compared to 2.5 plants m−1 at I-5 South. Vigorous native perennial grass growth in the more fertile and less droughty soils of I-5 North helped to limit annual weeds through competition, which is anticipated to reduce the need for chemical and mechanical control in years following early establishment.

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Hendrickson, J. R., M. R. Schmer, and M. A. Sanderson. "Water Use Efficiency by Switchgrass Compared to a Native Grass or a Native Grass Alfalfa Mixture." BioEnergy Research 6, no. 2 (January 15, 2013): 746–54. http://dx.doi.org/10.1007/s12155-012-9290-3.

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Garden, Denys, Christine Jones, Doug Friend, Meredith Mitchell, and Peter Fairbrother. "Regional research on native grasses and native grass‐based pastures." New Zealand Journal of Agricultural Research 39, no. 4 (December 1996): 471–85. http://dx.doi.org/10.1080/00288233.1996.9513209.

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Alvarez, Erin, Sloane M. Scheiber, and David R. Sandrock. "Irrigation Requirements and Drought Response of Two Ornamental Grass Species." HortScience 41, no. 4 (July 2006): 1009B—1009. http://dx.doi.org/10.21273/hortsci.41.4.1009b.

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Water use is the most important environmental issue facing the horticulture industry. As a result, many water management districts are recommending native plants for their putative low-water requirements. Numerous textbooks and trade journals claim native plants use less water than non-natives; however, previous research found no difference in water use efficiency in the field between native and non-native species. Furthermore, recommendations of ornamental grasses for use as low-maintenance and low-water-requiring landscape plants have recently escalated. This study evaluated non-native Miscanthus sinensis `Adagio' and the native Eragrostis spectabilis for irrigation requirements and drought response in a landscape setting. To simulate maximum stress, both species were planted into field plots in an open-sided, clear polyethylene covered shelter. Each species was irrigated on alternating days at 0, 0.25, 0.5, or 0.75 L for a 90-day period. Growth index and height were recorded at biweekly intervals, and final shoot and root dry masses were taken at completion of the study. Significant treatment and species effects were found for height, growth index, shoot dry weight, and biomass. Plants receiving 0.75 L of irrigation had the greatest growth, and non-irrigated plants grew significantly less. Comparisons between species found growth was greatest among Eragrostis spectabilis plants for all parameters.

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Abella, Scott R., Lindsay P. Chiquoine, Jeremy M. Moss, Eric D. Lassance, and Charles D. Schelz. "Developing minimal-input techniques for invasive plant management: perimeter treatments enlarge native grass patches." Invasive Plant Science and Management 13, no. 2 (March 27, 2020): 108–13. http://dx.doi.org/10.1017/inp.2020.9.

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AbstractThere is a continual need for invasive plant science to develop approaches for cost-effectively benefiting native over nonnative species in dynamic management and biophysical contexts, including within predominantly nonnative plant landscapes containing only small patches of native plants. Our objective was to test the effectiveness of a minimal-input strategy for enlarging native species patches within a nonnative plant matrix. In Pecos National Historical Park, New Mexico, USA, we identified 40 native perennial grass patches within a matrix of the nonnative annual forb kochia [Bassia scoparia (L.) A.J. Scott]. We mechanically cut B. scoparia in a 2-m-wide ring surrounding the perimeters of half the native grass patches (with the other half as uncut controls) and measured change in native grass patch size (relative to pretreatment) for 3 yr. Native grass patches around which B. scoparia was cut grew quickly the first posttreatment year and by the third year had increased in size four times more than control patches. Treated native grass patches expanded by an average of 25 m2, from 4 m2 in October 2015 before treatment to 29 m2 in October 2018. The experiment occurred during a dry period, conditions that should favor B. scoparia and contraction of the native grasses, suggesting that the observed increase in native grasses occurred despite suboptimal climatic conditions. Strategically treating around native patches to enlarge them over time showed promise as a minimal-input technique for increasing the proportion of the landscape dominated by native plants.

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Hayes, Monica, and Jamie B. Kirkpatrick. "Influence of Ammophila arenaria on half a century of vegetation change in eastern Tasmanian sand dune systems." Australian Journal of Botany 60, no. 5 (2012): 450. http://dx.doi.org/10.1071/bt12071.

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There is strong observational evidence that marram grass Ammophila arenaria transforms vegetation when it invades temperate coastal sand dunes. Because of contemporaneous marram grass introduction, sea level rise, climate change and coastal land use change, we use control dune systems to test the hypotheses that marram grass displaces native sand-binding grasses, reduces the area of bare sand and facilitates shrub invasion. We mapped vegetation from aerial photographs at four times between 1948 and 2007 on four pairs of sand dune systems, with one of each pair being heavily invaded by marram grass during the period of observation. We calculated the transitions between cover types between times. On the dune systems with marram grass, dunes became taller and more regular, native sand-binders became rare, bare sand decreased in area and native shrubs colonised the stabilised dunes. In the absence of marram grass the dunes remained dynamic, with much bare sand. At two of these control sites, increases in wind strength and sea level may have facilitated the development of transgressive dunes and eroded the native sand-binders. At the remaining two control sites, native sand-binders created low incipient foredunes. Shrub invasion occurred at most control sites. We conclude that marram grass does displace native sand-binders and decrease the proportion of bare sand, but that shrub invasion is partly independent of its introduction.

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Odgers, B. M. "Seasonal Variation in Buried Germinable Seed Banks of Grass Species in an Urban Eucalypt Forest Reserve." Australian Journal of Botany 47, no. 4 (1999): 623. http://dx.doi.org/10.1071/bt97031.

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Grass species in the buried germinable seed banks of selected forest, mown and road-bank sites in the Mt Coot-tha Reserve, south-eastern Queensland were quantified for five consecutive seasons to determine seasonal patterns in the seed banks, and differences in seasonal patterns between native and exotic grass species, and between grasses in natural and disturbed forest areas. Ten types of seed banks were identified. While native and exotic species had similar seed banks most native grass species had transient seed banks whereas most exotic grass species had persistent seed banks.

