Male sterility in onion was first located by HA Jones is the year

Male sterility in onion was first located by H. A. Jones in the year 1925.
Male sterility in plants implies an inability to produce or release functional pollen and is the result of the failure of the formation or development of functional stamens, microspores or gametes.
In onions (Allium cepa L.), cytoplasmic male-sterility (CMS) has been widely used in hybrid seed production. Two types of CMS (CMS-S and CMS-T) have been reported in onions.