October 2013

SportsTurf provides current, practical and technical content on issues relevant to sports turf managers, including facilities managers. Most readers are athletic field managers from the professional level through parks and recreation, universities.

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Please fill out this form in its entirety q Yes, please start/continue my SportsTurf ADVERTISERS' INDEX FREE subscription to SportsTurf Advertiser FOR FASTER SERVICE visit our website at or fax to 845-856-5822 American Sports Builders Association 17 q No, thank you. Page # Web Address Aquatrols 3 Barenbrug USA 48 Beam Clay 44 CoverSports USA 15 Cub Cadet 2 Diamond Pro 13 Eco Chemical 11 Graco Inc. 23 Hydraway Drainage Systems 33 SportsTurf Managers Association 5 SportsTurf Managers Association 27 Stabilizer Solutions 9 STEC Equipment 19 The Toro Company 44 The Toro Company 47 TurfTime Equipment, LLC 44 World Class Athletic Surfaces 21 Which version would you like to receive? q Print q Print/Digital Signature: (required) Date: Name: (please print) Title: Company: Address: City: State: Phone: Zip: Fax: Email: (required) October 2013 - Expires March 2014 - RS1310 1 What is your company's primary business? (check ONLY ONE) F q Sports Complex T q School, College or University G q Athletic Field and/or Park Architect/Designer P q Park H q Other (please specify)_____________________________ 2 Which of the following best describes your title? (check ONLY ONE) A q EXECUTIVE/ADMINISTRATOR — President, Owner, Partner, Director, General Manager, Chairman of the Board, Purchasing Agent, Athletic Director B q MANAGER/SUPERINTENDENT — Superintendent, Landscape/Ground Maintenance Manager, Foreman, Supervisor C q GOVERNMENT OFFICIAL — Government Commissioner, Agent, Other Government Official D q SPECIALIST — Architect, Designer, Consultant, Agronomist, Horticulturist, Certified Specialist F q COACH E q Other (please specify)______________________________________ 3 Do you have the authority to buy, specify or recommend products and/or services for your business or organization? Y q Yes N q No 4 Yearly operating expenditures (excluding salaries) F q Over $1 million E q $500,001 - $1 million D q $100,001 - $500,000 C q $50,001 - $100,000 B q $25,001 - $50,000 A q $25,000 and under 5 Please also send a free subscription to the following people at the same location Name _____________________________________Title___________________________________ Name _____________________________________Title___________________________________ bluegrasses with the lowest water applications were also ranked among those with the highest visual quality (Fig. 6; there were no statistical differences among cultivars with average visual quality greater than 5.5). The amount of water applied to these 15 cultivars with superior turf quality was also below the mean water applied to all 30 bluegrasses (32.8 cm). Similarly, visual quality in 12 of the 15 bluegrasses that received the least water was greater than the mean of all 30 bluegrasses (5.78), although all 15 were statistically similar. In contrast to the 15 top performers, six cultivars were ranked within the group that received the most water and had the lowest visual quality (Fig. 6). Those six cultivars, which included Kenblue, Wellington, Midnight II, Baron, Diva, and Shamrock, had neither the high visual quality nor low water requirement traits we were screening for in this study. CONCLUSIONS Cultivar selection in KBG had significant impacts on water requirements and visual quality ratings. Among cultivars, differences in seasonal water applications were as great as 21.6 cm and differences in days to 50% wilt between irrigations were as great as 6.7 days, nearly 1 week). Based on statistical range tests, only 15 of the 30 cultivars were in the group that both received the least water and had the greatest visual quality. Results indicated that, under conditions similar to those in our study, KBG in the Compact America and MidAtlantic phenotypic groups can be selected for their lower irrigation requirements without sacrificing visual quality, and types from those two groups may represent the best selections for breeding efforts to achieve such goals.n Dr. Dale J. Bremer is associate professor, Dept. of Horticulture, Forestry and Recreation Resources, Kansas State University; Dr. Jason D. Lewis is assistant professor, Dept. of Horticulture & Crop Science, California Polytechnic State University, San Luis Obispo. This article was reprinted with permission from Sports Turf Manager, Vol 26, No 1, Spring 2013. This research was funded by United States Golf Association, Turfgrass Producers International, and the Kansas Turfgrass Foundation. The technical assistance of Tony Goldsby was greatly appreciated. SportsTurf 45

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