“9优138”系徐州农科所育成的高产、抗病杂交中梗新组合。该品种1996年4月通过江苏省农作物品种审定委员会审定，其母本“9021A”也同时通过审定产量表现1994～1995年参加江苏省杂交粳稻区试，平均亩产595·7公斤，比对照徐优3－2增产9．5％，位居第一，增产极显著。1995年省 “9 You 138” is a new combination of high-yielding and disease-resistant hybrid stems bred by Xuzhou Agricultural Science Institute. The varieties in April 1996 through the Jiangsu Provincial Crop Variety Approval Committee validation, the mother of “9021A” also passed the validation of production performance in 1994 to 1995 to participate in Jiangsu Province hybrid japonica zone test, the average yield of 595.7 kg, compared with the control Xu You 3-2 yield 9.5%, ranking first, a significant increase in production. 1995 Province