Korean Journal of Agricultural and Forest Meteorology (한국농림기상학회지)

Korean Society of Agricultural and Forest Meteorology (한국농림기상학회)
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Effect of Weather Conditions on Fruit Characteristics and Yield of 'Sangjudungsi' Persimmon Cultivar in Sangju, Gyeongsangbuk-do

경상북도 지방의 기상환경 변화에 따른 상주둥시 감나무의 과실특성 및 수확량

  • Park, Yunmi (Division of Special-purpose Trees, Korea Forest Research Institute) ;
  • Kim, Mahn-Jo (Division of Special-purpose Trees, Korea Forest Research Institute) ;
  • Park, Sang-Byeong (Division of Special-purpose Trees, Korea Forest Research Institute) ;
  • Oh, Sung-Il (Division of Special-purpose Trees, Korea Forest Research Institute)
  • 박윤미 (국립산림과학원 특용자원연구과) ;
  • 김만조 (국립산림과학원 특용자원연구과) ;
  • 박상병 (국립산림과학원 특용자원연구과) ;
  • 오성일 (국립산림과학원 특용자원연구과)
  • Received : 2015.09.11
  • Accepted : 2015.12.03
  • Published : 2015.12.30
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Abstract

This study was conducted to analyze the relationship between climate factors and fruit characteristics of 'Sangjudungsi' persimmon (Diospyros kaki THUNB) has been mainly cultivated in Sangju of Korea. We has been surveyed the yield and fruit characteristics such as fruit weight and soluble solids of 'Sangjudungsi' persimmon from 2010 to 2015 for five years. Also, as major meteorological factor, mean air temperature, cumulative temperature and days, the data of sunshine duration, diurnal range, and rainfall were collected from Sangju Regional Meteorological Administration. As result of that, the annual variation of fruit weight was affected by sunshine duration for April and October related starting point of fruit weight increase. The content of soluble solids was affected by sunshine duration for April and October similarly with fruit weight and was negatively correlated with the number of days with precipitation in the year. These results indicate the characteristics related to fruit quality like the above were affected by the sunshine duration and precipitation which is critical factor for the intensity of radiation during rapid growth period (April and October). Fruit number and yield per tree was commonly affected by mean air temperature of April and cumulative temperature days of October. These results also indicate that temperature for period of rapid growth stage of persimmon may have an important role in the fruit number and yield per tree.

본 연구는 국내 상주지역에서 주로 재배되고 있는 상주둥시를 대상으로 2010년부터 2015년까지 5년간 과실 특성 및 수확량에 영향을 미치는 기상요인을 구명하기 위해 수행되었다. 분석에 사용된 기상환경 요인으로는 5년간 월별 평균기온, 적산온도 및 일 수, 일조시간, 일교차, 강수량 등이 포함되었다. 과실 특성과 기상환경 요인간의 상관분석을 실시한 결과, 과실 과중에 가장 큰 영향을 미쳤던 기상요인은 생육이 시작되는 시기인 4월과 무게 증가시기인 10월의 일조시간이었다. 당도의 경우는 연 강수일수와 통계적으로 유의하게 음의 상관관계를 보였으며, 과중과 마찬가지로 4월, 10월의 일조시간과 정의 상관관계를 보였다. 본당 총착과량과 수확량의 경우는 공통적으로 4월의 평균기온이 높을 수록, 10월의 적산일수가 많을 수록 많은 경향을 보였다. 따라서 과실 품질과 수확량 모두 생육이 시작되는 4월과 10월의 온도와 일조시간에 큰 영향을 받는 것으로 나타났다.

Keywords

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