Proceedings of the Korean Society of Crop Science Conference (한국작물학회:학술대회논문집)
- 2017.06a
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- Pages.354-354
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- 2017
Evaluation of the relationship between growing temperature and grain yield components across years in two japonica rice varieties in Korea
- Kang, Shingu (National Institute of Crop Science, RDA) ;
- Cho, Hyeoun-Suk (National Institute of Crop Science, RDA) ;
- Yang, Chang-Ihn (National Institute of Crop Science, RDA) ;
- Kim, Jeong-Ju (National Institute of Crop Science, RDA) ;
- Kim, Sookjin (National Institute of Crop Science, RDA) ;
- Choi, Jongseo (National Institute of Crop Science, RDA) ;
- Park, Jeong-hwa (National Institute of Crop Science, RDA) ;
- Yang, Woonho (National Institute of Crop Science, RDA)
- Published : 2017.06.04
Abstract
Rice grain yield is determined by crop dry matter production that is sensitive to temperature. Our objective was to determine whether the difference in temperature between years had an impact on the relationship between yield components and grain yield. Field experiments were conducted under machine transplanting cultivation by using yield data of two japonica rice varieties, Odaebyeo (early maturing) and Nampyeong (mid-late maturing), in 2013 to 2016 in Suwon, Korea. Plant height, dry weight, and yield components were examined by analysis of variance, correlation. The milled rice yield of the two varieties were the highest in 2016, however the lowest yields were observed in the different years. In 2016, Odaebyeo produced