한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)
- 제51권spc1호
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- Pages.58-66
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- 2006
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
밀양23호와 기호벼 교잡 재조합자식계통(RILs)의 품질관련 특성 변이
Variability of Quality Related Characters in the Recombinant Inbred Lines from Milyang 23 and Gihobyeo
- Kang, Hyeon-Jung (Honam Agricultural Research Institute, NICS, RDA) ;
- Kim, Young-Doo (Honam Agricultural Research Institute, NICS, RDA) ;
- Kim, Hyun-Soon (Rural Development Administration) ;
- Lee, Young-Tae (National institute of Crop Science, RDA) ;
- Eun, Moo-Young (National Institute of Agricultural Biotechnology, RDA)
- 발행 : 2006.11.30
초록
통일형인 밀양23호와 자포니카인 기호벼를 교잡한 재조합자식계통을 대상으로 품질관련 특성 변이를 살펴본 결과 공시계통들에 대한 품질 관련 형질들의 변이 분포는 매우 폭 넓고 다양했으며 대부분의 형질에서 연속적인 정규분포를 보였다. 조사된 형질간의 상관관계는 립의 두께에 대하여 립폭, 심백과 복백은 고도의 정의 상관관계를 나타냈으나 심백과 알카러 붕괴도는 고도의 부의 상관관계를 보였다. 단백질 함량과는 아밀로스, Mg/K 비율에서 고도의 부의 상관을 나타냈으며, K와 지방 함량과는 고도의 정의 상관을 보였다. 밥의 물리성에서는 딱딱한 정도를 나타내는 경도와 부착성, 탄력성, 검성, 저작성에서 고도의 정의 상관을 보였다.
The rice quality related traits including physico-chemical traits were evaluated with one hundred sixty-four MG RILs derived from the cross between Milyang 23, Indica/Japonica hybrid type, and Gihobyeo, Japonica type. The variation distribution of all traits examined approximately fit normal distribution and transgressive segregants over parents were observed for all traits. The occurrence of such transgression could be associated with the interactions of complementary QTL alleles from two parents. However in this study, it could not be concluded that our results of segregation were due to either complementary gene effects or overdominance of a major gene. These factors should be verified by further studies. Correlations between traits were evaluated by regressing phenotypic values of one trait on those of another traits. There are highly significant correlation between grain thickness with grain width, white core and white belly. But between white belly and alkali digestion value showed highly negative significant correlation. Contents of protein showed highly negative correlation with amylose and Mg/K ratio but showed highly correlation with K and Fat contents. Hardness of cooked rice showed highly correlation with adhesiveness, elasticity, gumminess, chewiness.