Mepiquat chloride 처리 후 크리핑 벤트그래스 생육 억제 효과

• Published in: Weed & turfgrass science Vol. 9; no. 3; pp. 289 - 297
• Main Authors: 허혁재(Hyeok-Jae Heo), 박은혜(Eun-Hye Park), 김진호(Jin-Ho Kim), 윤정호(Jeong-Ho Youn), 김영선(Young-Sun Kim), 이긍주(Geung-Joo Lee)
• Format: Journal Article
• Language: Korean
• Published: 한국잡초학회·한국잔디학회 01.09.2020; 한국잔디학회
• Subjects: 농학; Mepiquat chloride(MC); 잔디 예지물량; Shoot length; 초장; Clipping yield; 메피쾃클로라이드; Creeping bentgrass; 크리핑 벤트그래스
• ISSN: 2287-7924; 2288-3312
• DOI: 10.5660/WTS.2020.9.3.289

Mepiquat chloride는 지베렐린 생성을 억제하는 quarternary ammonium계 생장조정제이다. 본 연구는 mepiquat chloride가 trinexapac-ethyl와 같은 잔디관리용 생장조정제로서 가능성을 평가하기 위해 크리핑 벤트그래스에서 mepiquat chloride의 처리에 따른 생육 억제 및 잔디 품질의 변화를 조사하였다. 크리핑 벤트그래스의 엽색 지수, 엽록소 지수 및 가시적 잔디 품질은 mepiquat chloride 처리 후 처리구간 통계적 유의차를 나타내지 않아 잔디 품질의 변화 및 약해 발생은 확인할 수 없었다. 잔디의초장은 mepiquat chloride 처리 28일 경과 후 무처리구보다 약 20-23% 정도 감소하였고, 잔디예지물량은 39-56%정도 감소하였다. RT와 비교할 때 mepiquat chloride 처리구들의 초장과 잔디 예지물량은 통계적으로 유의적인 차이를 나타내지않았다. Mepiquat chloride의 처리량은 잔디예지물량에 대해서는 부의 상관관계(P<0.05)를 나타내었다. 이들 결과를 종합할 때, 크리핑 벤트그래스에서 mepiquat chloride 처리 시 지상부 생장이 억제되고, 예지물량이 감소되어 mepiquat chloride는잔디의생장조정제로활용이가능하다는것을알수있었다. Mepiquat chloride (MC) was a plant growth regulator of quarternary ammonium family acting on inhibiting gibberellin biosynthesis. This study was conducted to evaluate the inhibition effect of MC on the growth of creeping bentgrass (Agrostis palustris) by investigating visual quality indices, shoot length and clipping yield. As compared with control, turf color index, chlorophyll index and visual quality in the creeping bentgrass treated with MC was not significantly different, meaning those doses dis not interfere creeping bentgrass growth. The shoot length of MC treatments was decreased by 20-23% on 28 day after treatment than that of control and clipping yield by 39-56%. Compared with another growth retardant, the reference trinexapac-ethyl (RT), clipping yield of MC treatments were not significantly different, but retardant effect was more evident. The applying amount of MC was correlated with clipping yield negatively (P<0.05). These results indicated that the MC application was retarded the shoot growth of creeping bentgrass and decreased the clipping yield, and that MC might be another choice of growth retardant applying to creeping bentgrass. KCI Citation Count: 0