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Brown, Sharon L., Nick Reid, Jackie Reid, Rhiannon Smith, R. D. B. (Wal) Whalley, and David Carr. "Topsoil removal and carbon addition for weed control and native grass recruitment in a temperate-derived grassland in northern New South Wales." Rangeland Journal 39, no. 4 (2017): 355. http://dx.doi.org/10.1071/rj17029.

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Restoring the grassy understorey to temperate woodlands in south-eastern Australia is often disregarded due to a poor understanding of the techniques involved. The natural recruitment of native grasses is uncommon in the remnants of some of these woodlands, so the restoration of the grass layer is often dependent on interventions to overcome restoration barriers. Soil enrichment from agricultural fertilisers favours the invasion of exotic broadleaf weeds and grasses, and is one of the primary barriers to the successful recruitment and establishment of native grasses, which dominated before agricultural development. This study on the Northern Tablelands of New South Wales investigated the effects of different weed control treatments – scalping, glyphosate (Roundup®) herbicide, and combinations of glyphosate with carbon (sugar and sawdust) addition and a control (nil treatment) recruitment of native grasses and weed emergence after broadcast seeding. The experimental site was a mown grass lawn consisting of fescue (Festuca arundinacea Shreb.), cocksfoot (Dactylis glomerata L.) and paspalum (Paspalum dilatatum Poir). Native grass recruitment varied significantly between treatments. The maximum number of recruits in scalped plots was 29 recruits m–2 compared with an average of <2 recruits m–2 for the glyphosate and glyphosate carbon combinations. Scalping reduced soil nitrogen from 0.6% in non-scalped plots to 0.1% and phosphorus from 191.6 ppm to 40.3 ppm. Maximum weed cover occurred in the glyphosate herbicide treatment (45%), whereas combinations of glyphosate plus either sugar or sawdust maintained weed cover at 13%. The present study suggests that scalping may be a successful intervention strategy because it has the potential to significantly improve native grass recruitment compared with other restoration methods used in this study. Scalping allows more time for native grasses to germinate and establish in the absence of competitive fast-growing exotic weeds.

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SANTOS, JESSICA SILVA, JACILENE FRANCISCA SOUZA SANTOS, LÁZARA JOSSIKARLA DE OLIVEIRA LOPES, JOHNY DE JESUS MENDONÇA, FRANCISCO SANDRO RODRIGUES HOLANDA, and REGINA HELENA MARINO. "ARBUSCULAR MYCORRHIZAL FUNGI AND DARK SEPTATE ENDOPHYTIC FUNGI ON THE BIOMASS DEVELOPMENT OF VETIVER GRASS." Revista Caatinga 31, no. 3 (July 2018): 602–11. http://dx.doi.org/10.1590/1983-21252018v31n308rc.

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ABSTRACT Vetiver grass is a member of the grass family Poaceae. Its fast development is probably due to the interaction with native microbiota, whose influence has not been studied yet. The objective of this work was to evaluate the colonization and development of the vetiver grass (Chrysopogon zizanioides (L.) Roberty) inoculated with arbuscular mycorrhizal fungi and dark septate endophytic fungi. The experimental design was a completely randomized design with six treatments (control, without mycorrhizal fungi, native inoculants, UFLA05 - Gigaspora albida, UFLA351 - Rhizoglomus clarum, UFLA372 - Claroideoglomus etunicatum, and UFLA401 - Acaulospora morrowiae), with three replicates each. Vetiver grass tillers as well as the native microbial inoculum were obtained from the Lower São Francisco river experimental area, located in Sergipe state, Northeastern Brazil. There was a negative interaction between all tested UFLAs mycorrhizal isolates and the native microbiota (mycorrhizal and endophytic fungi) in the treatments, especially when taking into consideration plant height and volume of roots. The effects of inoculation with UFLA isolates may have been influenced by the presence of the native mycorrhizal fungi and the dark septate endophytic fungi. Vetiver grass was responsive to the native inoculant. The mycorrhizal colonization of the vetiver grass was vesicular, but the formation of the arbuscules can be influenced by the interaction between the fungus, plant, and the environment.

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Banks, Robert, Laura Wendling, Kaye Basford, Anthony Ringrose-Voase, and Vera Banks. "Beneficial soil profile differences associated with tropical grass pastures on sodic texture contrast soils in Northern New South Wales." Soil Research 58, no. 2 (2020): 207. http://dx.doi.org/10.1071/sr19140.

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Volunteer native pastures on widespread sodic texture contrast soils in northern New South Wales slopes and plains are known for their limited agricultural production. Fertilised tropical grass pastures on these soils are reported to have much increased pasture production, deeper, more abundant root mass and greater soil profile moisture storage. The subsoil physical differences between native and tropical grass pastures are not well understood. This observational study compared root abundance, soil structure and soil physical parameters (dispersion, bulk density, porosity and pore distribution) in sodic texture contrast soils under native and adjacent, well established and fertilised tropical pastures in a 14-year chronosequence. The physical differences observed may have contributed to improved soil water storage reported by other authors. Fourteen years after establishment, mean root abundance was significantly lower in soils under native pasture and greater in the tropical grass pasture system with 4600 and 8400 m of roots m–3 respectively. Dispersion values were high in native pastures but soils under tropical pastures had to be physically worked to cause dispersion. Bulk density under native pasture was significantly higher than in tropical grass pastures by 0.08 g cm–3 at 0–10 cm and by 0.2 g cm–3 in the upper B horizons. Total soil porosity of topsoils and upper B horizons was consequently lower in native than in tropical grass pasture. Tropical grass pasture upper B horizons had a three-fold greater macroporosity (pores > 30 µm), than under native pastures. This is equivalent to significantly greater potential water flow through stable macropores in dense sodic B horizons in tropical pastures. These findings indicate that pasture system selection and management positively affects deep soil structural properties which promote pasture productivity. The study contributes to a better understanding of mechanisms of published deeper water storage in tropical grass pasture systems on these normally low production soils.

