Shoot Growth and Fruit Characteristics According to Bearing Branch Direction and Thickness in ‘Kawanakajima Hakuto’ Peach Trees

Seok Kyu Yun; Ik Koo Yoon; Eun Young Nam; Ji Hae Jun; Jung Hyun Kwon; Haejin Bae; Ho Cheol Kim; Tae-Choon Kim

doi:10.7235/hort.2014.13140

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2014 Vol.32, Issue 4 Next Page

Shoot Growth and Fruit Characteristics According to Bearing Branch Direction and Thickness in ‘Kawanakajima Hakuto’ Peach Trees 복숭아 ‘천중도백도’의 결과지 방향 및 굵기에 따른 신초 생장과 과실 특성

31 August 2014. pp. 421-426

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Abstract

To investigate the optimal size of fruit bearing branches (FBBs) of ‘Kawanakajima Hakuto’ peach (Prunus persica Batsch) for production of high quality fruits, we evaluated shoot growth and fruit characteristics relative to FBB direction and thickness. FBB diameter, shoot length, fruit weight, and soluble solids content (SSC) averaged 6.9 mm, 32.6 cm, 333.6 g, and 11.2 °Brix, respectively. Coefficients of variation of FBB diameter and shoot length were high as 35.8% and 75.3%. The highest frequency values revealed that 76.4% of FBBs had a diameter below 9.0 mm, 70.0% of shoot lengths were less than 40 cm, 24.8% of fruits were 310-340 g, and 66.9% of SSCs were 10.5-12.5 °Brix. Shoot length and SSC were significantly affected by FBB diameter without direction, and fruit weight was significantly affected by interaction of FBB diameter and direction. There was a negative correlation (r³ = 0.094*) of FBB diameter and fruit weight with upward FBB directions, whereas FBB diameter and fruit weight were positively correlated (r² = 0.246**) with downward FBB direction. With thick FBB diameter, shoot length, and SSC were significantly increased, but fruit weight was decreased. Therefore, downward FBBs below 9.0 mm in thickness are suitable for producing high-quality fruits of ‘Kawanakajima Hakuto’ peach.

Keywords

coefficient of variation

frequency distribution

Prunus persica

regression analysis

본 연구에서는 ‘천중도백도’ 복숭아(Prunus persica)의 고품질 다수확 생산을 하는데 적합한 결과지를 구명하기 위하여 몇 가지 결과지 방향 및 굵기 처리에 따른 신초장, 과중, 당도 등의 변화를 조사하였다. 각 조사항목의 평균치를 보면 결과지 직경의 경우 6.9mm, 신초장은 32.6cm, 과중은 333.6g, 당도는 11.2°Brix였으며, 결과지 직경과 신초장은 변이계수가 각각 35.8%와 75.3%로 높았다. 254개 결과지 및 과실 특성 중 직경 9.0mm 이하 결과지가 76.4%, 40cm이하 신초가 70.0%, 무게가 310-340g 과실이 24.8%, 그리고 당도가 10.5-12.5°Brix인 과실이 66.9%를 차지하였다. 신초장은 결과지 방향에 관계없이 결과지 굵기의 영향을 크게 받았고, 과중은 결과지 방향 및 굵기의 상호작용의 영향을 크게 받았다. 그리고 당도는 결과지 방향에 관계없이 결과지 굵기의 영향을 크게 받았다. 결과지 직경과 과중간 회귀분석 결과 하향 결과지에서는 정의 상관(r² = 0.246**)을 보였고 상향 결과지에서는 부의 상관(r³ = 0.094*)을 보였다. 따라서 고품질 ‘천중도백도’ 과실 생산을 위해서는 하향이면서 직경이 9.0mm 이하인 결과지를 활용하는 것이 좋을 것으로 판단된다.

키워드

변이계수

빈도분포

복숭아

회귀분석

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Information

Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
Publisher(Ko) :한국원예학회
Journal Title :Horticultural Science and Technology
Journal Title(Ko) :원예과학기술지
Volume : 32
No :4
Pages :421-426
Received Date : 2013-09-02
Revised Date : 2014-04-02
Accepted Date : 2014-04-02
DOI :https://doi.org/10.7235/hort.2014.13140

Horticultural Science and Technology 원예과학기술지 ISSN:1226-8763(Print) 2465-8588(Online)

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