한국잔디에 대한 Prohexadione-calcium의 생장 억제 효과

임상묵(Sang Muk Lim),최봉수(Bong Su Choi),우선희(Sun Hee Woo),이철원(Chul Won Lee) 韓國雜草學會 2011 Weed&Turfgrass Science Vol.31 No.2

본 연구는 예초 직후에 prohexadione-calcium을 처리하여 잔디의 생장 실태를 조사하였다. 한국잔디로 조성된 잔디밭이나 골프장을 효과적으로 관리하기 위하여 한국잔디의 예초 직후 prohexadione-calcium의 농도를 달리하여 엽면 처리한 결과 무처리와 비교하여 잎의 생장이 현저히 감소되는 것으로 나타났으며 prohexadione-calcium의 1회 처리로도 그 효과가 처리후 50일까지 잎의 생장이 46~50% 정도 감소되는 것으로 나타났고, 엽폭도 처리농도가 높을수록 무처리에 비하여 좁아졌다. prohexadione-calcium 처리후 건물중의 변화를 보면 처리후 2주후부터 무처리에 비하여 현저하게 감소하는 것으로 나타났는데, 처리 농도가 높을수록 건물중이 작았으며 처리 40일까지도 건물중의 증가가 무처리에 비하여 유의하게 감소하는 것으로 나타났다. 또한 엽색도는 prohexadione-calcium의 처리구가 무처리구에 비하여 높았다. This experiment was carried out to investigate the growth responses of zoysiagrass (Zoysia japonica Steud.) as affected by prohexadione-calcium foliar application for the effective labour saving and cost down management in the lawn yard, field and golf course etc. The leaf growth of zoysiagrass treated with prohexadione-calcium one day after mowing was significantly slow compared to the untreated plot. And the effect was continued up to 50 days. The growth inhibition rate at the treated plot was 46 to 50% compared to untreated plot and the leaf widths treated with prohexadione-calcium were narrower than control plot. The change of leaf dry weight 10 days after prohexadione-calcium treated was significantly shown less speedy than untrated plot and the results were continued up to 40 days after application. The SPAD values of the leaf colour were increased in the treated plots and continued for 40 days more.

생장억제제 Prohexadione-calcium의 처리에 따른 클로버의 생육억제 효과

최의주(Eui Joo Choi),최봉수(Bong Su Choi),우선희(Sun Hee Woo),이철원(Chul Woo Lee) 韓國雜草學會 2012 Weed&Turfgrass Science Vol.32 No.2

본 연구는 한국잔디로 조성된 잔디밭에서 예초 직후에 prohexadione-calcium을 엽면 처리하여 잔디와 경합하는 클로버의 생장을 억제하는 효과를 구명하기위하여 수행되었다. 클로버의 엽병장과 엽면적은 prohexadione-calcium의 처리로 7주에도 무처리에 비하여 현저하게 억제되었고, 클로버의 생엽중도 무처리에 비하여 현저하게 억제되는 것으로 나타났다. 엽색도는 무처리에 비하여 prohexadione-calcium 처리구가 높아졌고, 처리 농도가 높아질수록 엽색도도 높아지는 것으로 조사되었다. 잔디밭에서 클로버를 방임할 때보다 prohexadione-calcium의 처리는 클로버의 피복율을 현저히 억제할 수 있었다. This experiment was carried out to investigate the growth responses of white clover (Trifolium repens L.) as affected by prohexadione-calcium foliar application for the growth restraint in the lawn yard, field and golf course etc. The leaf length and leaf weight of white clover were significantly retarded compared to the untreated plot with foliar application of prohexadione-calcium after mowing within 1 day, and the effect was continued up to 50 days. The leaf area of clover with prohexadione-calcium treatment was to be narrowed as compared to untreated plot. The SPAD value of the leaf colour was increased in the treated plots and was to be continued for 40 days more. The coverage rate of clover was decreased with prohexadione-calcium foliar application after mowing in the lawn ground.

Prohexadion-Calcium이 꼬마배나무이 방제에 미치는 영향

조영식,최장전,송장훈,황해성 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.10

배에서 꼬마배나무이(Cacopsylla pyricola)나 진딧물류 해충은 수체내 질소함유량이 많고 수관의 과번무는 이들 해충의 발생을 조장하고 화학적 방제시 약제가 해충에 접촉하는 것을 어렵게 하여 방제효과를 떨어뜨린다. Prohexadione-Calcium의 효과는 지베렐린 대사를 억제하는 식물생장조절제로 사용되고 있으며, 배, 사과 등의 신초생장을 억제하여 수관밀도를 줄여 주는 기능을 하는 것으로 알려져 있는데, Prohexadione-Calcium과 꼬마배나무이 방제시 살포하는 농약과 상승효과를 확인하고자 본 시험을 수행하였다. 2008년 6월 15일에 Prohexadione-Calcium을 62.5, 125, 250, 500ppm을 각각 처리하였는데, 처리 30일전 Abamectin 3,000배, 10일전 acetamiprid+ etofenfrox 2.58Wp 1,000배, 처리 3일 후에 amitraz+buprofezin 12.5+12.5 Ec 1,000배, 처리 25일 후 dinotefuran 10Wp 1,000배를 처리하였으며, 처리 30일 후 Prohexadione-Calcium을 처리하지 않은 시험구를 비교하여 꼬마배나무이 밀도를 조사하였다. Prohexadione-Calcium을 처리하지 않고 살충제 처리구에서 꼬마배나무이 밀도가 잎당 평균 0.12마리, Prohexadione-Calcium 125ppm 처리구는 0.012마리로 가장 적었지만, Prohexadione-Calcium의 처리 농도간 꼬마배나무이 밀도 차이는 적었다.

