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2014 Vol.32, Issue 6 Preview Page
Photosynthesis, Shoot Growth and Fruit Quality in ‘Fuji’/M.9 Mature Apple Trees in Response to Prohexadione-calcium Treatments

Prohexadione-calcium 처리에 따른 성목기 ‘후지’/M.9 사과나무의 광합성, 신초생장 및 과실품질

Dong-Hoon Sagong12
,
Yang-Yik Song3
,
Moo-Yong Park3
,
Hun-Joong Kweon3
,
Mok-Jong Kim4
,
Tae-Myung Yoon5*
사공 동훈12
,
송 양익3
,
박 무용3
,
권 헌중3
,
김 목종4
,
윤 태명5*
1Department of Horticulture, Daegu University
2Institute of Life and Environment, Daegu University
3Apple Research Station, National Institute of Horticultural & Herbal Science, Rural Development Administration
4Namhae Sub-Station, National Institute of Horticultural & Herbal Science, Rural Development Administration
5Department of Horticultural Science, Kyungpook National University
1대구대학교 원예학과
2대구대학교 생명환경연구소
3농촌진흥청 국립원예특작과학원 사과시험장
4농촌진흥청 국립원예특작과학원 남해출장소
5경북대학교 원예과학과
*교신저자. *Corresponding Author. 
31 December 2014. pp. 762-770
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Abstract

This study was conducted to elucidate the influence of prohexadione-calcium (Pro-Ca) application on shoot growth and fruit quality in ‘Fuji’/M.9 mature apple trees. Pro-Ca was applied at concentrations ranging from 100 to 400 mg･L-1 one time at petal fall (PF; 5-10 cm terminal shoot growth) to the whole canopy of the tree, or at 100, 125, 150 mg･L-1 concentrations two times, at PF and then 4-8 weeks after PF. Pro-Ca treatment generally reduced mean shoot growth, with its effect being proportional to the application rate. Pro-Ca at 400 mg･L-1 significantly reduced the shoot growth by 15-22% compared to the control, while its effect was not significantly different from Pro-Ca 200 mg･L-1. Pro-Ca treatments induced higher occurrence of secondary growth compared to the control. Pro-Ca treatment increased the photosynthetic rate by 5-10% relative to the control, and also increased soluble solid concentration and fruit red color. However, fruit weight was significantly reduced by 400 mg･L-1 Pro-Ca, which was attributable to the greater secondary growth caused Pro-Ca 400 mg･L-1 treatment compared to the control and Pro-Ca 200 mg･L-1 treatment.

Keywords
fruit red color
fruit weight
Malus domestica Borkh.
secondary shoot growth
specific leaf weight

본 시험은 prohexadione-calcium(Pro-Ca) 살포가 성목기 ‘후지’/M.9 사과나무의 신초생장 및 과실품질에 미치는 영향을 구명하고자 실시하였다. Pro-Ca은 100-400mg･L-1 농도로 정단신초 길이가 5-10cm 정도 생장한 낙화기에 1회 수관전체 살포하거나 혹은 100, 125, 150mg･L-1 농도로 낙화기와 낙화 후 4-8주 경에 2회 살포하였다. 일반적으로 Pro-Ca 처리는 평균 신초장을 감소시켰으며, 그 정도는 처리농도에 비례하였다. 무처리에 비해 Pro-Ca 400mg･L-1 처리는 평균 신초장을 15-22% 정도 감소시켰으나, Pro-Ca 200mg･L-1 처리와는 차이가 없었다. 신초의 2차 생장발생률은 Pro-Ca 처리구가 무처리보다 높았다. 무처리에 비해 Pro-Ca 처리는 광합성속도를 5-10% 정도 향상시켰고, 또한 가용성 고형물 함량과 착색을 증진시켰다. 그러나 400mg･L-1 처리는 과중을 유의하게 감소시켰는데, 이는 Pro-Ca 400mg･L-1 처리구의 신초 2차 발생률이 무처리 및 Pro-Ca 200mg･L-1 처리구보다 높았기 때문이었다.

키워드
착색
과중
Malus domestica Borkh.
2차 신초생장
비엽중
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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 : 32
  • No :6
  • Pages :762-770
  • Received Date : 2013-01-23
  • Revised Date : 2014-05-13
  • Accepted Date : 2014-07-03
  • DOI :https://doi.org/10.7235/hort.2014.13019
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