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Flory, S. Luke, and Keith Clay. "Non-native grass invasion alters native plant composition in experimental communities." Biological Invasions 12, no. 5 (July 31, 2009): 1285–94. http://dx.doi.org/10.1007/s10530-009-9546-9.

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Bahm, Matt A., Thomas G. Barnes, and Kent C. Jensen. "Native Grass Establishment using Journey®Herbicide." Natural Areas Journal 35, no. 1 (January 2015): 69–73. http://dx.doi.org/10.3375/043.035.0109.

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Priest, Anne, and Howard Epstein. "Native Grass Restoration in Virginia Old Fields." Castanea 76, no. 2 (June 2011): 149–56. http://dx.doi.org/10.2179/09-056.1.

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Lodge, G. M. "Temperate native Australian grass improvement by selection." New Zealand Journal of Agricultural Research 39, no. 4 (December 1996): 487–97. http://dx.doi.org/10.1080/00288233.1996.9513210.

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Flory, S. Luke, and Keith Clay. "Non-native grass invasion suppresses forest succession." Oecologia 164, no. 4 (June 26, 2010): 1029–38. http://dx.doi.org/10.1007/s00442-010-1697-y.

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Holl, Karen D., Elizabeth A. Howard, Timothy M. Brown, Robert G. Chan, Tara S. de Silva, E. Tyler Mann, Jamie A. Russell, and William H. Spangler. "Efficacy of Exotic Control Strategies for Restoring Coastal Prairie Grasses." Invasive Plant Science and Management 7, no. 4 (December 2014): 590–98. http://dx.doi.org/10.1614/ipsm-d-14-00031.1.

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AbstractRestoration in Mediterranean-climate grasslands is strongly impeded by lack of native propagules and competition with exotic grasses and forbs. We report on a study testing several methods for exotic plant control combined with planting native grasses to restore prairies in former agricultural land in coastal California. Specifically we compared tarping (shading out recently germinated seedlings with black plastic) once, tarping twice, topsoil removal, herbicide (glyphosate), and a control treatment in factorial combinations with or without wood mulch. Into each treatment we planted three native grass species (Elymus glaucus, Hordeum brachyantherum, andStipa pulchra) and monitored plant survival and cover for three growing seasons. Survival of native grass species was high in all treatments, but was slightly lower in unmulched soil removal and control treatments in the first 2 yr. Mulching, tarping, and herbicide were all effective in reducing exotic grass cover and enhancing native grass cover for the first 2 yr, but by the third growing season cover of the plant guilds and bare ground had mostly converged, primarily because of the declining effects of the initial treatments. Mulching and tarping were both considerably more expensive than herbicide treatment. Topsoil removal was less effective in increasing native grass cover likely because soil removal altered the surface hydrology in this system. Our results show that several treatments were effective in enhancing native grass establishment, but that longer term monitoring is needed to evaluate the efficacy of restoration efforts. The most appropriate approach to controlling exotics to restore specific grassland sites will depend not only on the effectiveness, but also on relative costs and site constraints.

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Vickery, P. J., M. J. Hill, and G. E. Donald. "Satellite derived maps of pasture growth status: association of classification with botanical composition." Australian Journal of Experimental Agriculture 37, no. 5 (1997): 547. http://dx.doi.org/10.1071/ea97014.

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Summary. Spectral data from the green, red and near-infrared bands of Landsat MSS and Landsat TM satellite imagery acquired in mid-spring were classified into 3 and 6 pasture growth classes respectively. The classifications were compared with a site database of botanical composition for the Northern Tablelands of New South Wales to examine the association between spectral growth class and pasture composition. Pastures ranged in composition from unimproved native perennial grasses through semi-improved mixtures of native and naturalised grasses and legumes to highly improved temperate perennial grasses and legumes. For 3 years of MSS data, the fast growth class had a mean botanical composition of about 80% improved perennial grass and 0% native; medium growth class averaged 46% improved perennial grass and 14% native; while the slow growth class had about 60% native and 1% improved perennial grass when averaged over 3 years of MSS data. For the 6 class TM data from a single year, a predictive logistic regression of cumulative probability was developed for percentage of ‘very fast’ growth pixels and ordered 10 percentile categories of improved perennial grass or native grass. Differences in patch characteristics between classes with MSS disappeared with TM reclassified to the same 3 class level. Most probable pasture type was inferred from 3 class MSS and TM data using Bayesian probability analysis. The resulting maps were similar in general appearance but detail was better with the TM data. The pasture growth classification identified highly improved perennial grass pastures and native pastures but sensitivity to intermediate pasture types was poor. Future improvement will come from direct measurement of biophysical characteristics using vegetation indices or inversion of reflectance models.

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Kyser, Guy B., Arthur Hazebrook, and Joseph M. DiTomaso. "Integration of Prescribed Burning, Aminopyralid, and Reseeding for Restoration of Yellow Starthistle (Centaurea solstitialis)-Infested Rangeland." Invasive Plant Science and Management 6, no. 4 (December 2013): 480–91. http://dx.doi.org/10.1614/ipsm-d-12-00094.1.

