云南农业大学农业科学技术学院生物技术系１９８２年用密阳２３、毫双７号作亲本杂交选育而成的籼型香米水稻新品种大粒香１２号，经多年多点试验示范表明，该品种具有高产、优质、多抗、适应广等特点．适宜在海拔１３００～１６００ｍ的边疆山区和低热河谷区种植．近年先后在云南南部示范推广２００００ｈｍ２，均比当地主栽老品种增产３４．６％～５８．９％． Yunnan Agricultural University, College of Agricultural Science and Technology Department of Biotechnology 1982 with Miryang 23, Mill Shuang 7 as the parental hybrid breeding of indica rice new varieties of rice on the 12th, after years of multi-point demonstration shows that the experiment Varieties with high yield, high quality, multi-resistance, adaptability and other characteristics. It is suitable for planting in the border mountainous area and the low-heat valley area of ​​1300 ~ 1600m above sea level. In recent years, it has successively demonstrated and promoted 20000 hm2 in the southern part of Yunnan, both of which increased 34.6% ~ 58.9% more than the local cultivated old breeds.