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用四川省水稻育种攻关组“八五”后期育成的一批不育系和恢复系(同时加对照珍汕97A和明恢63)按不完全双列杂交配制20个组合,于1996年分别在成都、绵阳、重庆和泸洲进行试验,运用AMMI模型对参试组合的产量进行了分析。结果表明:有9个组合的平均产量超过对照汕优63,增产幅度为0.03%~4.06%,占参试组合的42.11%;组合稳定性评价很重要,基因型与环境的互作达极显著水平,互作效应为基因型效应的二倍;AMMI模型的前两个主成分解释了83.35%的交互作用信息;珍汕97A/734、K42A/734和辐76A明恢/63表现丰产而稳产,辐76A/734和辐76A/生5丰产而不稳产,辐76A/成恢149、台九A/生5和K42A/成恢149则稳产而不丰产,其余组合既低产又不稳产。建议推荐辐76A/734、K42A/734、珍汕97A/734、辐76A/生5等参加省级区试;辐76A/生5同时在绵阳、珍汕97A/1348在重庆、K42A/明恢63在成都参加市级区试或示范。
A total of 20 combinations were made by incomplete diallel cross breeding from a batch of sterile and restorer lines (also added to Zhenshan 97A and Minghui 63) bred in the “Eighth Five-Year Plan” of Sichuan Rice Breeding and Research Group. In 1996, Chengdu, Mianyang, Chongqing and Luzhou. The AMMI model was used to analyze the yield of the combination. The results showed that the average yield of 9 combinations was higher than that of Shanyou 63, the rate of increase was 0.03% ~ 4.06%, accounting for 42.11% of the total. The combination stability evaluation was very important. The genotype and environment And the interaction effect was twice as high as that of the genotype. The first two principal components of the AMMI model explained 83.35% of the interaction information; and the Zhenshan 97A / 734, K42A / 734 and Hefei 76A Minghui / 63 showed high yield and stable yield, while the yield of 76A / 734 and 76A / Sheng 5 was not stable, while that of 76A / Chenghui 149, Taiji A / Sheng 5 and K42A / Chenghui 149 was stable but not high yield. The rest Combination of low yield and unstable production. It is suggested that provincial 76A / 734, K42A / 734, Zhenshan 97A / 734, Yantai 76A / 63 Participate in municipal examination or demonstration in Chengdu.