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AbstractYellow starthistle (Centaurea solstitialis) is among the most invasive plant species in the western United States. The long-term management of yellow starthistle should include an integrated approach that incorporates establishment of competitive vegetation. In this study, conducted in two locations at Fort Hunter Liggett in Monterey County, California, we evaluated the combination of prescribed burning, the herbicide aminopyralid, and reseeding of native broadleaf and grass species on both yellow starthistle control and native plant restoration. Both study sites were burned in late October 2009. Over the following season, aminopyralid was applied at three timings and native plant species were seeded at three timings, using both a drill-seeder and broadcast spreader. Evaluations over the next 3 yr showed that aminopyralid provided complete to nearly complete control of yellow starthistle when applied between January and March, and this level of control was maintained for two seasons. Native plants failed to establish when broadcast seeded, regardless of the timing. December and January drill seeding timings were the most successful in establishing native species. There was a strong herbicide and drill seed timing interaction effect on native grass cover at both study sites. Over the course of the study the native perennial grass Stipa cernua was the most successful seeded species to establish, but establishment was slow and required 3 yr. Our results indicate that a January or March aminopyralid treatment integrated with a native perennial grass drill seeding program in January offers the greatest probability of both successful yellow starthistle control and perennial grass establishment.

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Radrizzani, Alejandro, H. Max Shelton, Scott A. Dalzell, and Gunnar Kirchhof. "Soil organic carbon and total nitrogen under Leucaena leucocephala pastures in Queensland." Crop and Pasture Science 62, no. 4 (2011): 337. http://dx.doi.org/10.1071/cp10115.

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Soil organic carbon (OC) and total nitrogen (TN) accumulation in the top 0–0.15 m of leucaena–grass pastures were compared with native pastures and with continuously cropped land. OC and TN levels were highest under long-term leucaena–grass pasture (P < 0.05). For leucaena–grass pastures that had been established for 20, 31, and 38 years, OC accumulated at rates that exceeded those of the adjacent native grass pasture by 267, 140, and 79 kg/ha.year, respectively, while TN accumulated at rates that exceeded those of the native grass pastures by 16.7, 10.8, and 14.0 kg/ha.year, respectively. At a site where 14-year-old leucaena–grass pasture was adjacent to continuously cropped land, there were benefits in OC accumulation of 762 kg/ha.year and in TN accumulation of 61.9 kg/ha.year associated with the establishment of leucaena–grass pastures. Similar C : N ratios (range 12.7–14.5) of soil OC in leucaena and grass-only pastures indicated that plant-available N limited soil OC accumulation in pure grass swards. Higher OC accumulation occurred near leucaena hedgerows than in the middle of the inter-row in most leucaena–grass pastures. Rates of C sequestration were compared with simple models of greenhouse gas (GHG) emissions from the grazed pastures. The amount of carbon dioxide equivalent (CO2-e) accumulated in additional topsoil OC of leucaena–grass pastures ≤20 years old offset estimates of the amount of CO2-e emitted in methane and nitrous oxide from beef cattle grazing these pastures, thus giving positive GHG balances. Less productive, aging leucaena pastures >20 years old had negative GHG balances; lower additional topsoil OC accumulation rates compared with native grass pastures failed to offset animal emissions.

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Rhodes, Aaron C., Robert M. Plowes, Dino J. Martins, Ivy Ng’Iru, and Lawrence E. Gilbert. "The invasiveness of Guinea grass (Megathyrsus maximus) is characterized by habitat and differing herbivore assemblages in its native and invaded range." NeoBiota 78 (November 11, 2022): 25–44. http://dx.doi.org/10.3897/neobiota.78.87069.

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A significant challenge of global change is the human-mediated movement of pasture grasses and their subsequent impact on ecosystem processes when they become invasive. We must understand invasive grass ecology and their natural enemies in native and introduced ranges to mitigate these impacts. Guinea grass (Megathyrsus maximus) is a pantropically introduced pasture grass that escapes intended areas and invades native ecosystems – threatening biodiversity and ecosystem function. The success of invasive plants has often been attributed to ecological release from stressors, including natural enemies and resource availability. Our objective was to assess Guinea grass functional traits across three different habitat types in native and invaded ranges by documenting ungulate and arthropod abundance, diversity, and feeding guilds. Guinea grass functional traits were assessed in three habitat types: grassland, riparian, and woody thickets around nitrogen-fixing Prosopis glandulosa in its introduced range in Texas, USA, and Senegalia mellifera in its native range in Kenya. We characterized Guinea grass functional traits by measuring plant height, cover, biomass, root-to-shoot ratios, and reproductive traits. We then examined the phytophagous arthropod and ungulate abundance and feeding guild diversity across the three habitat types. We hypothesized that functional trait expression related to invasiveness would be associated with Guinea grass in its introduced range. Also, we hypothesized that the abundance and diversity of phytophagous arthropods and ungulates would be lower in the invaded range. Finally, we hypothesized that Guinea grass functional traits would differ between the three habitat types, given the habitat types’ innate differences in resource availability. We found that Guinea grass was 2.5 times taller and 3.3 times more productive and covered 2.5 times more area in its invaded versus native ranges. Introduced Guinea grass had higher reproduction rates with 2.5 times more reproductive tillers, while habitat type drove vegetative reproduction with 15 times more stoloniferous establishment in wooded and riparian sites than grasslands. Texan ungulate communities were less species-rich, less functionally diverse, and less abundant than the Kenyan ungulate community. The phytophagous arthropod diversity on plants was twice as high on Kenyan Guinea grass than on Texan Guinea grass. Total arthropod family richness was nearly double, with 15 families represented in Kenya and 8 in Texas. These results suggest that Guinea grass has escaped a rich assemblage of arthropods and ungulates and likely explains some of its spread in introduced ranges. This study demonstrates how the invasive success of Guinea grass can be understood in terms of its competitive ability and interaction with natural enemies in the introduced and native ranges and may inform future biological control.

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Maze, KM, and MR Goodridge. "The effect of four broadleaf herbicides on seedlings of five native and one introduced grass species." Rangeland Journal 13, no. 2 (1991): 91. http://dx.doi.org/10.1071/rj9910091.

