小麦植株在孕穗期之前及孕穗期,用500ppm 的乙烯利(2—氯乙基磷酸)进行喷雾处理,麦穗上的种籽数,比未处理的少很多。用1000—3000PPm 乙烯利处理的,麦穗上只有少数种籽或不结种籽。在孕穗初期(旗叶叶鞘露出2—8厘米时)和后期(幼穗稍膨起至麦穗刚抽出时),使用1000—2000ppm 的乙烯利处理,都可以引起小麦雄性不育。看小麦生长发育,乙 Wheat plants were sprayed with 500 ppm of ethephon (2-chloroethylphosphate) before booting and at booting stage, and the number of seeds on the ears was much less than the untreated ones. With 1000-3000PPm ethephon treatment, the ears have only a few seeds or seeds. Male sterility of wheat can be induced in the early booting stage (2-8 cm in flag leaf sheaths) and late (young panicle slightly swollen to freshly harvested ears) with 1000-2000 ppm ethephon. Look at the growth and development of wheat, B.