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Evaluation of the Qualitative Characteristics of Creeping Bentgrass(Agrostis palustris Huds.) Cultivars Using NTEP Data  

Jang, Duk-Hwan (Korea Turfgrass Research Institute)
Joo, Young-Kyoo (College of Science & Tech., Yonsei University)
Publication Information
Asian Journal of Turfgrass Science / v.21, no.1, 2007 , pp. 1-7 More about this Journal
Abstract
This study was initiated to evaluate the qualitative characteristics of creeping bentgrass(Agrostis palustris Huds.) cultivars for the climate In Korea through the NTEP(Nat'l Turfgrass Evaluation Program) data. 'L-93' showed the highest rating in overall mean visual quality. It was also the most prominent cultivar in seedling vigors, ground cover, and genetic color especially in summer. In case of turf texture, 'Penn A-1' and 'A-2' were the finest group, but the poorest group in cold tolerance. Leaf density and thatch accumulation were lower with 'Penncross', 'Pennlinks', 'Crenshaw', and 'L-93' as compared with 'Penn A'-type and 'G'-type cultivars. Resistance to moss invasion was greater with 'Penn A'-type and 'G'-type cultivars, but 'Penncross' was the least. These observations indicated that leaf density was considered to associate with the characters of turf quality, thatch accumulation and resistance to moss invasion. 'Penn A'-type cultivars were highly resistant to snow mold. Greater resistance to brown patch was associated with 'Penn A' and 'Penncross'. Higher resistance to pythium blight was found with 'Penncross' and 'Pennlinks'. 'L-93' showed higher resistance to dollar spot, but not to pythium. Therefore, these results demonstrated that turf maintenance program for the new bentgrass cultivars should be different from a conventional management for the cultivar of 'Penncross'.
Keywords
bentgrass; disease resistance; NTEP; Penncross; turf maintenance; turf quality;
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Times Cited By KSCI : 1  (Citation Analysis)
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