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The effect of four broadleaf herbicides (metsulfuron-methyl, bromoxynil + MCPA, chlorsulfuron and 2,4-D mine), on the growth of five native and one introduced grass species was tested on the seedling stage of each grass. The growth of Elymus scabrus, Chloris truncata and Eragrostis curvula was not affected by any of the herbicides used. Bromoxynil + MCPA appeared to be the least damaging of the herbicides on the growth of Bothriochloa macra, Danthonia caespitosa and Enteropogon ramosus, although the extent of damage caused varied between the species. Metsulfuron-methyl, chlorsulfuron and 2,4-D amine had detrimental effects on all three species. The variability of responses to broadleaf herbicides exhibited by the native grass species suggests that herbicide trials will be a necessary part of native grass domestication programs.

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McIvor, John G. "Pasture management in semiarid tropical woodlands: improving the herbage quality of stylos and grasses." Australian Journal of Experimental Agriculture 47, no. 11 (2007): 1359. http://dx.doi.org/10.1071/ea06291.

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The impacts of season and pasture management (tree killing, superphosphate application, stocking rate) on the herbage quality of stylos and grasses were measured at Hillgrove and Cardigan, north-east Queensland. Plucked samples of Verano, Seca and buffel grass (both sites) and a native grass (spear grass at Cardigan and desert blue grass at Hillgrove) were collected over a 4-year period and concentrations of nitrogen, phosphorus and sulfur and in vitro digestibility were measured. There were large seasonal variations in herbage quality of all species with high quality in the early growing season and low quality in dry periods. The stylos had higher nitrogen concentrations and in vitro digestibilities than the grasses, buffel grass had a higher phosphorus concentration than the other species and there were no consistent differences in sulfur concentration between species. Buffel grass generally had higher nitrogen and phosphorus concentrations and in vitro digestibility than the native grasses. Management had relatively minor impacts but where differences did occur, herbage quality was higher in plots with live trees than where trees were killed, on plots where superphosphate was applied compared with plots without fertiliser and was greater at high stocking rate. Oversowing native pastures with stylos had no effect on the herbage quality of desert blue grass which had similar quality in oversown pasture and native pasture.

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Hennessy, D. W., D. J. McLennan, P. J. Williamson, and S. G. Morris. "Changes in characteristics of pastures in the coastal subtropics when grazed by cattle during years of low rainfall." Australian Journal of Experimental Agriculture 38, no. 8 (1998): 813. http://dx.doi.org/10.1071/ea98078.

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Summary. The effect of continuous grazing on pasture composition and quality was assessed on 2 pasture types in a subtropical environment. The pastures were native stocked at 1 cow/2.5 ha, and previously improved stocked at 1 cow/1.6 ha. In August 1990, carpet grass (Axonopus affinus) was the major species in both the native (49.8%) and improved (61.3%) pastures. However, the proportion of carpet grass decreased during the study to 33% in the native pasture and 30% in the improved pasture in February 1994. In the native pasture, blady grass (Imperata cylindrica) increased at the expense of carpet grass, whereas in the improved pasture higher quality grasses, and to a lesser extent Giant Parramatta grass (Sporobolus indicus), increased at the expense of carpet grass. Overall, dry matter on offer and green dry matter depended on rainfall and these peaked in late summer. Dry matter on offer differed between non-drought and drought periods in both pastures and was ≤3500 kg/ha in drought months in the native pasture and ≥3500 kg/ha in comparable months in the improved pasture. Green dry matter was higher in pastures towards the end of the summer growing season (83%, March 1992) and lower during many of the drought months (12%, May 1991). Grazing pressure (liveweight 0.75/t green dry matter) was highest in August, the crucial period for weed incursion. Organic matter digestibility was highest following rain in late spring (November 1990; 69%, improved pasture) but lowest in the absence of rain (November 1993; 38%, native pasture). The proportion of green dry matter in the native pasture was not related to organic matter digestibility nor to the nitrogen content of plucked pasture samples. However, in the improved pasture the proportion of green dry matter was related to organic matter digestibility on 3 occasions but not to nitrogen content.

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Endress, Bryan A., Catherine G. Parks, Bridgett J. Naylor, Steven R. Radosevich, and Mark Porter. "Grassland Response to Herbicides and Seeding of Native Grasses 6 Years Posttreatment." Invasive Plant Science and Management 5, no. 3 (September 2012): 311–16. http://dx.doi.org/10.1614/ipsm-d-11-00050.1.

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AbstractHerbicides are the primary method used to control exotic, invasive plants. This study evaluated restoration efforts applied to grasslands dominated by an invasive plant, sulfur cinquefoil, 6 yr after treatments. Of the five herbicides we evaluated, picloram continued to provide the best control of sulfur cinquefoil over 6 yr. We found the timing of picloram applications to be important to the native forb community. Plots with picloram applied in the fall had greater native forb cover. However, without the addition of native perennial grass seeds, the sites became dominated by exotic grasses. Seeding resulted in a 20% decrease in exotic grass cover. Successful establishment of native perennial grasses was not apparent until 6 yr after seeding. Our study found integrating herbicide application and the addition of native grass seed to be an effective grassland restoration strategy, at least in the case where livestock are excluded.

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Mitchell, M. L., M. R. McCaskill, and R. D. Armstrong. "Phosphorus fertiliser management for pastures based on native grasses in south-eastern Australia." Crop and Pasture Science 70, no. 12 (2019): 1044. http://dx.doi.org/10.1071/cp19217.

