Selection of Creeping Bentgrass(Agrostis Palustris Huds.) Cultivar for Fairway in Golf Course

골프장 페어웨이에 적합한 크리핑 벤트그래스 품종 선발

  • Cha, Young-Gi (Shinsegue Engineering & Constrution Co. Ltd.) ;
  • Kim, Kyung-Duck (Turfgrass & Environment Research Institute, Samsung Everland Inc.) ;
  • Park, Dae-Sup (Turfgrass & Environment Research Institute, Samsung Everland Inc.) ;
  • Kim, Doo-Hwan (Department of Molecular Biotechnilogy, Kunkuk University)
  • 차영기 (신세계 건설(주)) ;
  • 김경덕 (삼성에버랜드(주) 잔디환경연구소) ;
  • 박대섭 (삼성에버랜드(주) 잔디환경연구소) ;
  • 김두환 (건국대학교 분자생명공학과)
  • Received : 2011.11.18
  • Accepted : 2011.12.08
  • Published : 2011.12.31

Abstract

This study was conducted to evaluate the growth characteristics of creeping bentgrass cultivars for fairway of golf course at Yeoju area in Korea. At germination and coverage rate of creeping bentgrass, 'Shark' and 'CY-2' were excellent, 'L-93', 'Alpha', 'T-1 was in order', respectively. Visual qualities of 'Shark' and 'CY-2' also were excellent. Especially, 'Shark', 'T-1', and 'CY-2' showed excellent visual quality in summer days, the critical times for the bentgrass fairway quality. 'Shark', 'CY-2' and 'T-1' were excellent in Chlorophyll contents throughout the evaluation period. Chlorophyll content of 'T-1' was maintained very high in summer. 'CY-2' and 'Shark' showed the best root growth at the beginning of the study and contained longer and hairy roots. Which might make these two cultivars' water absorption easier than other's. NDVI (normalized difference vegetation index)of 'Shark', 'L-93' and 'CY-2' was excellent, respectively. 'T-1' showed the highest density and 'Shark', 'CY-2', 'Alpha', 'L-93' was followed by. The density of 'T-1' was rather increased in summer season, while those of other cultivars were decreased. Three diseases such as anthracnose, brown patch, and dollar spot, were appeared during the evaluation period. 'T-1' and 'L-93' were very sensitive to anthracnose which occurred at the beginning days of the study. The most susceptible cultivars to brown patch were 'Alpha' and 'L-93'. 'T-1' was the least resistant to dollar spot which occurred at the same time with brown patch.

본 연구는 페어웨이 조성에 적합한 크리핑 벤트그래스 품종을 선발하기 위해 수행 되었다. 'Shark'와 'CY-2' 품종의 시각적 품질이 가장 우수하였으며, 크리핑 벤트그래스 페어웨이에서 가장 많이 고려 되어야 하는 하절기 시각적 품질은 'Shark', 'CY-2', 'T-1', 'Alpha', 'L-93' 순이었다. 포지 조성 초기 엽록소함량이 가장 우수한 품종은 'Shark'와 'CY-2' 그리고 'T-1' 이다. 'T-1'은 하절기 색상이 매우 짙게 유지가 되었다. 조성 초기부터 'CY-2'와 'Shark'의 뿌리 길이가 길고 우수했으며 잔뿌리가 많아 수분 흡수가 매우 용이할 것으로 판단된다. 조성 초기부터 가장 우수한 식생 지수를 보인 것은 'Shark'와 'L-93' 그리고 'CY-2'였다. 가장 높은 밀도를 보인 품종은 'T-1' 이였으며 다른 품종과 다르게 하절기 밀도가 떨어지지 않고 오히려 증가하였다. 'T-1' 다음으로 'Shark'가 높은 밀도를 보였고, 'CY-2', 'Alpha', 'L-93'의 순으로 밀도가 높았다. 실험기간 동안 탄저병, 브라운패취, 달라스팟이 발병 하였으며 'CY-2'가 가장 내병성이 강하였고 3가지 병 모두 내병성을 보였다. 본 연구 결과 5개 품종 중 'CY-2'와 'Shark'가 골프장 페어웨이용으로 가장 적합하였다.

Keywords

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