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Expression of Pigments in Black Rice during Kernel Development
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  • Volume 57, Issue 2,  2012, pp.127-131
  • Publisher : The Korean Society of Crop Science
  • DOI : 10.7740/kjcs.2012.57.2.127
 Title & Authors
Expression of Pigments in Black Rice during Kernel Development
Lee, Jeom-Sig; Jang, Jae-Ki; Chun, A-Reum; Choung, Myoung-Gun; Kim, Hye-Won; Oh, Sea-Kwan; Lee, Jeong-Heui; Yoon, Mi-Ra; Kim, Dae-Jung; Song, You-Chun;
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In this study we examined the changes in expression of pigments in black rice during kernel development, which were sampled at 2~3-day intervals to the 40th day after flowering. The first expression of pigment on kernels was observed on the seed coat about 5 days after flowering. At that times, the ratio of pigment expression was 0.08% of total area. The order in expression of pigments in black rice during kernel development was top first, followed by bottom, dorsal side, then ventral side. Maximum percentage of the total colored area in kernel was about 25 days after flowering. After that, the color has changed to dark purple from pale purple during kernel development after flowering. After harvesting, the non-uniform color kernels were observed. As a result, the ventral side in a kernel was a position of the non-uniform color such as a mixture of pale purple and dark purple. Also, we could be concluded that patten of pigment expression was similar in kernel development.
pigments;black rice;grain development;anthocyanin;
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