“湘早籼21号”(原名湘辐92—1),系湖南省农科院原子能农业应用研究所,通过辐射与激光相结合方式选育而成的一个早熟早籼新品种。经省区试和多点试验,均表现高产、抗病、优质,1996年2月通过湖南省农作物品种审定委员会审定。 据1992年品比试验,亩产420公斤,比“浙辐802”增产7.1％;全 Xiangzaoxian 21 (formerly Xiangfu 92-1) is a precocious early indica variety developed by a combination of radiation and laser at the Institute of Atomic Energy Applications, Hunan Academy of Agricultural Sciences. The provincial and district trials and multi-point test, all showed high yield, disease resistance, high quality, in February 1996 through the Hunan Provincial Crop Variety Approval Committee validation. According to the 1992 ratio test, 420 kg per mu, an increase of 7.1% over “Zhefu 802”;