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Articles 1 - 15 of 15
Full-Text Articles in Life Sciences
The Effect Of Human Insect Repellents On Perennial Ryegrass (Lolium Perenne) Growth And Recovery, J. Hoyle, Peyton E. South
The Effect Of Human Insect Repellents On Perennial Ryegrass (Lolium Perenne) Growth And Recovery, J. Hoyle, Peyton E. South
Kansas Agricultural Experiment Station Research Reports
Turfgrass damage has been observed from misapplications of human insect repellents. Minimal research has been conducted to determine the cause of the damage. Greenhouse research trials were initiated in November 2016 to survey various human insect repellents on turfgrass growth and recovery. Insect repellents resulted in a wide range of damage. No common trend was observed, although the research trial shows possible repellents to be used around turfgrass that will minimize turfgrass injury.
Effect Of Dormant ‘Midiron’ Bermudagrass Colorant Applications On Clothing Blemishing, J. Hoyle, Daniele L. Mcfadden
Effect Of Dormant ‘Midiron’ Bermudagrass Colorant Applications On Clothing Blemishing, J. Hoyle, Daniele L. Mcfadden
Kansas Agricultural Experiment Station Research Reports
Minimal research exists on potential clothing blemishing when athletes contact turfgrass applied with colorants. Field trials were initiated February 16, 2017, and conducted to test the effect of turfgrass colorant applications on clothing blemishing if an athlete is to come in contact with the playing surface. Turfgrass colorants will adhere to turfgrass leaf blades and do not blemish clothing. However, tested turfgrass pigments did result in significant blemishing of clothing.
Influence Of Tall Fescue Baseball Infield Mowing Height On Ground Ball Speed, J. Hoyle, Gage M. Knudson
Influence Of Tall Fescue Baseball Infield Mowing Height On Ground Ball Speed, J. Hoyle, Gage M. Knudson
Kansas Agricultural Experiment Station Research Reports
Athletic field conditions have been shown to influence playability. Results of ball-roll speed studies can be used to predict success of infield hits. Field trials were conducted at Rocky Ford Turfgrass Research Center, Manhattan, KS, to determine the influence of tall fescue baseball infield mowing height on ground ball speed and batter on-base success. Mowing heights of 1, 2, and 3 inches resulted in 1.77, 2.08, and 1.88 s ground ball times, respectively.
Native Turfgrass Tolerance To Indaziflam Applications, J. Hoyle
Native Turfgrass Tolerance To Indaziflam Applications, J. Hoyle
Kansas Agricultural Experiment Station Research Reports
Multiple research trials were conducted from 2014 to 2016 in the Manhattan, KS, area to determine the use of indaziflam in native turfgrass systems. Results indicated that evaluated species are tolerant to indaziflam applications throughout the year.
Response Of Seven Woody Ornamentals To Turfgrass Herbicide Applications Of Arylex, Penoxsulam, And Pyrimisulfan, J. Hoyle
Kansas Agricultural Experiment Station Research Reports
Continued testing of turf-applied herbicides are being conducted to ensure off-target plant injury does not occur in the landscape. Results indicate high herbicide safety on select landscape ornamentals with new herbicides used to manage weeds in turf.
Use Of Pyrimisulfan And Penoxsulam In Turfgrass Systems, J. Hoyle
Use Of Pyrimisulfan And Penoxsulam In Turfgrass Systems, J. Hoyle
Kansas Agricultural Experiment Station Research Reports
Pyrimisulfan + penoxsulam applications in ‘Meyer’ zoysiagrass and buffalograss resulted in excellent large crabgrass control and no turfgrass injury. Applications also do not have any negative influence on tested ornamental species.
Estimating Transpiration From Turfgrass Using Stomatal Conductance Values Derived From Infrared Thermometry, Kenton W. Peterson, D. Bremer, J. M. Blonquist Jr.
