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2024 Vol.37, Issue 1 Preview Page
Comparison of Flower Thinning Efficiency of Lime-sulfur on Korean Major Pear (Pyrus pyrifolia Nakai) Cultivars

석회유황합제 처리에 의한 국내 주요 배 품종별 적화 반응 비교

Byeong Hyeon Yun1*
,
Ji Hae Jun2
,
Il-Sheob Shin3
,
Hyun Ran Kim2
,
Kang Hee Cho4
,
Jae Hoon Jeong1
,
Se Hee Kim1
,
Sang-Yun Cho1
,
Sewon Oh5
윤 병현1*
,
전 지혜2
,
신 일섭3
,
김 현란2
,
조 강희4
,
정 재훈1
,
김 세희1
,
조 상윤1
,
오 세원5
1Researcher, Fruit Research Division, National Institute of Horticultural & Herbal Science, Wanju 55365, Korea
2Senior Researcher, Fruit Research Division, National Institute of Horticultural & Herbal Science, Wanju 55365, Korea
3Senior Researcher, Pear Research Institute, National Institute of Horticultural & Herbal Science, Naju 55365, Korea
4Senior Researcher, R&D Planning Division, Rural Development Administration, Jeonju 54875, Korea
5Post-doc, Fruit Research Division, National Institute of Horticultural & Herbal Science, Wanju 55365, Korea
1농촌진흥청 국립원예특작과학원 과수과, 농업연구사
2농촌진흥청 국립원예특작과학원 과수과, 농업연구관
3농촌진흥청 국립원예특작과학원 배연구소, 농업연구관
4농촌진흥청 연구정책국 연구개발과, 농업연구관
5농촌진흥청 국립원예특작과학원 과수과, 박사후연구원
*Corresponding Author
1 February 2024. pp. 62-70
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Abstract

Fruit thinning rate and characteristics were investigated for three years on seven promising pear (Pyrus pyrifolia Nakai) cultivars, which were treated by lime-sulfur as an eco-chemical thinning substance. Lime-sulfur was treated twice at the second and third days after full bloom by cultivar. Most of pear cultivars were significantly thinned by lime-sulfur compounds. Especially ‘Whangkeumbae’, ‘Supergold’ and ‘Hanareum’ exhibited high flower thinning rates, 41.5%, 40.1% and 39.9%, respectively. As weather conditions at the lime-sulfur treatment, insolation and cloud amount were correlated with flower thinning rate but not significant (r = 0.49 and r = -0.45, respectively). These results suggest that lime-sulfur is suitable for reducing labor force for flower thinning of Korean pears but flower thinning effects of lime-sulfur can vary depending on other factors such as environmental conditions. This information will provide useful data for low labor force cultivation of Korean pear cultivars.

Keywords
Chemical
Cultivar
Fruiting rate
Low-labor
Weather condition
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 37
  • No :1
  • Pages :62-70
  • Received Date : 2023-08-18
  • Revised Date : 2023-11-30
  • Accepted Date : 2023-12-14
  • DOI :https://doi.org/10.7732/kjpr.2024.37.1.062
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