우리나라 고품질 벼 품종의 쌀 품질 특성에 미치는 등숙기 단계별 기온과 일조시간의 영향

Woonho Yang; Kyung-Jin Choi; Jiyoung Shon; Shingu Kang; Seong-Hyu Shin; Kang-Bo Shim; Junhwan Kim; Hanyong Jung; Jung Hee Jang; Jeong-Su Jeong; Chae Young Lee; Yeo Tae Yun; Suk Ju Kwon; Kyu Nam An; Jong-Hee Shin; Sung Mun Bae

doi:10.7740/kjcs.2015.60.3.273

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2015 Vol.60, Issue 3 Preview Page Next Page

Original Research Article

우리나라 고품질 벼 품종의 쌀 품질 특성에 미치는 등숙기 단계별 기온과 일조시간의 영향 Effects of Temperature and Sunshine Hours During Grain Filling Stage on the Quality-Related Traits of High Quality Rice Varieties in Korea

30 September 2015. pp. 273-281

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Abstract

Relationship between grain quality-related traits and daily mean temperature/sunshine hours during grain filling stage was analyzed using eleven high quality rice varieties at 24 experimental sites through eight provinces of Korea in 2013~2014. In the data set pooled across varieties, experimental sites and years, grain quality-related traits such as percentage of head rice (PHR), head rice yield (HRY), protein in milled rice (PRO) and Toyo Mido Meter glossiness value (TGV) were higher at the temperature lower than 22.6°C for 40 days after flowering (DAF), which was optimum for percentage of grain filling in this study. Optimum sunshine hours for 40 DAF were 6.0~6.1 hr d^-1 when considered PHR, HRY and TGV. PRO was associated with daily mean temperature and sunshine hours for 40 DAF in more varieties than the other traits. PRO was closely correlated with daily mean temperature during early filling stage and sunshine hours during early to mid filling stage, compared to other stages during grain filling. It is concluded that general trendin the variation of grain quality-related traits could be explained by the changes in daily mean temperature and sunshine hours during grain filling. In addition, climate conditions during early grain filling stage played important roles to enhance grain quality.

Keywords

grain filling

grain quality

rice

sunshine hours

temperature

References

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Information

Publisher :The Korean Society of Crop Science
Publisher(Ko) :한국작물학회
Journal Title :The Korean Journal of Crop Science
Journal Title(Ko) :한국작물학회지
Volume : 60
No :3
Pages :273-281
Received Date : 2015-08-06
Revised Date : 2015-08-25
Accepted Date : 2015-08-31
DOI :https://doi.org/10.7740/kjcs.2015.60.3.273

The Korean Journal of Crop Science ISSN:0252-9777(Print) 2287-8432(Online) 한국작물학회지

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