一、雄性不育蓖麻的选育在保康地区,蓖麻是一年生雌雄同株异花植物,雌雄花分布在同一花序的穗轴上,花序的上部是雌花,下部是雄花,属常异交植物,但是1977年我旗农艺师卞理南同志在保康地区用山东蓖麻和当地品种蓖麻的杂交后代中发现一株单性雌株蓖麻的突变体,即整株蓖麻的整个花序都是雌花,没有雄花, First, the male sterile castor selection breeding In the area of ​​Baokang, castor is annual monoecious allotropical plants, male and female flowers are distributed in the same inflorescence cob, the upper part of the inflorescence female flowers, the lower is the male flowers, is often different However, in 1977, my flag agronomist Bian Linagan in the Baokang area with Shandong castor bean and local varieties of castor bean hybrid progeny found in a single female castor bean mutant, that is, the whole plant castor flower inflorescence Are female flowers, no male flowers,