KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
권호 표지

Genetic Ana1ysis for Rice Grain Properties Using a Doubled Haploid Population

  • Qin, Yang (Department of Agronomy, Kyungpook National University) ;
  • Kim, Suk-Man (Department of Agronomy, Kyungpook National University) ;
  • Sohn, Jae-Keun (Department of Agronomy, Kyungpook National University)
  • Published : 2007.06.30
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Abstract

Demand for high quality rice has always been a major factor in the international rice marketing. In the present study, doubled haploid (DH) population derived from anther culture of a Tongil/japonica hybrid was used for genetic analysis of rice grain quality. The average values of DH lines for grain weight, grain length and the ratio of grain length to width were near the mid-parent value. More than 40% DH lines showed transgressive segregation for grain weight, length, amylose and lipid content, but less than 10% DH lines observed on ratio of length to width and grain thickness were transgressive segregation. Correlation analysis between appearance qualities and physicochemical characters indicated that grain width and grain thickness both significantly and negatively correlated to protein and lipid content. A highly significant negative correlation between protein content and amylose content was observed.

Keywords

References

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