红萍是一种优质高产的绿肥和青饲料。可进行无性和有性繁殖,目前生产上多采用无性繁殖,但在遇到夏季高温和虫害或冬季低温严寒的时候,常常死亡殆尽。前几年我县利用天然泉水和温室人工保种越冬、越夏,耗费人力物力较大,而且数量有限,难以满足生产的需要,使红萍的推广使用受到限制。我所从1977年开始进行有性繁殖试验,四年来对红萍孢子果形成和萌发条件、有性苗的培育、孢子 Hongping is a high-quality green manure and green feed. Asexual and sexual reproduction can be carried out, the current production of more use of asexual reproduction, but in the face of summer heat and pests or cold in winter when the cold, often die out. A few years ago my county using natural spring water and greenhouse conservation of winter, summer, consuming more manpower and material resources, and a limited number of difficult to meet the needs of production, so that the promotion of Hongping use is limited. I started from 1977 sexual reproduction test, four years on the formation and spore conditions Sporulation, sexual seedling cultivation, spores