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Approximately 3.1 Mha (22%) of the agricultural area of south-eastern Australia can be classified as native pasture. There is the assumption that, owing to the widespread occurrence of low-fertility soils in Australia, native grass species do not respond to increased phosphorus (P) fertility. Currently, there are no industry recommendations of target soil-test P values for native-grass-based pastures. This paper reviews the responses of perennial native pasture species endemic to south-eastern Australia to P application in controlled environments, surveys, replicated experiments and paired-paddock trials. Eighty-seven site-years of trial data where different levels of P were applied, conducted over the last two decades, on native-based pastures in south-eastern Australia are reviewed. Data indicate that application of P fertilisers to native grass pastures can increase dry matter (DM) production and maintain pasture stability. However, minimum targets for herbage mass (800 kg DM/ha) and groundcover (80%) are required to ensure persistence of perennial native grasses. Stocking rates also need to match carrying capacity of the pasture. Based on previous research, we recommend target soil-test (Olsen; 0–10 cm) P levels for fertility-tolerant native grass pastures, based on Microlaena stipoides, Rytidosperma caespitosum, R. fulvum, R. richardsonii, R. duttonianum and R. racemosum, of 10–13 mg/kg, whereas for pastures based on fertility-intolerant species such as Themeda triandra, lower levels of <6 mg/kg are required to ensure botanical stability.

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Davies, Kirk W., Aleta M. Nafus, and Roger L. Sheley. "Non-native competitive perennial grass impedes the spread of an invasive annual grass." Biological Invasions 12, no. 9 (February 6, 2010): 3187–94. http://dx.doi.org/10.1007/s10530-010-9710-2.

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Jia, Tong, Ruihong Wang, Xiaohui Fan, and Baofeng Chai. "A Comparative Study of Fungal Community Structure, Diversity and Richness between the Soil and the Phyllosphere of Native Grass Species in a Copper Tailings Dam in Shanxi Province, China." Applied Sciences 8, no. 8 (August 3, 2018): 1297. http://dx.doi.org/10.3390/app8081297.

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In the study area, mining processes have led to the accumulation of a large amount of ore sand and a tailings dam was established above this artificial overburden. After a long period of restoration, the area was reclaimed by a variety of native vegetation. This study investigated four of these native grass species, namely, Bothriochloa ischaemum, Imperata cylindrica, Elymus dahuricus and Calamagrostis epigejos, having reestablished themselves after the restoration of a copper tailings dam built in 1969 in Shanxi Province, China. We analyzed the fungal community structure in the soil and the phyllosphere of the four native grass species using high-throughput sequencing. Results showed that the soil of the tailings dam was weakly alkaline and copper (Cu) was the most pervasive element present. Ascomycota were the dominant fungal taxa in the soil and the phyllosphere of all four native grass species, for which total soil nitrogen (N) content was an influencing factor. Basidiomycota was positively correlated to cadmium (Cd), which can additionally be used as an indicator of Cd pollution in copper tailings dams. Among the four native grass species, Nectriaceae was the dominant fungal family found exclusively in B. ischaemum; Meruliaceae and Phaeosphaeriaceae were the dominant fungal families of E. dahuricus; Cordycipitaceae and Sporormiaceae were only found in C. epigejos. However, we found no evidence of a dominant fungal family in I. cylindrica. Furthermore, Erythrobasidiales sp., which had the highest betweenness centrality after network analysis, was identified as the key fungal species in all four native grass species.

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Felton, WL, GA Wicks, and SM Welsby. "A survey of fallow practices and weed floras in wheat stubble and grain sorghum in northern New South Wales." Australian Journal of Experimental Agriculture 34, no. 2 (1994): 229. http://dx.doi.org/10.1071/ea9940229.

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A survey undertaken in northern New South Wales after the 1989 wheat harvest investigated the effects of cultural practices used by dryland farmers on summer weed flora. Only 50% of fallow paddocks surveyed between December and February were weedfree, and by mid January 65% had inadequate stubble cover (<1000 kg/ha) for protection from soil erosion, mainly because of excessive tillage. By February, only 10% of paddocks were being sprayed with a herbicide to control weeds. Examination of 65 uncultivated fallow wheat stubble paddocks and 25 grain sorghum crops identified 87 and 51 different weed species, respectively. In fallow paddocks where no herbicide had been used, 69 and 61 species were found in ungrazed and grazed paddocks, respectively. Where glyphosate had been used the number of species was 37 (grazed) and 39 (ungrazed), and for glyphosate plus atrazine, 23 and 18 species. The number of weed species found in grain sorghum was 29 for cultivated without atrazine, 35 for cultivated with atrazine, and 35 for no-tillage with atrazine, The most important weeds found in fallow were liverseed grass, native millet, common sowthistle, wireweed, and barnyard grasses. Black bindweed was a problem where atrazine had not been used. Native millet was the most abundant species where atrazine had been applied. In grain sorghum the most common broadleaf weeds for cultivated paddocks with no atrazine treatment were Tribulus spp., Australian bindweed, pigweed, and Bathurst burr, while the most common grass weeds were barnyard grasses, liverseed grass, stinkgrass, and native millet. When cultivation plus atrazine was used, barnyard grasses, native millet, wild oats, and liverseed grass were the most common weeds. In minimum tillage or no-tillage paddocks treated with atrazine, native millet, Queensland blue grass, liverseed grass, common sowthistle, Australian bindweed, and windmill grass were the most common weeds.

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Iglay, Raymond B., Kristin B. Schwarz, Jerrold L. Belant, James A. Martin, Guiming Wang, and Travis L. DeVault. "Large Mammal Use of Seminatural Grasslands and Implications for Aviation Strike Risk." Journal of Fish and Wildlife Management 9, no. 1 (October 10, 2017): 222–27. http://dx.doi.org/10.3996/022017-jfwm-019.

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Abstract Large mammals pose a significant risk to U.S. aircraft safety within airport operation areas and cost airlines millions of dollars in repairs annually. Native warm-season grass polycultures and switchgrass monocultures offer alternative land covers for airports that could benefit current risk-mitigation efforts in addition to offering economic and environmental benefits. We compared use of a native warm-season grass polyculture and switchgrass Panicum virgatum monoculture by white-tailed deer (deer; Odocoileus virginianus) and coyote Canis latrans, using remote cameras in Mississippi, during 2011–2012. Coyotes and deer were observed 27% and 51% less in switchgrass monoculture than in native warm-season grass polyculture, respectively. However, November detections and cumulative hazard score demonstrated the greatest differences between treatments, especially for deer. Considering deer and coyotes are among the most hazardous mammal species to aircraft, switchgrass monocultures could be a better alternative land cover than native warm-season grass polycultures for some airport turf areas. Increased land coverage of switchgrass monocultures could benefit airport wildlife-hazard mitigation but needs validation by comparing alternative land covers to more traditional airport land covers.

