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Articles 1 - 11 of 11
Full-Text Articles in Life Sciences
Evaluating Small Unmanned Aerial Systems For Detecting Drought Stress On Turfgrass, Mu Hong, Dale Bremer, Deon Van Der Merwe
Evaluating Small Unmanned Aerial Systems For Detecting Drought Stress On Turfgrass, Mu Hong, Dale Bremer, Deon Van Der Merwe
Kansas Agricultural Experiment Station Research Reports
This study was conducted to evaluate early detection ability of small unmanned aerial systems (sUAS) technology for drought stress on turfgrass. Certain reflectances collected by sUAS and a handheld device declined more in less irrigated treatments before drought stress was evident in visual quality rating (VQ) and percentage green cover (PGC). The near infrared (NIR) band and GreenBlue vegetation index performed the best consistently for drought stress prediction among the other vegetation indices (VI) or bands from sUAS. Results indicate using ultra-high resolution remote sensing with sUAS can detect drought stress as well as, if not better than, a handheld …
Urban Lawn Microclimates Affect Reference Evapotranspiration, Kenton W. Peterson, Dale J. Bremer, Jack D. Fry
Urban Lawn Microclimates Affect Reference Evapotranspiration, Kenton W. Peterson, Dale J. Bremer, Jack D. Fry
Kansas Agricultural Experiment Station Research Reports
Grass reference evapotranspiration (ETo) obtained from weather stations in open locations is often used to estimate irrigation requirements of turfgrass in local or regional urban lawns. However, the environments of urban lawns are often altered by surrounding buildings, trees, etc., to form various microclimates that may alter evapotranspiration (ET). Our research, which placed weather stations in urban lawns and nearby open swards of turfgrass, revealed ETowas 41% lower in residential lawn microclimates than in nearby open turfgrass swards. Less ET within urban lawns than in nearby open swards suggests using standard historical weather data to estimate …
Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack D. Fry, Megan M. Kennelly
Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack D. Fry, Megan M. Kennelly
Kansas Agricultural Experiment Station Research Reports
AZoysia japonicagenotype, TAES 5645, that exhibited partial resistance to large patch in preliminary studies conducted by our collaborators at Texas A&M University, was used as a breeding parent at Texas A&M and crossed with 22 cold hardy zoysiagrasses, resulting in 2,858 progeny. These progeny were evaluated for cold hardiness and agronomic traits (establishment rate, overall quality, spring green up, 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. …
2012 National Turfgrass Evaluation Program Tall Fescue Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Megan M. Kennelly, Jason J. Griffin, Jared A. Hoyle
2012 National Turfgrass Evaluation Program Tall Fescue Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Megan M. Kennelly, Jason J. Griffin, Jared A. Hoyle
Kansas Agricultural Experiment Station Research Reports
Research efforts to improve cultivar quality include selecting for disease resistance and stress tolerance 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 2017 growing season.
Extent Of Larval Populations Of Turfgrass Insect Pests At Rocky Ford Turfgrass Research Center At Manhattan, Ks, Raymond A. Cloyd
Extent Of Larval Populations Of Turfgrass Insect Pests At Rocky Ford Turfgrass Research Center At Manhattan, Ks, Raymond A. Cloyd
Kansas Agricultural Experiment Station Research Reports
Many insect pests have a larval or grub stage that resides belowground and feeds on turfgrass roots (Potter, 1998; Vittum et al., 1999; Held and Potter, 2012). The major belowground insect pests (white grubs) associated with turfgrass throughout Midwestern states that are present in Kansas include: May/June beetles (Phyllophagaspp), masked chafers (Cyclocephalaspp), and bluegrass billbug (Sphenophorus parvulus) (Miller et al., 2013). However, there is limited information on the annual occurrence of these insect pests affiliated with the common turfgrass species planted in Kansas, including zoysiagrass (Zoysia japonica) and Kentucky bluegrass (Poa …
Herbicide And Application Timing Effects On Windmillgrass Control, Nicholas Mitchell, Jared Hoyle
Herbicide And Application Timing Effects On Windmillgrass Control, Nicholas Mitchell, Jared Hoyle
Kansas Agricultural Experiment Station Research Reports
Windmillgrass (Chloris verticillataNutt.) populations commonly infest turfgrass systems in the midwest, which result in aesthetically unacceptable turfgrass stands. Research trials were initiated in 2017 in Onaga and Junction City, KS, to determine windmillgrass control with various single herbicide applications at multiple application timings (spring, summer, and fall). Data collection for research trials consisted of visual percent windmillgrass cover (0–100%), line intersect analysis on four-inch spacing, normalized difference vegetation index (NDVI) (0 to 1 scale), and windmillgrass seedhead counts. Initial observations resulted in greater windmillgrass control with summer applications compared to fall applications. Pylex (topramezome) resulted in 80% windmillgrass …
Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, Jack D. Fry, Megan M. Kennelly
Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, Jack D. Fry, Megan 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, and 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 …
Brown Patch Occurrence In A Zoysiagrass-Tall Fescue Polystand Compared To A Tall Fescue Monostand, Mingying Xiang, Jack D. Fry, Megan M. Kennelly
Brown Patch Occurrence In A Zoysiagrass-Tall Fescue Polystand Compared To A Tall Fescue Monostand, Mingying Xiang, Jack D. Fry, Megan M. Kennelly
Kansas Agricultural Experiment Station Research Reports
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 byRhizoctoniasolanior 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 and 2017, when …
2013 National Turfgrass Evaluation Program Bermudagrass Test: 2013–2017 Summary Report, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. Hoyle
2013 National Turfgrass Evaluation Program Bermudagrass Test: 2013–2017 Summary Report, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. 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.
2012 National Turfgrass Evaluation Program Tall Fescue Test: 2012–2017 Summary Report, Linda R. Parsons, Michael J. Shelton, Megan M. Kennelly, Jason J. Griffin, Jared A. Hoyle
2012 National Turfgrass Evaluation Program Tall Fescue Test: 2012–2017 Summary Report, Linda R. Parsons, Michael J. Shelton, Megan M. Kennelly, Jason J. Griffin, Jared A. Hoyle
Kansas Agricultural Experiment Station Research Reports
Research efforts to improve cultivar quality include selecting for disease resistance and stress tolerance 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 throughout the course of the study.
2013 National Turfgrass Evaluation Program Bermudagrass Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. Hoyle
2013 National Turfgrass Evaluation Program Bermudagrass Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. 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.