쌀 다수확 장려품종의 단백질의 양적 및 질적 평가를 위해 기존장려품종 1종(Jinheung)과 장려품종 5종(Tongil, Suwon 264, Ishin, Iri 326, Milyang 23)의 아미노산 조성을 분석하였다. 진흥, 통일, 수원, 유신, 이리, 밀양 등의 단백질 함량은 각각 8.16%, 8.77%, 9.36%, 9.43%, 9.63%이고 E/T ratio는 각각 1.83, 2.10, 2.04, 2.01, 2.11, 1.93이였으며 A/E비 화학가는 각각 94.9, 84.8, 83.2, 80.8, 78.4, 89.5이였으며 제 1제한아미노산은 진흥은 isoleucine이였고 그의 모두는 lysine이였다.
The analysis on the amino acid composition of rice varieties including one Japonica line(Jinheung) and five other Indica-Japonica breedings (Tongil, Suwon, Iri, Ushin, Milyang) recommended to raise, have been carried out to evaluate the quality and quantity of protein of them. 1) The protein contents of 5 breedings showing higher than 8.16% of Jinheung were 9.63% in 23-Milyang, 9.45% in 326-Iri, 9.36% in 264-Suwon, 8.88% of Ushin and 8.77% of Tongil. 2) The gram of total essential amino acid per gram of total nitrogen (E/T ratio) have been 2.11 in Iri, 2.10 in Tongil, 2.04 in Suwon, 2.01 in Ushin, 1.92 in Milyang and 1.83 in Jinheung. 3) The chemical scores of proteins (A/E) were 84.8 in Tongil, 83.2 in Suwon, 80.8 in Ushin, 78.4 in Iri, 89.5 in Milyang and 94.9 in Jinheung. 4) The most limiting amino acid in Jinheung was isoleucine, while that in Tongil, Suwon, Ushin, Iri and Milyang was lysine.