Estimating Transpiration From Turfgrass Using Stomatal Conductance Values Derived From Infrared Thermometry, Kenton W. Peterson, D. Bremer, J. M. Blonquist Jr.
Kansas Agricultural Experiment Station Research Reports
Infrared thermometry provides accurate measurements of plant canopy temperature, which, along with basic weather variables, allows estimation of canopy stomatal conductance to water vapor flux (gc) and transpiration. Using this method we compared modeled estimates of transpiration (CONDT) with evapotranspiration (ET) measurements from nearby microlysimeters (LYSET) in tall fescue (Schedonorus arundinaceusSchreb.) turfgrass. Results indicated transpiration may be reliably estimated via calculation of gcin turfgrass.
Measurement Of Evapotranspiration In Turfgrass: Recommended Techniques And Adjustment Coefficients, Kenton W. Peterson, D. Bremer, Kira B. Shonkwiler, J. M. Ham
Measurement Of Evapotranspiration In Turfgrass: Recommended Techniques And Adjustment Coefficients, Kenton W. Peterson, D. Bremer, Kira B. Shonkwiler, J. M. Ham
Kansas Agricultural Experiment Station Research Reports
Evapotranspiration (ET) from turfgrass can be measured directly using lysimeters (LYS), estimated from weather data using models, or approximated using atmometers. Evapotranspiration measurements from LYS were compared with ET estimates from four variations of the American Society of Civil Engineers (ASCE) standardized ET equation including the use of: 1) hourly steps of measured net radiation (Rn) (ASCEHM); 2) hourly steps of Rncalculated from global irradiance (ASCEHC); 3) daily steps of measured Rn(ASCEDM); and 4) daily steps of Rncalculated from global irradiance (ASCEDC); ET from …
Performance And Recovery Of Turfgrasses Subjected To Drought And Traffic Stresses, R. Braun, D. Bremer, J. Hoyle, N. Bloedow
Performance And Recovery Of Turfgrasses Subjected To Drought And Traffic Stresses, R. Braun, D. Bremer, J. Hoyle, N. Bloedow
Kansas Agricultural Experiment Station Research Reports
This study is an effort to determine effects of drought and traffic in turfgrasses. During a 41-day summer drought in 2015 and 2016, warm-season (C4) grasses were more affected by traffic than cool-season (C3) grasses when percent green cover and turf quality were measured. This was because the non-trafficked plots in C4 grasses maintained higher percent green cover and turf quality throughout the drought due to better drought-stress tolerance than the C3 grasses. Regardless of traffic treatment or mowing height, C4 grasses maintained higher percent green cover and visual turf quality than C3 grasses during drought and recovery periods. There …
Nitrous Oxide Emissions And Carbon Sequestration In Turfgrass: Effects Of Irrigation And Nitrogen Fertilization (Year 2), R. Braun, D. Bremer
Nitrous Oxide Emissions And Carbon Sequestration In Turfgrass: Effects Of Irrigation And Nitrogen Fertilization (Year 2), R. Braun, D. Bremer
Kansas Agricultural Experiment Station Research Reports
This study was conducted from 2013–2016 to determine how irrigation and N fertilization may be managed to reduce N2O emissions and enhance carbon sequestration. In this study, annual nitrous oxide (N2O) emissions were greatest in urea and the least in unfertilized (no N) among treatments. During summer, the lower irrigation treatment resulted in less N2O emitted. All fertilizer and irrigation treatments maintained acceptable quality and high levels of percent green cover; however, the controlled-release fertilizer resulted in more consistent turf quality and green cover compared to urea and unfertilized. Urea fertilizer had higher peak …
Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, J. Fry, M. Kennelly
Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, J. Fry, M. Kennelly
Kansas Agricultural Experiment Station Research Reports
