“溪萍绿”是宁德地区农科所于一九六五年在当地萍种中,发现单枚变异体,经断枝离养加速繁育和大田放养,育成的新品种。该品种的特点是萍体翠绿色,在严寒、炎热、缺乏营养等不良环境条件下,呈黄绿色。与其它十一个红萍品种比较,具有分枝多、萍体厚、繁殖快、含氮量高的优点。此其它品种的繁殖率高百分之二点四至五点五。大田放养对水稻的 “Creek Ping Green ” is Ningde Agricultural Science Institute in 1955 in the local Ping species, found a single variant, after cutting off branches to speed up breeding and field breeding, breeding new varieties. The variety is characterized by Pingtui green, yellow-green under adverse environmental conditions such as cold, hot, lack of nutrition. Compared with other eleven red duckweed varieties, it has the advantages of many branches, thick body, fast propagation and high nitrogen content. The reproductive rates of the other varieties were 2.4% to 5.5% higher. Daejeon stocked on rice