“九云晚一号”是我所用珍龙13年和五四五○两个不同生态类型的早晚稻变异单株杂交,并通过三次南繁,加速世代,选择定型,于一九七六年育成的一个早熟晚籼品种。三年来,我县在大面积推广杂优的情况下,群众通过试验、示范,自发推广九云晚一号达11,000余亩,遍及全县十八个公社、场、校,六十多个生产队,并向兄弟县外调良种十多万斤。 “Jiuyun Late One” is a hybrid between early and late rice mutant individuals of the 13 different types of pears and 54550 ecotypes that I used in my study. Through three times of propagation, I accelerated my generation and chose to shape. In 1976, A precocious late indica variety. In the past three years, under the circumstance of large-scale promotion of gifted population in our county, the masses, through experiments, demonstrations and spontaneous promotion of more than 11,000 mu of the late-night Jiuyun, spread over 18 communes, farms, schools and more than 60 production sites throughout the county Brigade, and brothers and county outside the tune of more than ten thousand kilos.