1980年晚造,由广东省农科院水稻研究所、广东省华侨农场管理局生产处、国营平沙华侨农场、番禺县杂优研究所、顺德县伦教公社等单位,共同进行“化杀”杂交稻高产、稳产制种田科研协作,取得了预期效果。大面积制种纯度和产量都超过了我省历史水平。如国营平沙华侨农场制“钢化二白”126亩,亩产125.4斤,杂种纯度90％;另制“汕优2号”140亩,亩产68斤,“化杀”每亩制种 1980 made by the Guangdong Provincial Academy of Agricultural Sciences Institute of Rice, Guangdong Overseas Chinese Farm Authority Production Office, the state-owned Ping Shan Overseas Chinese Farm, Panyu County Miscellaneous Research Institute, Shunde County Lunjiao commune and other units jointly kill “Hybrid rice high yield, stable production farming scientific research cooperation, and achieved the desired results. Large-scale seed production purity and output have exceeded the historical level in our province. For example, the state-owned Ping Shan Overseas Chinese Farm system, ”tempered Erbai“ 126 acres, 125.4 kg per mu, hybrid purity of 90%; another system, ”Shanyou 2“ 140 acres, 68 kg per mu, ”kill"