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Development of Prediction Growth and Yield Models by Growing Degree Days in Hot Pepper

생육도일온도에 따른 고추의 생육 및 수량 예측 모델 개발

  • Kim, Sung Kyeom (Vegetable Research Division, National Institute of Horticultural & Herbal Science) ;
  • Lee, Jin Hyoung (Vegetable Research Division, National Institute of Horticultural & Herbal Science) ;
  • Lee, Hee Ju (Vegetable Research Division, National Institute of Horticultural & Herbal Science) ;
  • Lee, Sang Gyu (Vegetable Research Division, National Institute of Horticultural & Herbal Science) ;
  • Mun, Boheum (Vegetable Research Division, National Institute of Horticultural & Herbal Science) ;
  • An, Sewoong (Vegetable Research Division, National Institute of Horticultural & Herbal Science) ;
  • Lee, Hee Su (Vegetable Research Division, National Institute of Horticultural & Herbal Science)
  • 김성겸 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 이진형 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 이희주 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 이상규 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 문보흠 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 안세웅 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 이희수 (농촌진흥청 국립원예특작과학원 채소과)
  • Received : 2018.10.16
  • Accepted : 2018.10.29
  • Published : 2018.10.30

Abstract

This study was carried out to estimate growth characteristics of hot pepper and to develop predicted models for the production yield based on the growth parameters and climatic elements. Sigmoid regressions for the prediction of growth parameters in terms of fresh and dry weight, plant height, and leaf area were designed with growing degree days (GDD). The biomass and leaf expansion of hot pepper plants were rapidly increased when 1,000 and 941 GDD. The relative growth rate (RGR) of hot pepper based on dry weight was formulated by Gaussian's equation RGR $(dry\;weight)=0.0562+0.0004{\times}DAT-0.00000557{\times}DAT^2$ and the yields of fresh and dry hot pepper at the 112 days after transplanting were estimated 1,387 and 291 kg/10a, respectively. Results indicated that the growth and yield of hot pepper were predicted by potential growth model under plastic tunnel cultivation. Thus, those models need to calibration and validation to estimate the efficacy of prediction yield in hot pepper using supplement a predicting model, which was based on the parameters and climatic elements.

본 연구는 고추의 생육특성인 초장, 엽면적, 생체중, 건물중을 조사하였고, 기상요인에 따른 수량 예측 모델개발을 위하여 수행되었다. 생육도일온도에 따른 고추의 생체중, 건물중, 초장 및 엽면적에 대한 생장 모델(시그모이드 곡선)을 개발하였다. 고추는 정식 후 50일전후로 초장, 엽면적, 생체중 및 건물중이 지수 함수적으로 증가하였으며, 140일 이후에는 생장요인들이 평행을 이루었다. 그리고 생육도일온도에 따른 고추의 생장을 분석 한 결과 지수 함수적으로 생장이 늘어나는 시점의 GDD는 1,000였다. 고추의 건물중에 대한 상대생장 속도를 계산하는 식은 RGR $(dry\;weight)=0.0562+0.0004{\times}DAT-0.00000557{\times}DAT^2$ 였다. 수확한 적과의 생체중과 건물중으로 고추의 단수를 구하였을 때, 정식 후 112일에 1,3871kg/10a였고, 건고추의 단수는 정식 후 112일에 291kg/10a이였다. 고추 작황예측 프로그램 개발을 위해서는 고추의 생산성에 관여하는 주요요인을 분석하고, 실시간으로 계측한 생육 및 기상자료를 기반으로 하여 생육모델을 보정 및 검증해야 할 것이다.

Keywords

References

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