由董保柱研究员领导的优质“遮放软米和香软米”新品种选育及应用示范研究小组 ,在１９９９年的育种和示范过程中发现了一份双层壳水稻新材料。据云南省科技情报查新中心的科技查新报告 :在我国尚无此研究和报道 ,属中国首次发现。根据我室三年初步研究表明 ,该份材料是属于真 A model research team of breeding and demonstration of new high-quality “shelter soft rice and sweet and soft rice” led by researcher Dong Baochu discovered a new double-layer shell rice material during breeding and demonstration in 1999. According to Yunnan Provincial Science and Technology Information Center for the new search technology research report: in our country there is no such study and reports, is China’s first discovered. According to my room three years of preliminary research shows that the material is true