온도 및 생장조절제가 국내 육성 사과 품종의 화분발아율 및 화분관 신장에 미치는 영향

권헌중(Hun-Joong, Kweon),박무용(Moo-Yong Park),송양익(Yang-Yik, Song),손광민(Kwang-Min Son),사공동훈(Dong-Hoon Sagong) (사)한국생물환경조절학회 2016 생물환경조절학회지 Vol.25 No.3

본 시험은 만개기 기온(15~40oC) 및 생장조절제(GA4+7+BA와 prohexadione-calcium) 살포가 국내 주요 사과품종(‘후지’, ‘쓰가루’)과 국내에서 육성한 품종들(‘추광’, ‘감홍’, ‘홍안’, ‘홍금’, ‘홍로’, ‘홍소’, ‘화홍’, ‘섬머드림’, ‘선홍’)의 화분 발아율 및 화분관 신장에 미치는 영향을 조사하고자 실시하였다. 15℃부터 25℃까지 온도가 올라갈수록 화분 발아율과 화분관 신장 길이는 증가되었으나, 30℃ 이상의 고온은 화분 발아율과 화분관 신장 길이를 억제시켰다. 30oC 이상의 고온에서 화분 발아율과 화분관 신장 길이가 가장 높았던 국내 육성 사과품종은 ‘선홍’이었다. GA4+7+BA 살포는 무처리구에 비해 화분 발아율 및 화분관 신장 길이를 증진시켰으나, 이러한 효과는 40℃에서 발생하지 않았다. prohexadione-calcium 살포는 화분 발아율과 화분관 신장 길이에 영향을 주지 않았다. 결론적으로, 사과나무 만개기 기온이 30~35℃ 정도로 높아지면, 인공수분 후 GA4+7+BA를 살포하는 것이 착과 증진에 좋을 것으로 판단되었다. This study was carried out to investigate the effect of temperature (15~40℃) and the spraying plant growth regulators (GA4+7+BA and prohexadione-calcium) during full blooming on pollen germination and pollen tube growth of the commercial apple cultivars (‘Fuji’ and ‘Tsugaru’) and apple cultivars bred in Korea (‘Chukwang’, ‘Gamhong’, ‘Hongan’, ‘Honggeum’, ‘Hongro’, ‘Hwahong’, ‘Hongso’, ‘Summer dream’ and ‘Sunhong’). Pollen germination and pollen tube growth were increased with increasing temperature from 15 to 25℃, but high temperature over 30℃ inhibit those. The apple cultivar bred in Korea that shows the highest value on pollen germination and pollen tube growth at over 30℃ was ‘Sunhong’. The spraying GA4+7+BA increased pollen germination and pollen tube growth than control, but that effect was not show at 40℃. The spraying prohexadione-calcium was not affect to pollen germination and pollen tube growth. In conclusion, if the air temperature during full bloom of apple tree rises about 30~35℃, the spraying GA4+7+BA after artificial pollination will be good to increasing fruit set.

