Selection of Main Air Temperature Factors on Annual Variation of Growth and Fruit Characteristics of Persimmon

감나무 생육 및 과실 특성의 연차 변이에 대한 주요 기온 요인 추출

  • Jeon, Kyung-Soo (Department of Environment Landscape Architecture, Wonkwang University) ;
  • Kim, Ho-Cheol (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University) ;
  • Han, Jeom-Hwa (National Institute of Horticultural & Herbal Science) ;
  • Kim, Tae-Choon (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
  • 전경수 (원광대학교 환경조경학과) ;
  • 김호철 (원광대학교 원예.애완동식물학부) ;
  • 한점화 (국립원예특작과학원) ;
  • 김태춘 (원광대학교 원예.애완동식물학부)
  • Received : 2010.09.02
  • Accepted : 2010.09.24
  • Published : 2010.09.30

Abstract

This experiment was conducted to select the affected main factors on growth and fruit characteristics of 'Fuyu' persimmon (Diospyros kaki Thunb.) in 25 factors of air temperature factors in Naju. Mean air temperature, cumulative temperature and days for March and April of 25 factors were the highest annual variation. Number of the first and second principal components extracted from 25 air temperature factors were 14 and 3 factors related with mean temperature for annul and April, and cumulative contribution of these was 52.2%. Also the affected years by the first principal components were 1990, 1980 and 1986. Annual standard deviation on leafing, flowering and maturing date were 4.0~6.7 days range, and flowering date and days from leafing to flowering had the highest coefficient of variation. Annual variation of days from flowering to maturing date was affected by greatly mean air temperature and days of cumulative temperature in October, days from March 1 to leafing date was affected by cumulative temperature for growing period, days from leafing to flowering date was affected by mean air temperature in April. Annual variation of fruit weight was affected by mean air temperature for March and October.

본 연구는 감나무 생육 및 과실 특성의 연차 변이에 대한 주요 기온 요인을 알아보고자 수행하였다. 연차 변이는 3월과 4월의 평균기온, 적산일수 빛 적산온도에서 가장 컸다. 25개 기온 요인 중 제1주성분으로는 연 평균 기온 요인들 14개, 제2주성분으로는 4월 기온요인들 3개로 추출되었으며 그 누적 기여율은 52.2%이었다. 제1주성분에 양의 영향력을 크게 받은 연도는 1990년, 음의 영향력을 크게 받은 연도는 1980년과 1986년으로 나타났다. 감나무의 전엽일, 개화일 및 과실 성숙일의 연간 편차는 4.0~6.7일 범위였으며 변이계수는 개화일, 전엽일에서 개화일까지의 일수가 가장 켰다. 그리고 파실 특성 중 과중, 당도, 경도는 연차 변이가 적었으나, 종자수는 평균 4.0개, 연간 편차 1.3개, 변이계수가 32.8로 연차 변이가 가장 컸다. 감나무 생육 및 과실 특성과 기온 요인들 간 다중회귀분석 결과, 개화일에서 과실 성숙일까지의 일수는 10월의 평균기온 및 적산일수, 전엽일에서 개화일까지의 일수는 4월 평균기온, 과중은 3월 평균기온과 10월 평균기온의 영향을 가장 크게 받은 것으로 나타났다.

Keywords

References

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