새로운 참깨품종 ‘밀성’을 농촌진흥청 작물시험장 영남 시험장에서 2007년에 개발하였다. 교배조합은 이리4호와 ‘수원131호’로 고품질, 다수성, 내병성을 목적으로 하였다. ‘밀성’은 계통육종법을 이용하여 생산력검정시험, 지역적응성 검정시험을 거쳐 개발되었다. ‘밀성’은 소분지이고 3과성, 2실 4방의 꼬투리를 가지고 있다. 그리고 ‘밀성’의 개화기는 7월 1일로 표준품종인 ‘양백’보다 2일 빨랐다. 또한 성숙기는 8월20일로 ‘양백’과 같았다. ‘밀성’의 경장은 129 cm로 ‘양백’과비슷했다. 하지만 ‘밀성’은 ‘양백’보다 많은 27개의 착삭절을가지고 있어 밀삭형이다. ‘밀성’의 천립중은 2.79 g으로 ‘양백’보다 컸다. ‘밀성’의 역병저항성 및 도복저항성은 ‘양백’과비슷했고 ‘밀성’의 수량은 98 kg/10a로 ‘양백’보다 5% 증수하였다. ‘밀성’은 유지함량은 ‘양백’보다 적었으나 단백질함량은 많았다. 지방산 중 올레산의 비율은 45.8%였고 세사민함량은 2.8 mg/g, 세사몰린 함량은 3.0 mg/g이었다.
A new sesame variety ‘Milsung’ was developed from Yeongnam Agricultural Research Institute, National Institute of Crop Science, Rural Development Administration in 2007. Cross was made by ‘Iri 4’ and ‘Suwon 131’ with high quality and yields capacity and disease resistance. And ‘Milsung’ was followed by breeding methods of pedigree selection, yield performance trials and regional yield trials by the sesame breeding team at the National Institute of Crop Science. ‘Milsung’ has a few branch with tri-capsuled, bi-loculi and quadri-carpellates. And the color of flower is light pink. Flowering date of ‘Milsung’ was Jul 1st which was two days earlier than that of the check variety ‘Yangback’. Maturing date of ‘Milsung’ was Aug 20th which was same to that of the check variety ‘Yangback’. Plant height of ‘Milsung’ was 129 cm which was similar to that of the check. But ‘Milsung’ had 27 capsuled nodes which was more than those of the check. So ‘Milsung’ showed very dense capsuled shape. Disease and disaster resistance including phytophthora blight and lodging were similar to the check. The yield of ‘Milsung’ was 98 kg/10a which increased by 5% compared to that of the check. Oil content of ‘Milsung’ was lower than that of the check but higher in protein. Oleic acid composition of fatty acid was 45.8 percent. The contents of sesamin is 2.8 mg/g and those of sesamolin is 3.0 mg/g.