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1．概况1995年全国南方稻区籼型杂交稻区试在南方稻区14个省区设36个试点，共45个新组合分5组参加区试。（1）早稻组：参试点12个，参试组合单个，对照为威优49（CKI）、威优48．2（CK2）；（2）中稻早、中熟组：参试点17个，参试组合10个，对照为威优64；（3）中稻迟熟组：参?
1. Overview In 1995, the southern part of the indica hybrid rice area trial in southern rice paddies in southern rice provinces set up 36 pilot projects in 14 provinces, a total of 45 new combinations divided into 5 groups participated in the district test. (1) In the early rice group, there were 12 pilot plants with a single combination of CKI and CK2. (2) Early and mid-medium rice group: 17 pilot plants, Ten combinations were tested and the control was Weiyou 64; (3)