) induced by gamma irradiation exhibited considerable growth retardation ( Busey, 1980 ). Dwarf-type cultivars of bermudagrass ( Cynodon dactylon ) and triploid bermudagrass ( Cynodon transvaalensis × C. dactylon ) like TifEagle, Tift 94, and Tifway II
Abstract
Commercial microorganism inoculum was tested for effectiveness in aiding thatch breakdown in common bermudagrass (Cynodon dactylon (L.) Pers.) turf on two golf courses in Hawaii. None of the materials tested were effective in reducing thatch accumulation over a 5-month test period.
Cynodon dactylon (L.) Pers. from the Salt Range (Pakistan) to salinity stress Flora Morphol. Distrib. Functional Ecol. Plants 203 683 694 Hasegawa, P.M. Bressan, R.A. Zhu, J.-K. Bohnert, H.J. 2000 Plant cellular and molecular responses to high salinity
Harlan, J.R. De Wet, J.M.J. 1969 Sources of variation in Cynodon dactylon (L) Pers. Crop Sci. 9 774 778 Karcher, D.E. Richardson, M.D. 2005 Batch analysis of digital images to evaluate turfgrass characteristics Crop Sci. 45 1536 1539 Koch, M.J. Bonos, S
bulbs can persist in zoysiagrass ( Zoysia japonica Steud.) and bermudagrass ( Cynodon dactylon ) in transition zone environments, providing color and biodiversity to dormant turfgrass situations. However, both studies examined a small number of bulb
Abstract
Glyphosate, fluazifop, sethoxydim, haloxyfop, and quizalofop were applied to bermudagrass [Cynodon dactylon (L.) Pers.] and johnsongrass [Sorghum halepense (L.) Pers.] in a ‘Concord’ (Vitis labrusca L.) vineyard in 1985 and 1986. Spray was allowed to contact the grape foliage in all treatments except the glyphosate treatment. Two-year usage of these herbicides controlled johnsongrass and bermudagrass and caused no grape injury. Chemical names used: N-(phosphonomethyl) glycine (glyphosate); (±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid (fluazifop); 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one (sethoxydim); 2-[4[[3-chloro-5-(trifluoro-methyl)-2-pyridinyl]oxy]phenoxy]propanoic acid (haloxyfop); 2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenyoxy]propanoic acid (quizalofop).
Abstract
Carbohydrate content varied among cultivars of bermudagrass (Cynodon dactylon L.) at 3 sampling dates during dormancy and greenup. Sucrose and starch decreased in rhizomes between March and May while reducing sugars remained constant. Concentration of stored carbohydrate was correlated positively with the number of rhizomes near the soil surface during winter and early spring. Spring deadspot injury ranged from 60% of the plot area for ‘KSU, (Kansas State University) T-5, to zero for ‘Royal Cape’, ‘Mich. C-53’, ‘Midway’ and ‘KSU D-17.’ Earliest to greenup in spring was ‘KSU T-3’ while ‘KSU T-5’, ‘F-4’, ‘Md. 23’, ‘24’ and ‘U-3’ were only 13-33% green on the same date. Injury was less severe where cultivars utilized carbohydrate and greened early in the spring. Early greenup was associated with thinner layers of thatch. There was no association between thickness or number of rhizomes and spring deadspot.
Abstract
Turfgrass quality usually is related to fertilization management practices. Nitrogen fertilizer formulations are undergoing change in order to produce acceptable turfgrass response and reduce management costs. Field experiments conducted during 1979–81 evaluated the influence of Ca on urea and nitrate N sources on bermudagrass (Cynodon dactylon L.) turfgrass color, quality, verdure, and root-rhizome dry matter production. Color, quality, and verdure were significantly improved and persisted longer with the addition of Ca to urea N sources. Early season root and rhizome production also was increased with the urea + calcium application. Verdure was not significantly affected among the N sources. There was not a significant increase in tissue N content. Addition of Ca to the fertilizer formulation apparently enhanced N utilization.
Abstract
Diclofop (2-(4-(2,4-dichlorophenoxy)phenoxy)propanoic acid) caused little to no injury to common bermudagrass [Cynodon dactylon (L.) Pers.] mowed twice weekly at 1.6-2.0 cm at rates of 0.56,1.12, 2.24, and 4.48 kg/ha or to ‘Tifdwarf’ bermadagrass Cyndon dactylon × C. transvaalensis Burtt-Davey, mowed daily at 0.5 cm at rates of 0.56, 1.12, and 2.24 kg/ha. Diclofop at 0.56, 1.12, and 2.24 kg/ha gave good control of mature goosegrass [Eleusine indica (L.) Gaertn.] in ‘TifdwarP turf mowed daily at 0.5 cm, but resulted in inadequate control at 4.48 kg/ha in common bermudagrass turf mowed twice weekly at 1.6 or 2.0 cm.
Abstract
A ‘Tifway’ bermudagrass [Cynodon dactylon (L.) Pers. × C. transvaalensis Burtt-Davy] green-overseeded with ‘Medalist VI’ perennial ryegrass [Lolium perenne (L.)] was treated with variable rates and frequencies of 26% (flowable) tricalcium arsenate. Ryegrass was severely injured when tricalcium arsenate was applied in mid to late fall, after it had fully germinated. Injury to ryegrass was not as severe when applied prior to or during germination. Timing of chemical application had more effect on injury than rate of application.