KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
권호 표지

Changes of Milling Quality of Rice Varieties According to the Transplanting Time and Good Resources with High Milling Quality in Yeongnam Plain Paddy

영남평야지에서 벼 이앙시기에 따른 도정특성 변화와 도정특성 유망 유전자원 탐색

  • 김춘송 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 이종희 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 곽도연 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 전명기 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 강종래 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 여운상 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 신문식 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 오병근 (농촌진흥청 국립식량과학원 기능성작물부)
  • Published : 2008.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

We carried out this study to analyze changes of rice grain milling properties according to the transplanting time and to identify genetic resources suitable for improving milling quality of rice in paddy field of Yeongnam area. We analyzed grain filling and milling quality of 30 rice varieties. In late transplanting (June 20), heading date was delayed for 6 days, compared to normal transplanting(June 5). The grain filling ratio (GFR), perfect kernel ratio of milled rice (PKR), and head rice recovery (HRR) were improved in late transplanting. There was no significant difference in head rice yield of two transplanting time, even though the milled rice yield in late transplanting was significantly smaller than that in normal transplanting because of the reduction of spikelet numbers per panicle. The uniformity of brown rice grain measured by selection sieve norm was improve in late transplanting. There was no significant difference of milling loss ratio between normal and late transplanting but there was a trend for a increase of milling necessary time in late transplanting. Thus, our result suggest that optimum transplanting time is June 10 to 15 to improve grain filling and milling quality and produce high head rice yield in the southern paddy plain of Yeongnam region. We selected promising 9 rice varieties which are Nampyeongbyeo, Ilmibyeo, Chucheongbyeo, Dongjinbyeo, Hopyeongbyeo, Malguemi, Chilbo, Hinohikari, and Cheongmu having high percentage of ripened grain and milling quality as genetic resources to improve milling characteristics of rice varieties. Chucheongbyeo, Dongjinbyeo, and Malguemi showed the highest grain filling ratio and Nampyeongbyeo had the highest perfect kernel ratio. Nampyeongbyeo and Ilmibyeo showed the highest head rice yield with more than 500 kg/10a.

본 연구는 30개의 고품질 벼 품종을 공시하여 영남 남부 평야지에서 이앙시기의 차이가 도정특성에 미치는 영향을 살펴보고, 우리나라에서 재배되는 고품질 벼 품종 중에서 도정특성이 우수한 유전자원을 탐색하고자 수행하였으며, 그 결과는 다음과 같다. 1. 만기(6월 20일) 이앙시 보통기 이앙에 비하여(6월 5일) 출수가 6일 늦어지면서 등숙율과 백미 완전립비율, 완전미 도정수율이 증가하여 수당립수의 감소에 따른 쌀수량의 차이가 컸음에도 불구하고 완전미 쌀수량은 유의적인 차이가 없었다. 2. 현미 선별체를 이용한 현미립의 두께에 따른 분포특성은 보통기 이앙에 비하여 만기 이앙에서 $1.6{\sim}1.9\;mm$ 두께의 현미립이 줄고, 1.9 mm 이상 두께의 현미립이 증가하여 균일도가 향상되었다. 3. 보통기와 만기 이앙간에 도정 손실율의 차이는 없었으나, 도정에 소요되는 시간이 만기 이앙에서 증가하였다. 4. 도정특성이 우수한 유망유전자원으로 남평벼, 일미벼, 추청벼, 동진벼, 호평, 말그미, 칠보, 히노히까리, 청무 등 9품종을 선정하였다. 5. 등숙율은 추청벼, 동진벼, 밀양 205호가 90% 이상으로 가장 양호 하였으며, 백미 완전립비율은 남평벼가 95%로서 가장 좋았고, 완전미 쌀수량은 남평벼와 일미벼가 500 kg/10a 이상으로 가장 높았다.

Keywords

References

  1. Choi, S. I. 1989. Physiological and ecological response of agronomic characters related to source and sink in rice. Korean J. Crop Sci. 34(3) : 239-245
  2. Chung, N. J., J. H. Park, K. J. Kim, and J. K. Kim. 2005. Effect of head rice ratio on rice palatability. Korean J. Crop Sci. 50(S) : 29-32
  3. Geng, S., J. F. Williams, and J. E. Hill. 1984. Harvest moisture effects on rice milling quality. Calif. Agric. 38 : 11-12
  4. Goodman, D. E. and R. M. Rao. 1985. Effect of grain type and milled rice kernel hardness on the head rice yields. J. Food Sci. 50 : 840-842
  5. Goodman, D. E., 1981. Development and experimental validation of predictive models for puff ability of gelatinized rice. PhD Dissertation, Louisiana State University, Baton Rouge
  6. Jongkaewwattana, S. and S. Geng. 2001. Inter-relationships amongst grain characteristics, grain-filling parameters and rice (Oryza sativa L.) milling quality. J. Agron. Crop Sci. 187 : 223-229
  7. Jongkaewwattana, S. and S. Geng. 2002. Non-uniformity of grain characteristics and milling quality of California rice (Oryza sativar L.) of different maturities. J. Agron. Crop Sci. 188 : 161-167
  8. Jongkaewwattana, S., S. Geng., J. E. Hill, and B. C. Miller. 1993. Within-panicle variability of grain filling in rice cultivars with different maturities. J. Agron. Crop Sci. 171: 236-242
  9. Kim, B. K. 2003. Analysis of primary and secondary rachis branches characters for promotion of ripened grain ratio and their inheritance in japonica rice (Oryza sativa L.). Ph.D. Thesis, Chungnam National University
  10. Kim, C. S., J. S. Lee, J. Y. Ko, E. S. Yun, U. S. Yeo, J. H. Lee, D. Y. Kwak, M. S. Shin, and B. G. Oh. 2007. Evaluation of optimum rice heading period under recent climatic change in Yeongnam area. Korean J. Agricultural and Forest Meteorology 9 : 17-28
  11. Kim K. J., H. C. Hong, Y. P. Jeong, T. Y. Kim, J. R. Son, H. G. Hwang, H. C. Choi, and Y. K. Min. 2003. Milling characteristics and milled rice quality of rice varieties with different grain size shape. J. Korean Soc. Agric. Chem. Biotechnol. 46(1) : 46-49
  12. Nakatat, S. and B. R. Jackson. 1973. Inheritance of some physical grain quality characteristics in a cross between a Thai and Taiwanese rice. Thai J. Agric. Sci. 6 : 223-235
  13. Rural Development Administration. 2003. Survey standard of agriculture experiment. Suwon, Korea
  14. Venkateswarlu, N., B. S. Vergara, R. T. Parao, and R. M. Visperas. 1986. Enhanced grain yield potential by increasing the number of high density grains. Philippines J. Crop Sci. 11 : 145-152
  15. Yeongnam Agricultural Research Institute. 2006. Research plan 2006. YARI, Milyang, Korea