Download or read book The Effect of Brushing on Creeping Bentgrass Putting Green Quality written by Chenchen Gu and published by . This book was released on 2016 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brushing is a daily practice method for golf course turfgrass maintenance which is done to stand the turfgrass plant prior to being cut. Creeping bentgrass (Agrostis stolonifera L.) is the primary turfgrass species used on golf course putting greens in temperate regions, but it has a prostrate growth habit. Brushing promotes vertically oriented leaf tissue, which helps the plant tolerate lower mowing heights. Vertical growth promotes higher shoot density, which helps reduce the competitive ability of some weeds. However, different frequency of brushing could lead to variation in the structure of the turfgrass leaves. The mechanical or abrasive nature of brushing potentially can cause physiological injury to the turfgrass plant. The objectives of this research are to evaluate the variation of the green speed as well as to quantify the fluctuations in physiological benefits or stress and to investigate the morphological changes due to brushing creeping bentgrass putting greens throughout the growing season. The two-year experiment was conducted on a standard `Penncross’ creeping bentgrass putting green on native soil located at the Ohio Turfgrass Foundation Research and Education Facility. For the first three months of the first year, the treatments consisted of two different brushing frequencies, brushing once a week and brushing three times a week with brushing unit set at 2.54 mm, compared to an untreated control. However, there wert no significant differences among those treatments. Therefore we adjusted our treatments to brushing three times a week or brushing five times a week with brushing unit set at 0.00 mm and continued the treatments in the second year of research. We found improvement in turf leaf texture and faster green speed with brushing while the variation of photochemical efficiency was not significant until the maximum temperature got lower than 15°C. In 2014 we observed a thinner leaf blade that appeared to have less leaf moisture in the brushed treatment compared to the untreated control. In 2015 we had four treatment which consisted double cut, double cut with brushing three times a week, double cut with brushing five times a week and untreated control which was single cut. We found increased green speed with all brushing treatments and a significant reduction in the amount of cuticle wax where double cutting had the greatest effect (P=0.05) while no physiological stress was indicated by measuring photochemical efficiency.

Download or read book Factors Affecting Creeping Bentgrass Quality of Three Different Putting Green Construction Methods written by John Andrew Hardy and published by . This book was released on 1999 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Root Zone Amendment Effects on the Quality and Nutritional Status of Creeping Bentgrass Putting Greens written by Christopher Lee Kerkman and published by . This book was released on 1996 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Cultural Practices on Creeping Bentgrass Putting Green Quality Disease Incidence and Organic Matter Dynamics written by Mark Adam Brotherton and published by . This book was released on 2011 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Four Creeping Bentgrass Cultivars and Quantified Foot Traffic on the Invasion of Annual Bluegrass Into a Putting Green written by Aaron D. Hathaway and published by . This book was released on 2006 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of ET Irrigation Mowing and Wetting Agent on a Putting Green written by Rodney Tocco and published by LAP Lambert Academic Publishing. This book was released on 2015-08-12 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for optimum Agrostis stolonifera var. palustris (creeping bentgrass) putting greens requires golf courses' to manage inputs closely. Challenges include low mowing heights, heat stress, traffic, and viable irrigation sources to manage creeping bentgrass. A factorial field experiment was designed on a Crenshaw putting green during the summers of 2010-2012 in East Lansing, MI comparing irrigation and mowing frequencies with and without a wetting agent. Daily irrigation replenishment of 30, 60, and 90% evapotranspiration (ET) measurements were compared for irrigation use efficacy while maintaining quality playing conditions and turfgrass health. Daily single and double mowing frequencies were compared for long-term aesthetics, pest populations, and playability when mowed at 0.3175 cm (0.125 in). Monthly applications of a wetting agent (Revolution(r)) were compared to untreated plots. Playability and overall aesthetics were characterized by weekly measurements of ball roll distance, percent volumetric water content (%VWC), and visual quality ratings (1-9). Annual soil measurements included water drop penetration (WDP) test and total microbial biomass (TMB).

