turfgrass cultivars. In this repeated study, ‘Argentine’ bahiagrass ( Paspalum notatum Flugge), ‘Floratam’ st. augustinegrass [ Stenotaphrum secundatum (Walt.) Kuntze], and ‘Empire’ zoysiagrass ( Zoysia japonica Steud.) were examined for drought stress
entries being ‘El Toro’ Japanese lawngrass ( Zoysia japonica ) and ‘Riley’s Super Sport’ bermudagrass, which were chosen as industry standard warm-season turfgrasses for moderately shaded lawns in Oklahoma. The soil at the Perkins site was a fine loamy
cultivars of st. augustinegrass ( Stenotaphrum secundatum sp.) (‘Amerishade’, ‘Common’, ‘Delmar’, ‘Floratam’, ‘Palmetto’, ‘Raleigh’, and ‘Sapphire’); and nine cultivars of zoysiagrass ( Zoysia japonica Steud.) (‘El Toro’, ‘Emerald’, ‘Empire’, ‘Jamur’, and
. No. 45. Amer. Soc. Agron., Crop Sci. Soc. Amer., Soil Sci. Soc. Amer. Madison, WI Huang, B. 1999 Water relations and root activities of Buchloe dactyloides and Zoysia japonica in response to localized soil drying Plant Soil 208 179 186 Huang, B
environments. Therefore, the objectives of the current study were to evaluate the effects of N fertilization and light environment on relations among growth, carbon assimilation, water use, and WUE of two coarse-textured Zoysia japonica Steud. genotypes
were included in this study: four cool-season grasses, ‘Stonewall’ tall fescue ( Festuca arundinacea Schreb.) (TF), ‘L-93’ CB, ‘Kenblue’ KB, and ‘Zoom’ PR, and two warm-season grasses, ‘Zenith’ zoysiagrass ( Zoysia japonica Steud.) (ZOY) and ‘Riviera
, while rates for cool-season turfgrasses typically range between 4 and 13 mm·d −1 ( Kenna, 2008 ). In Texas, tall fescue can use up to 47% more water than zoysiagrass [ Zoysia japonica ( Kim, 1983 )]. Transitioning from cool-season to warm-season turf
use in the study: ‘Riley’s Super Sport’ (Celebration ® ) bermudagrass [ Cynodon dactylon (L.) Pers.], ‘Palisades’ zoysiagrass ( Zoysia japonica Steud.), ‘Floratam’ st. augustinegrass [ Stenotaphrum secundatum (Walt.) Kuntze], and ‘SeaStar’ seashore
Three genetically diverse Kentucky bluegrasses (Poa pratensis L. cvs. Kenblue, Vantage, and Adelphi) and 6 other turfgrasses were evaluated for susceptibility to the greenbug, Schizaphis graminum Rondani. Nine common lawn weed species were also tested as potential alternative hosts. Heavy greenbug populations and feeding damage occurred on all 3 bluegrasses and on tall fescue (Festuca arundinacea Schreb. cv. Kentucky 31) and chewings fescue (Festuca rubra var. cummutata Guad. cv. Jamestown). Creeping bentgrass (Agrostis palustris Huds. cv. Penncross), bermudagrass (Cynodon dactylon L. cv. Midiron), perennial ryegrass (Lolium perenne L. cv. Derby), and zoysia grass (Zoysia japonica Steud. cv. Meyer) were not suitable hosts. No greenbugs survived on the 9 weed species tested.
Water requirements for `Meyer' zoysiagrass (Zoysia japonica Steud., hereafter referred to as zoysia), `Midlawn' bermudagrass [Cynodon dactylon (L.) Pers. × C. transvaalensis Burtt-Davy, hereafter referred to as bermuda], `Falcon II' tall fescue (Festuca arundinacea Schreb.) and `Brilliant' kentucky bluegrass (Poa pratensis L., hereafter referred to as bluegrass) were evaluated under a mobile rainout shelter at deficit irrigation levels of 20% to 100% of actual evapotranspiration (ETa), applied twice weekly, between June and September 2001 and 2002. Soil was a river-deposited silt loam (fine, montmorillonitic, mesic Aquic Arquidolls). Minimum annual irrigation amounts required to maintain quality ranged from 244 mm for bermuda to 552 mm for bluegrass. Turfgrass species and respective irrigation levels (% of ETa) at which season-long acceptable turf quality was maintained in each year were bluegrass, 100% (evaluated 2001 only); tall fescue, 60% in 2001 and 80% in 2002; bermuda, 60% in both years; and zoysia, 80% in both years. A landscape manager who could tolerate one week of less-than-acceptable quality could have irrigated tall fescue at 40% ETa (224 mm) in 2001 and 60% ETa (359 mm) in 2002. Likewise, bermuda exhibited unacceptable quality on only one September rating date when irrigated at 40% ETa (163 mm) in 2001. Bermuda was able to tolerate a lower leaf relative water content (LRWC) and higher level of leaf electrolyte leakage (EL) compared to other grasses before quality declined to an unacceptable level.