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39

Jelantik, I. Gusti Ngurah, Wigberta N. Mano, and T. T. Nikolaus. "Effect of The Inclusion of Butterfly Pea (Clitoria ternatea) and Green Sea Weed (Ulva lactuca) in The Complete Feed on The Concentration of Blood Metabolites of Male Kacang Goats." Journal of Tropical Animal Science and Technology 4, no. 2 (August 9, 2022): 144–53. http://dx.doi.org/10.32938/jtast.v4i2.2524.

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This experiment aimed to investigate the effect of including Clitoria ternatea and Ulva lactuca in the complete feed on the concentration of blood metabolites of male kacang goats. Four male kacang goats were involved in this experiment arranged following a Latin Square Design with 4 treatments and 4 periods as replication. The treatments were R0= native grass hay 60%+concentrate 40%, R1= native grass hay 30%+concentrate 40%+ Clitoria ternatea 30%, R2= native grass hay 30%+concentrate 40%+ Clitoria ternatea 15%+ Ulva lactuca 15% and R3= native grass hay 30%+ concentrate 40%+Ulva lactuca 30%. Data were analyzed using analysis of variance (ANOVA) and followed by the Duncan Multiple Range Test when significant differences were found. The results showed that feeding a complete feed containing Clitoria ternatea and Ulva lactuca did not significantly (P>0,05) affect the concentration of urea, glucose and plasm total protein in the blood of male kacang goats. Therefore, it can be concluded the inclusion of Clitoria ternatea and Ulva lactuca has no effect on the concentration of blood metabolites in male kacang goats.

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CYMBALUK, N. F., J. D. MILLAR, and D. A. CHRISTENSEN. "OXALATE CONCENTRATION IN FEEDS AND ITS METABOLISM BY PONIES." Canadian Journal of Animal Science 66, no. 4 (December 1, 1986): 1107–16. http://dx.doi.org/10.4141/cjas86-121.

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Total oxalate and calcium determinations were made in 200 feed samples. Legume hays contained more oxalate than legume-grass, grass (including brome and timothy), native grass and cereal hays (P < 0.05). Grass, native and cereal hays contained low calcium and low to moderate oxalate concentrations. Based on molar ratios and the assumption of preferential binding of calcium by oxalate, it was estimated that about 25% of calcium in legume and legume-grass hays could be bound by oxalate. Similarly, oxalate might bind 38–44% of the calcium contained in native grass and cereal hays and would exacerbate the low calcium content of these hays. Only one hay, a kochia, had oxalate concentrations (3.2%) known to cause acute toxicity in livestock. Oxalate concentration was positively correlated to calcium concentration (r = 0.69). Chopped alfalfa, oat, brome, and slough hay and pelleted alfalfa, oat and barley hays were fed to ponies in two separate Latin square experiments. Apparent oxalate digestibilities were determined to be 48–88%. Cereal hays had the highest apparent oxalate digestibilities in both trials (73–88%) (P < 0.05). Key words: Oxalate, calcium, forages, ponies

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Loch, D. S., P. W. Johnston, T. A. Jensen, and G. L. Harvey. "Harvesting, processing, and marketing Australian native grass seeds." New Zealand Journal of Agricultural Research 39, no. 4 (December 1996): 591–99. http://dx.doi.org/10.1080/00288233.1996.9513218.

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Lym, Rodney G., Roger L. Becker, Michael J. Moechnig, Mary B. Halstvedt, and Vanelle F. Peterson. "Native Grass Establishment following Application of Pyridine Herbicides." Invasive Plant Science and Management 10, no. 01 (March 2017): 110–17. http://dx.doi.org/10.1017/inp.2017.6.

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Invasive species management is often more successful if desirable species are seeded after the target weed is controlled. However, control of invasive plants must be maintained following reseeding or the seeded species may fail to establish. A regional study conducted in Minnesota, North Dakota, and South Dakota evaluated the effect of aminopyralid, clopyralid, or picloram applied in the fall prior to fall-dormant seeding or seeding the following spring on cool- and warm-season native grass species establishment. Herbicides were applied at standard rates used to control invasive broadleaf weeds in the upper midwestern tallgrass prairie region of the United States. Cool-season species included Canada wildrye, green needlegrass, and intermediate wheatgrass. Warm-season species included big bluestem, little bluestem, sideoats grama, switchgrass, and Indiangrass. Aminopyralid did not reduce seedling establishment in either fall or spring seeding. Grasses generally were not affected by a pretreatment of the pyridine standards clopyralid or picloram either, with the exception of a slight reduction in fall-seeded establishment of intermediate wheatgrass. Picloram also slightly reduced fall-seeded establishment of Canada wildrye. Application of aminopyralid can safely be used to control susceptible invasive species preceding grass species establishment, with a safety margin similar to or slightly better than that with the pyridine standards clopyralid or picloram.

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McDonald, Walt. "Where Native Grass Grows Loud if We Listen." Missouri Review 20, no. 3 (1997): 42. http://dx.doi.org/10.1353/mis.1997.0065.

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Masu, Smaranda, Anca Andreea Marin, Benoni Lixandru, Dumitru Popescu, Valentin Ciulan, Florica Morariu, and Sorin Morariu. "Crude oil polluted soils phytoremediation with native grass." Journal of Biotechnology 185 (September 2014): S64. http://dx.doi.org/10.1016/j.jbiotec.2014.07.217.

