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Effect of Flower and Fruit Thinner on Fruit Set and Fruit Quality of ‘Gamhong’ Apples

적화제 및 적과제가 ‘감홍’ 사과의 착과와 과실 품질에 미치는 영향

Jingi Yoo1
,
Bong Kook Kang1
,
Dae Hyun Kim1
,
Jinwook Lee18
,
Dong Hoon Lee2
,
Hun-Joong Kweon3
,
In Myung Choi4
,
Hee Young Jung5
,
Myoung-Gun Choung6
,
Dong Geun Choi7
,
In-Kyu Kang1*
유 진기1
,
강 봉국1
,
김 대현1
,
이 진욱18
,
이 동훈2
,
권 헌중3
,
최 인명4
,
정 희영5
,
정 명근6
,
최 동근7
,
강 인규1*
1Department of Horticultural Science, Kyungpook National University
2Planning and Coordination Division, National Institute of Horticultural and Herbal Science, RDA
3Apple Research Institute, National Institute of Horticultural and Herbal Science, RDA
4Fruit Research Division, National Institute of Horticultural and Herbal Science, RDA
5College of Agriculture and Life Science, Kyungpook National Unviersity
6Department of Herbal Medicine Resource, Kangwon National University, Dogye Campus
77Department of Horticultural Science, Chonbuk National University
8Department of Horticultural Science, Mokpo National University
1경북대학교 원예과학과
2국립원예특작과학원 기획조정과
3국립원예특작과학원 사과연구소
4국립원예특작과학원 과수과
5경북대학교 응용생명과학부
6강원대학교 생약자원개발학과
7전북대학교 원예학과
8목포대학교 원예과학과
*교신저자. *Corresponding Author. 
28 February 2016. pp. 24-31
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Abstract

This study investigated the effects of flower and fruit thinning agents on fruit set and harvested fruit quality attributes in ‘Gamhong’ apples. Lime sulfur, MaxCel (1.9% BA), and Fruitone (3.5% NAA) were applied either at post-bloom or fruitlet stages to mature ‘Gamhong/M.9’ trees. In 2011, the numbers of fruits per cluster in terminal flowers were 1.74, 0.82, and 1.15 for the control, lime sulfur, and Maxcel (applied at 10-mm fruit stage) treatments, respectively. The percentages of single fruit per cluster were 36.0, 47.9, and 48.7% for the control, lime sulfur, and Maxcel (10 mm) treatments, respectively, while the percentages of clusters with three fruits per cluster were 22.9, 1.4, and 5.8%. In lateral flowers, fruit numbers per cluster were 1.20, 0.36, and 0.50 for the control, lime sulfur, and Maxcel (10 mm) treatments, respectively. In 2012, all the thinning treatments showed a positive effect on flower and fruit thinning, compared with the control. Moreover, the treatment with thinning agents did not affect fruit quality. Overall, the results suggest that a single application of flower or fruit thinning agents would be sufficient, rather than the mixed application of thinning agents, based on the observed decrease in fruit setting.

Keywords
benzyladenine
fruit set ratio
lateral flowers
lime sulfur
naphthaleneacetic acid
terminal flowers

본 연구는 2년에 걸쳐 ‘감홍’ 품종에 석회유황합제(Lime sulfur), MaxCel(1.9% BA), Fruitone(3.5% NAA)을 처리하여 적과와 과실품질에 미치는 영향을 조사하였다. 1차년도 약제 처리에 의한 과총당 착과수는 석회유황합제 3회 처리구는 0.82개, MaxCel(10mm) 처리구 역시 1.15개로 무처리구 1.74개에 비해 유의하게 적어 적과 효과가 인정되었다. 과총당 과실의 착과수 는 석회유황합제 또는 MaxCel(10mm) 처리 시 단일과 착과율이 각각 47.9%와 48.7%로 무처리 36.0%에 비하여 높았고, 3개 이상 과실 착과율이 각각 1.4%와 5.8%로 무처리 22.9%에 비해 낮아 좋은 적과 효과를 보였다. 액화아의 경우 석회유황합제 및 MaxCel(10mm) 처리구 0.36개와 0.50개로 무처리구 1.20개에 비하여 낮아 정화아에서와 비슷하게 우수한 적과 효과를 보였 다. 2년차 적과 효과는 무처리를 제외한 모든 처리구에서 높은 적과 효과를 보였고, 약제 처리가 과실품질에 미치는 영향은 없 었다. 따라서, 석회유황합제 또는M axCel 혼용처리보다 단용처리만으로도 착과수를 감소시키는데 효과가 있었다

키워드
benzyladenine
착과율
액화아
석회유황합제
naphthaleneacetic acid
정화아
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Information
  • Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
  • Publisher(Ko) :원예과학기술지
  • Journal Title :Horticultural Science and Technology
  • Journal Title(Ko) :원예과학기술지
  • Volume : 34
  • No :1
  • Pages :24-31
  • Received Date : 2015-08-05
  • Revised Date : 2015-10-13
  • Accepted Date : 2016-01-25
  • DOI :https://doi.org/10.12972/kjhst.20160006
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