Effect of Low Radiation During Grain Filling Stage on Rice Yield and Grain Quality

Ki-Young Kim; Jong-Cheol Ko; Woon-Cheol Shin; Hyun-Su Park; Man-Kee Baek; Jeong-Kwon Nam; Bo-Kyeong Kim; Jeom-Ho Lee

doi:10.7740/kjcs.2014.59.2.174

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Original Research Article

Effect of Low Radiation During Grain Filling Stage on Rice Yield and Grain Quality 등숙기 일사 저하가 쌀 수량 및 품질에 미치는 영향

30 June 2014. pp. 174-180

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Abstract

This study was conducted to know the effect of low radiation during grain filling stage of rice on its grain yield, components, physicochemical properties and palatability, compared to the effect of natural light. Ripened grain ratio, 1000 grain weight of brown rice, milled rice yield of Mipum, Hopum, and Sindongjin were reduced as the shading treatments become higher. After harvest, physicochemical properties of rice influencing eating quality were investigated. Protein content of milled rice was increased, but palatability was decreased by shading treatments. Change of milled rice proteins and palatability due to shading treatments were found to be less in Mipum than that in Hopum and Sindongjin. With regard to amylogram properties, shading treatments resulted in a significant decrease in peak∙trough∙final∙breakdown viscosities of rice flour, though it increased pasting temperature and setback viscosity. The degree of the 55% shading effect was more intensive than the 35% shading effect in changes of ripened grain ratio, 1000 grain weight of brown rice, milled rice yield and milled rice protein.

Keywords

rice

low radiation

grain filling stage

yield

grain quality

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 : 59
No :2
Pages :174-180
Received Date : 2014-02-24
Revised Date : 2014-05-12
Accepted Date : 2014-05-14
DOI :https://doi.org/10.7740/kjcs.2014.59.2.174

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

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