Korean Journal of Breeding Science (한국육종학회지)

The Korean Society of Breeding Science (한국육종학회)
권호 표지

Characteristics Variation of Amylogram Properties by the Rapidity of Grain Filling in Rice Recombinant Inbred Line's Populations

벼 재조합자식계통의 초기급속등숙 속도에 따른 아밀로그램 특성변이

  • Kwak, Tae Soon (College of Life Science and Natural Resources, Sangji University)
  • 곽태순 (상지대학교 생명자원과학대학)
  • Received : 2008.09.18
  • Published : 2008.09.10
⟨ Previous Next ⟩

Abstract

Amylogram properties such as peak viscosity, hot viscosity, cool viscosity, breakdown, pasting consistency and setback were investigated by the Rapid Visco Analyzer and interpreted by the relationship among amylogram properties according to the varietal groups classified by the rapidity of grain filling (RGF) which was calculated by the percentage of grain weight at 15 days after heading to 40 days after heading. The 164 rice recombinant inbred lines from the cross of Milyang23 and Gihobyeo were used to get the basic information regarding the amylogram properties. The used recombinant inbred lines could be grouped into 4 varietal groups such as slow maturing (less than 40% of RGF), mid-slow maturing (41-60% of RGF),mid-fast maturing (61-80% of RGF), and fast maturing (more than 81% of RGF) groups based on the RGF. The peak viscosity and setback showed regular tendency according to the varietal groups classified by the RGF. Positive significant correlations were found between pasting consistency and setback, however negative significant correlations were found between breakdown and setback in all varietal groups.

밀양 23호와 기호벼의 재조합 자식 164계통에 대하여 Rapid Visco Analyzer(RVA)방법으로 분석한 아밀로그램특성을 출수 후 15일째의 이삭무게를 출수 후 40일째의 이삭무게 비율로 계산한 초기급속등숙속도(rapidity of grain filling:RGF)품종군별로 호화온도, 최고점도, 최저점도, 최종점도, 강하점도, 응집점도 및 취반점도를 해석하였고 품종군별 아밀로그램특성간 상관관계를 분석하였다. 사용한 164 M/G RILs를 RGF에 따라서 완만등숙형(40%이하의 RGF), 준완만등숙형(41- 60% RGF), 준급속등숙형(61-80%RGF), 그리고 급속등숙형(81%이상 RGF)으로 구분되었으며 최고점도, 최저점도 및 취반점도는 RGF품종군별 일정한 경향을 보였다. 초기급속등숙속도를 기준으로 분류한 모든 품종군에서 강하점도와 취반점도는 고도의 부의 상관을 보였고 응집점도와 취반점도는 고도의 정의 상관을 보였다.

Keywords

Acknowledgement

Supported by : 상지대학교

References

  1. Juliano BO. 1985. Criteria and tests for rice grain qualities. Rice Chemistry and Technology:443-524
  2. Kim KH, CY Cho, HP Moon, and HC Choi.1994. Breeding strategy for improvement and diversification of grain quality in rice. Korean J. of Breeding. Vol. 26(S):1-15
  3. Kim KH, and HC Choi. 1994. Crop breeding for quality improvement. Commemoration research papers for RK Park retirement pp. 57-80
  4. Kwak TS.1998. Classification of Korean local and Chinese rice varieties based on the grain filling rapidity. Korean J. of Breeding. Vol. 30(3):221-226
  5. Kwak TS, and HC Choi. 1999. Variation of major visual characteristics of grain in rice varietal groups classified by rapidity of grain filling. Korean J. of Breeding. Vol. 31(1):1-6
  6. Kwak TS. 2005. Comparison of amylogram properties among several sub-species of rice. Korean J. of Crop Science. Vol. 50(3):186-190
  7. Lim SJ, DU Kim, JK Sohn and SK Lee. 1995. Varietal variation of amylogram properties and its relationship with other eating quality characteristics in rice. Korean J. of Breeding. Vol.27(3):268-275
  8. Suzuki H. 1979. Amylography and alkali viscography of rice. Proceeding of the workshop on chemical aspects of rice grain quality. IRRI. Philippines: pp. 261-282