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West, Andrew S., Patrick D. Keyser, Christopher M. Lituma, David A. Buehler, Roger D. Applegate, and John Morgan. "Grasslands bird occupancy of native warm-season grass." Journal of Wildlife Management 80, no. 6 (June 4, 2016): 1081–90. http://dx.doi.org/10.1002/jwmg.21103.

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Branford, Suzanne N., and Ian C. Duggan. "Grass carp (Ctenopharyngodon idella) translocations, including hitchhiker introductions, alter zooplankton communities in receiving ponds." Marine and Freshwater Research 68, no. 12 (2017): 2216. http://dx.doi.org/10.1071/mf17051.

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In the present study we tested the effects of translocations from aquaculture facilities of grass carp, one of the most commonly used species in aquaculture globally, to constructed ponds in the Auckland region, New Zealand. Primarily, we were interested in whether zooplankton assemblages in recipient ponds are affected by the concomitant introduction of ‘hitchhikers’ with fish releases. Zooplankton community composition was quantified in 34 ponds that had been subject to grass carp release and 31 that had no grass carp introductions. A significant difference in zooplankton community composition was observed between ponds that had received grass carp translocations and those that had not. Differences in community composition between ponds with and without carp releases could be attributed to both the: (1) effects of activity of grass carp through habitat modification; and (2) establishment of hitchhiking zooplankton species originating from aquaculture ponds, including non-native species. Effective measures to curb the proliferation of non-native taxa within aquaculture facilities, and to mitigate the accidental movement of non-native taxa with translocations from these facilities, are required to reduce future zooplankton introductions.

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Badgery, W. B., D. R. Kemp, D. L. Michalk, and W. McG King. "Studies of competition between Nassella trichotoma (Nees) Hack. ex Arechav. (serrated tussock) and native pastures. 2. Seedling responses." Australian Journal of Agricultural Research 59, no. 3 (2008): 237. http://dx.doi.org/10.1071/ar07113.

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Native perennial grass competition can substantially reduce the invasion of Nassella trichotoma (serrated tussock), a major perennial grass weed problem in south-eastern Australia. This paper reports on a field experiment that investigated the recruitment of N. trichotoma seedlings, and determined what level of native grass competition was needed to prevent establishment in the central-west of NSW. Grasslands that maintained >2 t dry matter (DM)/ha and 100% ground cover (measured in spring) prevented N. trichotoma seedling recruitment. Relatively small amounts of perennial grass (>0.5 t DM/ha measured in spring) resulted in mortality of N. trichotoma seedlings that had recruited earlier in the year, through the next summer. Flupropanate also markedly reduced native perennial grasses and substantially increased N. trichotoma seedling establishment 12 months after application. Rotational grazing to maintain adequate levels of DM was an important management tactic that prevented N. trichotoma establishment and survival.

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Mitich, Larry W. "The Devil's Grass: Quackgrass." Weed Technology 1, no. 2 (April 1987): 184–85. http://dx.doi.org/10.1017/s0890037x00029468.

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Quackgrass [Agropyron repens (L.) Beauv. #3 AGRRE] infests farms and gardens throughout the northern United States, southern Canada, almost all of Europe—its native home—and parts of Asia. It grows in Alaska, extends above the Arctic Circle in Norway, and plagues coffee plantations in New Guinea. While quackgrass occurs in every state in the United States, it is rarely a troublesome crop weed in the South.

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Du, Shuai, Sihan You, Jian Bao, Gentu Ge, Yushan Jia, and Yimin Cai. "Growth performance, carcass characteristics, and meat quality of Mongolian lambs fed native grass or hay with or without concentrate on the Inner Mongolian Plateau." Canadian Journal of Animal Science 100, no. 3 (September 1, 2020): 470–78. http://dx.doi.org/10.1139/cjas-2019-0126.

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The aim of this study was to evaluate the effects of native grass on growth performance, carcass characteristics, and meat quality of Mongolian lambs fed Inner Mongolia native grass in three forms: grass, hay, and hay with concentrate (HC). Sixty Mongolian noncastrated male lambs, in good health and with the same age (6 mo) and similar body weights (mean, 28.63 ± 0.19 kg), were randomly divided into three treatments. There were four replicates in each treatment, with five lambs in one pen as a replicate. Compared with the HC group, the intake of the grass group was higher (P < 0.05) and that of the hay group was lower (P < 0.05). The hay group had a gain of −58.67 g d−1, compared with 42.33 g d−1 for the HC group and 80.00 g d−1 for the grass group. The carcass weight, net meat mass, loin muscle area, and fat thickness (a measure of fat tissue thickness) were greater in the grass and HC groups than in the hay group (P < 0.05). Compared with the hay group, the protein and calcium contents, marbling score, and water loss rate were greater in the grass and HC groups (P < 0.05), whereas the fat, phosphorus, cholesterol contents, and b* score were lower for the latter groups (P < 0.05). These results suggest that feeding of native grass hay with concentrate could improve the growth performance and meat quality of Mongolian lambs and achieve results similar to those observed in grass-fed lambs.

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Hovenden, Mark J., and Dennis I. Morris. "Occurrence and distribution of native and introduced C4 grasses in Tasmania." Australian Journal of Botany 50, no. 6 (2002): 667. http://dx.doi.org/10.1071/bt01093.

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Abstract:

Of the 137 species of grass considered native to Tasmania, only eight use the C4 photosynthetic pathway. There are also approximately 137 grass species considered as introduced to Tasmania and 21% of these are C4. In total, there are 41 species from 20 genera of C4 grass recorded from Tasmania. Many of the introduced C4 species have a very limited distribution, however, and are generally confined to urban areas and along roadsides. Overall, Tasmania has fewer C4 grasses than would be expected from climate alone and few of the C4 grass species are widely distributed or abundant. However, the proportion of grasses recorded from Tasmania that use the C4 pathway has been increasing for the past century and is still increasing. General distribution and habitat notes are provided for all C4 grasses known to be native or naturalised in Tasmania.

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Journal articles on the topic 'Native grass'

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