Coverage Characteristics of Main Creeping Bentgrass (Agrostis stolonifera L.) Cultivars
Young Soo Sin1 Sang Ryul Shim2 Jae Hwan Kim3,*
1Chunryong Country Club, Jincheon 27812, Korea 2Department of Landscape Architecture, Cheongju University, Cheongju 28503, Korea 3Department of Landscape Architecture & Urban Plan, Cheongju University, Cheongju 28503, Korea
Coverage characteristics were evaluated under main creeping bentgrass (Agrotis stolonifera L.) cultivars used in Korean golf course greens. Eight cultivars of creeping bentgrass (CB) were ‘Penncross’, ‘T-1’, ‘Penn A-1’, ‘Penn A-4’, ‘Shark’, ‘Declaration’, ‘Pure Distinction’ and ‘Pure Select’. Experiment was conducted on a 1m×1m plot with three replication (total plot size=24 m2) of Chunryong country club located in Jincheon, Chungcheongbuk-do, Korea. Weekly coverage rates and required days to 25, 50, 85, and 100% coverage after seeding were measured and analyzed. Significant differences of CB cultivars were observed in weekly coverage rates and required days of the 50, 85, and 100% coverage after seeding. As for the coverage rates, it was 30.0-46.7% (16.7% difference) on 3 weeks after seeding (WAS), 70.0-80.0% (10% difference) on 4 WAS, 83.3-90.0% (6.7% difference) on 5 WAS and 93.3-100% (6.7% difference) on 6 WAS among CB cultivars, respectively. And the number of days it takes for treated CB cultivars to cover up to 85% of plot was 29.7-35.2 days.