Download or read book Physiological Effects of Low Mowing Heights Rolling and Foot Traffic on Creeping Bentgrass Putting Greens written by Joseph Ronald Young and published by . This book was released on 2013 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Golf course superintendents are managing creeping bentgrass ( Agrostis stolonifera L.) putting greens throughout the transition zone where temperatures can exceed optimum levels for consecutive days in the summer. The stress of creeping bentgrass associated with these supraoptimal temperatures has been well documented, but the management practices implemented on putting greens to increase green speeds may exacerbate these environmental stresses. To date, the physiological effects of these management practices in combination have not been evaluated for putting green turf. The objective of this dissertation project was to determine the effect of mowing heights, light-weight rolling, and foot traffic on performance and physiological parameters of 'SR 1020' and 'Penn G2' creeping bentgrass. Both above and below ground performance characteristics were evaluated in this project including: wear tolerance, turf quality, turf coverage, turf color, rooting characteristics, ball roll distance, ball mark severity, and ball mark recovery. Physiological data were collected with a custom photosynthesis chamber, and carbohydrate analysis was performed for all mowing and rolling treatments. Individual carbohydrates (total ethanol soluble sugars, glucose, sucrose, fructans, and average degree of polymerization) were determined for foliage, crown, and root material of each sample. Both performance characteristics and physiological parameters reached poorest levels in July or August each year as environmental stresses increased. Plots maintained at higher mowing heights and reduced rolling frequencies maintained better wear tolerance, turf quality, coverage, and color compared to lower mowing heights with frequent rolling. Net photosynthesis increased slightly as mowing heights were increased, but few significant differences were observed for these treatment combinations. Few consistent differences were observed for carbohydrate analysis with lower mowing heights or increased rolling frequencies, but increased mowing height generally resulted in higher carbohydrate concentrations in foliage and crown material following heat stress. Ball mark severity was rarely affected by these treatment combinations, but increased rolling frequencies increased maximum ball mark injury and extended recovery time. Fewer significant differences were observed for these parameters compared to initial expectations, but increased mowing heights and reduced rolling frequencies generally created healthier turf.

Download or read book Cultivation and Topdressing Sand Color Effects on Creeping Bentgrass Golf Greens written by Christopher Arthur Proctor and published by . This book was released on 2009 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Creeping Bentgrass Management written by Peter H. Dernoeden and published by John Wiley & Sons. This book was released on 2000-07-15 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Creeping Bentgrass Management presents a difficult management problem throughout the summer season. This complex dilemma is related to numerous and often interrelated factors such as: extreme air and soil temperatures, drought or excessively wet soils, dense thatch or organic mats, mechanical and other physical stresses, improper management practices, the misuse of chemicals, and other physical stresses. The goal of this useful manual--complete with helpful color photographs--is to give golf course superintendents practical tools to better understand the many stress factors that contribute to the creeping bentgrass decline complex. It will help you pinpoint problems, and implement cultural and chemical solutions to maintain the integrity of your course.

Download or read book Biology and Pathogenicity Factors of Rutstroemia Floccosum and the Effects of Lightweight Rolling on Dollar Spot Disease Incidence in Creeping Bentgrass Putting Greens written by Paul Ryan Giordano and published by . This book was released on 2010 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agronomy Abstracts written by and published by . This book was released on 1995 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).

Download or read book Mowing and Light weight Rolling of Creeping Bentgrass Agrostis Stolonifera L Putting Greens During Summer Heat Stress Periods in the Transition Zone written by and published by . This book was released on 2006 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major challenge for golf course superintendents in the transition zone is to manage Agrostis stolonifera L. (creeping bentgrass) putting greens during heat stress periods of June, July, and August. In 2004 and 2005, a study was conducted to compare the effects of alternating rolling and mowing with traditional methods of everyday mowing on the green speed, turf quality, and disease occurrence creeping bentgrass putting greens in the transition zone. Treatments consisted of mowing six days week−1 without rolling, mowing six days week−1 with rolling three days week−1, and mowing three days week−1 alternating with rolling three days week−. Visual quality ratings for treatment effects determined a treatment and time interaction, which showed that alternating mowing with rolling had no significant change in turf quality throughout the study. In addition, mowing everyday maintained as high of quality throughout two months, but not at three months; while, mowing with rolling had significant decreases in quality by two months. There was no significance noted for disease incidence or root length among treatments or locations. Green speeds were statistically different for many of the collection dates for all locations. However, these speeds were only realistically for only 4 of 37 collection dates. Green speeds must exceed 15.2 centimeters of difference before the average golfer can distinguish a difference. A partial budgeting analysis was implemented to understand the economic effects as well. A mail survey was conducted in January 2006 to determine the standard mowing and rolling practices for golf courses in Tennessee, and it had a 37.5 percent response rate. A partial budgeting analysis was performed to determine the additional costs or savings generated by comparing mowing six days week−1, mowing six days week−1 with rolling three days week−1, and alternating mowing with rolling three days week−1. Adding rolling three days week−1 to a program of mowing six days week−1 increased overall total cost as expected for both triplex and walk behind mowers over all golf course types. However, alternating mowing with rolling three days week−1 has the potential to reduce total cost, particularly for courses using walk behind mowers, compared to only mowing six days week−1.