Water conservation is increasingly important when selecting turfgrasses. Zoysiagrass (Zoysia japonica), a C4 grass, is more drought resistant than C3 grasses. However, there is some resistance to the use of zoysiagrass in lawns and golf courses due to its extended dormant period when turf is brown. The objective of this study was to evaluate mowing height, tall fescue seeding rate and time for establishment of a mixed stand with seeded zoysiagrass. Seeding zoysiagrass and tall fescue together in June generally resulted in a less uniform mixture than seeding zoysiagrass in June and then seeding tall fescue in September. …
Impact Of Zoysiagrass And Tall Fescue Seed Mixtures On Brown Patch Severity, Mingying Xiang, J. Fry, M. Kennelly
Impact Of Zoysiagrass And Tall Fescue Seed Mixtures On Brown Patch Severity, Mingying Xiang, J. Fry, M. Kennelly
Kansas Agricultural Experiment Station Research Reports
Earlier research has demonstrated that polystands of zoysiagrass and tall fescue can be established successfully, with the potential to provide a high-quality turfgrass stand with reduced inputs. Our objective was to determine whether mixing zoysiagrass with tall fescue will reduce brown patch severity while maintaining overall acceptable quality. Studies were established at the Rocky Ford Turfgrass Research Center in Manhattan, KS. In the split-plot design, natural infection byRhizoctonia solanior a fungicide-treated control was the whole-plot treatment factor and species (tall fescue monostand and the zoysiagrass/tall fescue mixture) were subplots. During July and August 2016, when hot, humid weather …
Development Of Cold Hardy, Large Patch Resistant Zoysiagrass Cultivars For The Transition Zone, Mingying Xiang, J. Fry, M. Kennelly
Development Of Cold Hardy, Large Patch Resistant Zoysiagrass Cultivars For The Transition Zone, Mingying Xiang, J. Fry, M. Kennelly
Kansas Agricultural Experiment Station Research Reports
AZ. japonicagenotype TAES 5645 which exhibited resistance to large patch in preliminary studies conducted by our collaborators at Texas A&M University was used as a breeding parent there and crossed with 22 cold hardy zoysiagrasses, resulting in 985 progeny. These progeny were evaluated for cold hardiness and agronomic traits (establishment rate, overall quality, spring greenup, leaf texture, and genetic color) in Manhattan, KS; West Lafayette, IN; and Dallas, TX; from 2012 to 2014. This report focuses on the Manhattan, KS, results. From this work, 60 progeny were identified for further evaluation in larger plots. In fall 2016, ‘Meyer’ …
2012 National Turfgrass Evaluation Program Tall Fescue Test: 2016 Data, L. Parsons, Michael J. Shelton, M. Kennelly, J. Griffin, J. Hoyle
2012 National Turfgrass Evaluation Program Tall Fescue Test: 2016 Data, L. Parsons, Michael J. Shelton, M. Kennelly, J. Griffin, J. Hoyle
Kansas Agricultural Experiment Station Research Reports
Research efforts to improve cultivar quality include selecting for stress tolerance and disease resistance as well as finer leaf texture, a rich green color, and better sward density. Several cultivars included in the 2012 National Turfgrass Evaluation Program Tall Fescue Test performed well and showed good brown patch resistance in south central Kansas during the 2016 growing season.
2013 National Turfgrass Evaluation Program Bermudagrass Test: 2016 Data, L. Parsons, Michael J. Shelton, J. Griffin, J. Hoyle
2013 National Turfgrass Evaluation Program Bermudagrass Test: 2016 Data, L. Parsons, Michael J. Shelton, J. Griffin, J. Hoyle
Kansas Agricultural Experiment Station Research Reports
Kansas represents the northernmost region in the central United States where bermudagrass can be successfully grown as a perennial turfgrass. Historically, few cultivars that have both acceptable quality and adequate cold tolerance have been available to local growers. Because new introductions are continually being selected for improved hardiness and quality, both seeded and vegetative types need regular evaluation to determine their long-range suitability for use in Kansas.