생장조정제 처리 후 생육 시기별 퍼레니얼 라이그래스의 억제 효과

임승재,김태웅,김영선 (사) 한국생물환경조절학회 2023 생물환경조절학회지 Vol.32 No.3

This study was conducted to evaluate the effects of trinexapac-ethyl (TE) and prohexadione-calcium (PC) on the growth and turf quality of perennial ryegrass (Lolium perenne L.). Treatments were designed as follows; control (non-treatment), TE (TE 0.01 a.i. g·m-2·100mL-1), and PC (PC 0.01 a.i. g·m-2·100mL-1). Compared with control, turf color index and chlorophyll content of TE and PC treatments were not significantly different. As applied plant growth regulators (PGRs), shoot length in the TE and PC was decreased by 8.9–12.4% and 6.7–13.6%, respectively, and clipping yield by 44.4–45.8% and 40.6–40.9%. When evaluated with the growth of shoot length after applying PGRs, residual days of TE and PC were 43.6 and 37.9 days after treatment of PGRs (DAT) in the 1st experiment (July 29-August 26), respectively, and 38.3 and 39.5 DATs in the 2nd experiment (September 30-October 28). These results indicated that an application of TE or PC decreased shoot length and clipping yield in the perennial ryegrass, and their residual time was about 40±3 DATs. Perennial ryegrass applied with PGRs like TE and PC was not significant seasonal difference, and might be not phytotoxic. 본 연구는 퍼레니얼 라이그래스에서 생장조정제 trienexapacethyl과 prohexadione-calcium을 처리하였을 때 생육 시기별잔디 품질과 생육 억제 효과를 조사하였다. 처리구는 대조구(Control), TE 처리구(0.01 a.i. g·m-2·100mL-1) 및 PC 처리구(0.01 a.i. g·m-2·100mL-1)으로 설정하였다. 생장조정제 처리후 퍼레니얼 라이그래스의 엽색 지수 및 엽록소 함량은 대조구와 통계적으로 유의적인 차이를 나타내지 않았다. TE와 PC 처리구에서 잔디의 초장은 각각 8.9-12.4%와 6.7-13.6% 씩 감소하였고, 잔디 예지물량은 44.4-45.8%와 40.6- 40.9%씩 감소하였다. 생장조정제 처리 후 경과 일수와 초장의 변화를 이용하여 약효 지속 기간을 조사하였을 때, TE와PC 처리구는 1차 조사(7월 29일-8월 26일)에서 각각 43.6일과37.9일, 2차 조사(9월 30일-10월 28일)에서는 38.3일과 39.5일이었다. 상기 결과들을 종합할 때, TE와 PC의 처리는 퍼레니얼 라이그래스의 초장 및 생육을 억제하였고, 약효 지속 기간은 약 40 ±3일 정도를 나타냈다. 또한 생장조정제 처리시 계절별 잔디 생육과 품질에 영향을 미치지 않았으며, 약해는 발생하지 않았다.

트리넥사팍에틸과 프로헥사디온칼슘 처리 후 왕포아풀 (Poa pratensis L.)의 생육 시기별 생장 및 잔디 품질

김태웅,김영선 한국화훼학회 2023 화훼연구 Vol.31 No.4

This study aimed to assess the impact of seasonal application of plant growth regulators (PGRs) such as trinexapac-ethyl (TE) and prohexadione-calcium (PC) on the growth and quality of Kentucky bluegrass (Poa pratensis). The treatments were as follows: control (no treatment), TE (TE 0.01 a.i. g·m-2), and PC (PC 0.01 a.i. g·m-2). In the first experiment (summer, August) and the second experiment (autumn, October), the visual quality and chlorophyll content of the Kentucky bluegrass treated with PGRs did not significantly differ from the control, and no phytotoxicity was observed. The shoot length in the TE and PC treatments decreased by 34.9% and 32.2%, respectively, compared to the control in the first experiment and by 35.5% and 33.8% in the second experiment. Compared to the control, the clipping yield of the TE and PC treatments decreased by 47.2% and 45.0% in the first experiment, respectively, and by 35.6% and 31.0% in the second experiment. When comparing seasonal shoot elongation after applying PGRs, the growth inhibition rate (GIR) of the TE treatment increased in the first experiment after 28 days and the PC treatment after 7 days. These results suggest that the application of TE and PC to Kentucky bluegrass was not phytotoxic and effectively inhibited shoot elongation and clipping yield. Furthermore, while PGRs could be applied to Kentucky bluegrass in summer and autumn, their GIRs were higher in summer.

생장억제용 생력형 생장조정제 Prohexadione-calcium의 개발

황인천(In Cheon Hwang),이인중(In Jung Lee),조태경(Tae Kyoung Cho),김정태(Jung Tae Kim),윤철수(Cheoul Su Yoon) 韓國雜草學會 2009 Weed&Turfgrass Science Vol.29 No.1

Development for famer’s labor-saving plant growth control in an effort to develop environment-friendly agriculture and labor-saving of agricultural practice. This paper summarizes the published literature and characteristic, biological test, toxicology etc.

주간 절단시기 및 생장조절제를 이용한 ‘후지’/M9 사과나무 수관 상단부 생장조절

사공동훈 ( Dong-hoon Sagong ),이재왕 ( Jae-wang Lee ),윤태명 ( Tae-myung Yoon ) 한국환경농학회 2018 한국환경농학회지 Vol.37 No.2

BACKGROUND: The vigorous shoot growth in upper part of apple tree canopy leads to poor fruit quality and flower bud formation in lower part of canopy. So, this study was conducted to develop the proper control method about the shoot growth in upper part of apple tree canopy. METHODS AND RESULTS: Trunks of 'Fuji'/M9 apple trees were cut (back pruned) to 2.5 m in tree height on 11 February (dormant) or 12 April (full bloom). Naphthalene acetic acid (NAA) was applied at 2.0% to cut surface when trunk was pruned. Prohexadione-calcium (Pro-Ca) was sprayed at 250 mg/L above 2.0 m in tree height at 23 April (petal fall). The NAA or Pro-Ca application after trunk was pruned at dormant (TR-2 and TR-3) significantly reduced shoot growth in upper part of canopy compared with the control (tree was only pruned at dormant, TR-1), but the percent of shoots showing the secondary growth of TR-3 was higher over 2 times than that of TR-2. The reduction of shoot growth in upper part of canopy by TR-2 and TR-3 increased the fruit red color from the lower part in the treating year and blooming of the lower part in the following year. CONCLUSION: Applying 2.0% NAA to cut surface of pruned apple trunk at dormant was the most effective way for stabilization of the tree vigor in upper part of the canopy in a high density apple orchard.