Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Fruit Characteristics of New Cultivar 'Autumn sense' of Hardy Kiwi (Actinidia arguta) by Stem Pruning

전정에 의한 신품종 다래 '오텀센스'의 과실 특성

  • Kim, Chul-Woo (Division of Special-Purpose Trees, National Institute of Forest Science) ;
  • Kim, Mahn-Jo (Division of Special-Purpose Trees, National Institute of Forest Science) ;
  • Kim, Jae-Hee (Division of Special-Purpose Trees, National Institute of Forest Science) ;
  • Park, Youngki (Division of Special-Purpose Trees, National Institute of Forest Science)
  • 김철우 (국립산림과학원 특용자원연구과) ;
  • 김만조 (국립산림과학원 특용자원연구과) ;
  • 김재희 (국립산림과학원 특용자원연구과) ;
  • 박영기 (국립산림과학원 특용자원연구과)
  • Received : 2015.08.25
  • Accepted : 2016.01.28
  • Published : 2016.03.31
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Abstract

In this study, we examined the changes of fruit number and fruit weight according to the length of bearing branch of Actinidia arguta and identified the correlation the length of bearing branch and fruit characteristics. The fruit weight and the fruit number of A. arguta bearing branch which length are below 15 cm and over 30 cm were 11.7 g, 4.3 and 12.3 g, 13.8, respectively. From the results, the bearing brach which length was below 15 cm must be removed in winter season pruning. The pruning experiment was conducted to examine the effects on fruit quality and yield of A. arguta. Total fruit yield of heavy-pruning was $14.3{\pm}1.5kg/tree$. The production of fruits over 15 g wight was $8.2{\pm}0.9kg/tree$, that of fruits between 10 g to 15 g was $4.0{\pm}0.7kg/tree$, and that of fruit below 10 g was $2.1{\pm}0.3kg/tree$, respectively. Average fruit yield of nonpruning was $26.7{\pm}2.1kg/tree$, fruit yield over 15 g, between 10 g and 15 g, and below 10 g were $2.5{\pm}0.5kg/tree$, $19.2{\pm}1.4kg/tree$, and $5.0{\pm}0.6kg/tree$, respectively. Distribution of high quality fruit (over 15 g) showed that non-pruning was almost 15~16 g but pruning was evenly distributed between 15 g and 20 g. According to the survey, The high quality fruit (over 15 g) would not be harvested if the winter pruning is not applied in the A. arguta cultivation.

다래의 결과지 길이에 따른 다래 과실수와 과실무게를 조사하여 결과지와 과실특성과의 상관관계를 구명하고자 하였다. 다래의 결과지가 15 cm 이하와 30 cm 이상의 경우, 평균 무게와 평균과실수는 각각 11.7 g과 12.3 g 그리고 4.6개와 13.8개였다. 그 결과 15 cm 미만의 결과지는 불량한 과실특성결과를 가져오므로 동계전정시 제거하여야 한다. 전정이 다래 과실등급별 생산량에 미치는 영향을 알아보고자 전정실험을 실시하였다. 결과모지는 80개, 결과모지의 80%를 자르는 강전정 처리구에서는 과실 총 생산량이 본당 평균 $14.3{\pm}1.5kg$이었으며, 이중 대과(15 g 이상)이 $8.2{\pm}0.9kg$, 중과(10~15 g)이 $4.0{\pm}0.7kg$ 그리고 소과(10 g 이하)이 $2.1{\pm}0.3kg$ 생산되었다. 무처리구에서는 과실 총 생산량이 본당 평균 $26.7{\pm}2.1kg$이었으며, 이중 대과는 $2.5{\pm}0.5kg$, 중과 $19.2{\pm}1.4kg$ 그리고 소과 $5.0{\pm}0.6kg$ 생산되었다. 특히, 전정처리구와 무처리구에서 15 g 이상 대과의 무게분포를 보면 무처리구는 대부분 15~16 g의 과실이 분포하였으나, 전정처리구는 15~20 g 이상까지 고르게 분포하는 것으로 나타났다. 전정을 실시하지 않는 경우 15 g 이상의 대과 생산이 쉽지 않을 것으로 판단되며, 생과용 대과 및 특과 생산을 위해서는 적절한 동계전정이 필요하다.

Keywords

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