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http://dx.doi.org/10.5532/KJAFM.2017.19.4.203

Exploring Ways to Improve the Predictability of Flowering Time and Potential Yield of Soybean in the Crop Model Simulation  

Chung, Uran (Climate Application Department, Climate Application Team, APEC Climate Center)
Shin, Pyeong (Climate Change Assessment Research Lab., National Institute of Crop Science, RDA)
Seo, Myung-Chul (Climate Change Assessment Research Lab., National Institute of Crop Science, RDA)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.19, no.4, 2017 , pp. 203-214 More about this Journal
Abstract
There are two references of genetic information in Korean soybean cultivar. This study suggested that the new seven genetic information to supplement the uncertainty on prediction of potential yield of two references in soybean, and assessed the availability of two references and seven genetic information for future research. We carried out evaluate the prediction on flowering time and potential yield of the two references of genetic parameters and the new seven genetic parameters (New1~New7); the new seven genetic parameters were calibrated in Jinju, Suwon, Chuncheon during 2003-2006. As a result, in the individual and regional combination genetic parameters, the statistical indicators of the genetic parameters of the each site or the genetic parameters of the participating stations showed improved results, but did not significant. In Daegu, Miryang, and Jeonju, the predictability on flowering time of genetic parameters of New7 was not improved than that of two references. However, the genetic parameters of New7 showed improvement of predictability on potential yield. No predictability on flowering time of genetic parameters of two references as having the coefficient of determination ($R^2$) on flowering time respectively, at 0.00 and 0.01, but the predictability of genetic parameter of New7 was improved as $R^2$ on flowering time of New7 was 0.31 in Miryang. On the other hand, $R^2$ on potential yield of genetic parameters of two references were respectively 0.66 and 0.41, but no predictability on potential yield of genetic parameter of New7 as $R^2$ of New7 showed 0.00 in Jeonju. However, it is expected that the regional combination genetic parameters with the good evaluation can be utilized to predict the flowering timing and potential yields of other regions. Although it is necessary to analyze further whether or not the input data is uncertain.
Keywords
soybean; genetic characteristics; crop model; uncertainty; climate change;
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Times Cited By KSCI : 8  (Citation Analysis)
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