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KMID : 1024520150240111547
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Journal of the Environmental Sciences
2015 Volume.24 No. 11 p.1547 ~ p.1550
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Predicting Harvest Maturity of the 'Fuji' Apple at the Gunwi Province of the South Korea using DTS Phenology Model
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Choi In-Tae
Shim Kyo-Moon
Kim Yong-Seok
Jung Myung-Pyo
Yun Kyung-Dahm
Kim Soo-Hyung
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Abstract
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Fuji apple variety introduced in Japan has excellent storage quality and good taste so it is most commonly cultivated in the Korean Peninsula. Accurate prediction of harvest maturity allows farmers to more efficiently manage their farm, such as working time, fruit storage, market shipment and labor distribution so it is very important. This study was carried out to predict the harvest maturity of 'Fuji' apple using DTS (Days Transformed to Standard temperature) model based on the Arrhenius law in the Gunwi province of the South Korea. Input data are daily average temperature and apple harvest maturity. Predicted the harvest maturity of Fuji apple after estimating the optimal parameters by using the Nelder-Mead method. The differences of observed and predicted harvest maturity day are approximately 1 to 4 days and the RMSE is 2.9.
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KEYWORD
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DTS model, Fuji, Harvest maturity, Phenology
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