Download or read book Fundamentals of Turfgrass Management written by Nick E. Christians and published by John Wiley & Sons. This book was released on 2016-10-20 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: FUNDAMENTALS OF TURFGRASS MANAGEMENT THE PREMIER TURFGRASS MANAGEMENT HANDBOOK—UPDATED AND EXPANDED Fundamentals of Turfgrass Management is the longstanding authority on all aspects of the science and practices behind world-class turfgrass care. This fully revised Fifth Edition comes enriched by two new authors who share their cutting-edge research and real-world expertise on such topics as growth, soil testing, nutrition, herbicides, insecticides, and fungicides. Coverage throughout is refreshed with new illustrations and charts, as well as: Expanded coverage on professional lawn care programs, including cool-season and warm-season turfgrasses, establishing methods and costs, cultivation, sand topdressing, and more Enhanced material on the most up-to-date thinking and practices in weed management Brand-new chapters on the environmental, economic, and quality-of-life benefits of well-maintained turf, as well as the influence of light on turf health Whether you’re earning a degree or a paycheck, Fundamentals of Turfgrass Management, Fifth Edition remains the most complete, respected guidebook of solutions for developing and maintaining the finest-standards of turfgrass.

Download or read book Non target Effects of Strobilurin Fungicide Applications on Creeping Bentgrass Putting Greens During Summer Stress written by Jesse J. Benelli and published by . This book was released on 2013 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous research has indicated that strobilurin fungicide applications may improve summer stress tolerance of creeping bentgrass (Agrostis stolonifera L.) putting greens. In this experiment, strobilurin fungicides were integrated within a summer fungicide program to evaluate disease severity and plant physiological effects. Fungicide programs were applied on a 'Dominant Southern' creeping bentgrass putting green; all of which consisted of five fungicide spray applications from June to August during 2011 and 2012. The 2nd and 5th application in each program consisted of a strobilurin fungicide. Strobilurin fungicides evaluated included pyraclostrobin, azoxystrobin, fluoxastrobin, or trifloxystrobin. The remaining fungicide applications were identical across programs. Measurements of visual quality, spectral reflectance, turfgrass cover, rooting characteristics, and disease severity were collected. The non-treated control was similar to treated plots in all parameters in 2011, and until 42 and 56 days after initial treatment (DAIT) the following year. At this time, fungicide programs began to exhibit greater visual quality, turfgrass cover, and spectral reflectance compared to the non-treated control. Differences in physiological effects coincided with the first observation of brown patch (Rhizoctonia Solani Kühn) in the experimental area. These data suggest that strobilurin fungicides exhibit excellent efficacy for disease control during summer, and that direct physiological effects may be transient and observable over the long term. A 2-year field experiment was conducted to determine if applications of pyraclostrobin, azoxystrobin, fluoxastrobin, and trifloxystrobin could improve plant physiological effects of a 'Dominant Southern' creeping bentgrass putting green in the absence of visible foliar disease. Experimental units were arranged in a split-plot randomized complete block design. A fungicide mixture containing chlorothalonil and iprodione and a no fungicide treatment served as the whole-plots. Chlorothalonil and iprodione were applied at 14-day intervals. Sub-plots were treated with strobilurin fungicides (azoxystrobin, pyraclostrobin, fluoxastrobin, and trifloxystrobin) and a non-treated control. Sub-plots were applied at 14-day intervals. Neither differences in disease severity nor any physiological effect was observed on any assessment date over the course of two years. The results of this experiment suggest that while strobilurin fungicides perform well for disease control, detectable plant physiological effects under field conditions were limited.

Download or read book Handbook of Turfgrass Management and Physiology written by Mohammad Pessarakli and published by CRC Press. This book was released on 2007-10-09 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multibillion dollar industry that has tripled in the last ten years, turfgrass management plays an important role in landscaping, golf courses, and other sports surfaces. Proper management and cultural practices are crucial for the performance of these versatile grasses, creating a demand among scientists, researchers, and industry professionals

Download or read book Golf Course Management written by and published by . This book was released on 1997 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Methiozolin Rates and Nitrogen Fertility Strategies for Annual Bluegrass Control and Creeping Bentgrass Safety on Golf Greens written by Chen Fang and published by . This book was released on 2015 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments were conducted on the Ohio State University Golf Club practice green and one on a USGA green at the Ohio Turfgrass Foundation Research and Education Facility. The first project on the OSU Golf Club putting green was designed to study the interaction of methiozolin, nitrogen rate and fertilizing frequency on creeping bentgrass recovery and annual bluegrass suppression/control in the spring with fall only methiozolin treatments and fall/spring methiozolin treatments. The second project consisted of three methiozolin rates and four rates to determine the best combination of spring methiozolin rate and spring nitrogen application strategies that shows best control over annual bluegrass while benefiting creeping bentgrass recovery and safety. The third project at the OSU Research and Education Facility was to study the effects of five nitrogen rates on the lateral growth/recovery and quality of creeping bentgrass with/without methiozolin treatments.