1999年全国南方稻区水稻品种区试组织了华南早籼组、早籼早中熟组、中籼迟熟(A、B)组、晚籼早熟组、晚籼中迟熟组、双季晚粳组7个熟组的区试以及华南早籼组、早籼早中熟组、中籼迟熟A组、双季晚粳组4个熟组的生产试验。供试品种(组合)67个,试验点次127个。经对试验资料的总结分 In 1999, the rice varieties in the southern rice region of China organized the early indica rice in South China, early indica and middle-aged indica rice, late indica rice in late indica (A and B), late indica rice in early maturity, The regional trial of 7 ripening groups in japonica rice and the production of 4 ripening groups of early indica rice in South China, early indica early middle ripening group, middle indica late ripening A group and double crop late japonica rice. The test varieties (combination) 67, the number of test points 127. The summary of the test data points