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http://dx.doi.org/10.5532/KJAFM.2020.22.4.239

Predicting the Pre-Harvest Sprouting Rate in Rice Using Machine Learning  

Ban, Ho-Young (Division of Crop Physiology and Production, National Institute of Crop Science, Rural development Administrarion)
Jeong, Jae-Hyeok (Division of Crop Physiology and Production, National Institute of Crop Science, Rural development Administrarion)
Hwang, Woon-Ha (Division of Crop Physiology and Production, National Institute of Crop Science, Rural development Administrarion)
Lee, Hyeon-Seok (Division of Crop Physiology and Production, National Institute of Crop Science, Rural development Administrarion)
Yang, Seo-Yeong (Division of Crop Physiology and Production, National Institute of Crop Science, Rural development Administrarion)
Choi, Myong-Goo (Division of Crop Physiology and Production, National Institute of Crop Science, Rural development Administrarion)
Lee, Chung-Keun (Division of Crop Physiology and Production, National Institute of Crop Science, Rural development Administrarion)
Lee, Ji-U (Grain Research Division, Gangwondo Agricultural Research and Extension Services)
Lee, Chae Young (Grain Research Division, Chungcheongbuk-do Agricultural Research and Extension Services)
Yun, Yeo-Tae (Grain Research Division, Chungcheongnam-do Agricultural Research & Extension Services)
Han, Chae Min (Grain Research Division, Gyeongsangbuk-do Agricultural Research & Extension Services)
Shin, Seo Ho (Food crop research center, Jeollanamdo Agricultural Research & Extension Services)
Lee, Seong-Tae (Grain Research Division, Gyeongsangnam-do Agricultural Research & Extension Services)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.22, no.4, 2020 , pp. 239-249 More about this Journal
Abstract
Rice flour varieties have been developed to replace wheat, and consumption of rice flour has been encouraged. damage related to pre-harvest sprouting was occurring due to a weather disaster during the ripening period. Thus, it is necessary to develop pre-harvest sprouting rate prediction system to minimize damage for pre-harvest sprouting. Rice cultivation experiments from 20 17 to 20 19 were conducted with three rice flour varieties at six regions in Gangwon-do, Chungcheongbuk-do, and Gyeongsangbuk-do. Survey components were the heading date and pre-harvest sprouting at the harvest date. The weather data were collected daily mean temperature, relative humidity, and rainfall using Automated Synoptic Observing System (ASOS) with the same region name. Gradient Boosting Machine (GBM) which is a machine learning model, was used to predict the pre-harvest sprouting rate, and the training input variables were mean temperature, relative humidity, and total rainfall. Also, the experiment for the period from days after the heading date (DAH) to the subsequent period (DA2H) was conducted to establish the period related to pre-harvest sprouting. The data were divided into training-set and vali-set for calibration of period related to pre-harvest sprouting, and test-set for validation. The result for training-set and vali-set showed the highest score for a period of 22 DAH and 24 DA2H. The result for test-set tended to overpredict pre-harvest sprouting rate on a section smaller than 3.0 %. However, the result showed a high prediction performance (R2=0.76). Therefore, it is expected that the pre-harvest sprouting rate could be able to easily predict with weather components for a specific period using machine learning.
Keywords
Pre-harvest sprouting rate; Machine learning; Rice; Weather components; Prediction;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
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