杂交水稻岗优12,由四川农业大学水稻研究所用岗46A作母本,明恢63作父本配制而成的新组合。1991年在珙县农科所进行小区试验,亩产520公斤,比对照汕优63亩增41.5公斤,增长8.7％;在珙县洛亥镇俄塘村的品比试验,亩产660公斤,位居第一,比对照汕优63亩增80公斤,增长13.8％。1992年在珙县洛亥镇四个村的103亩丰产示范片,总产57480公斤,平均亩产558公斤,比对照汕优63亩产490公斤,每亩增产68公斤,增长13.9％。根据试验示范和考种分析表明,岗优12新品种是一个更换汕优63、D优63品种比较理想的当家种,丰产性好,抗病虫性较强。要夺取岗优12新品种的高产,主攻目标应以攻 Hybrid rice Gangyou 12, by the Sichuan Agricultural University Rice Research Institute Kong 46A as the female parent, Minghui 63 father made from the new combination. In 1991, Pixian Agricultural Research Office conducted a plot test with a yield of 520 kg per mu and an increase of 41.5 kg over the control of Shanyou of 63 mu, an increase of 8.7%. In the plot ratio test at the village of Ootang, Luohe Town, Lixian County, a yield of 660 kg per mu, Ranked first, compared with the control Shanyou 63 acres increased 80 kg, an increase of 13.8%. In 1992, a total of 57,480 kilograms of 103-hectare high-yield demonstration film was produced in four villages in Luohai Town, Juxian County, with an average yield of 558 kilograms. Compared with the control Shanyou 63 mu yield 490 kilograms, an increase of 68 kilograms per acre, an increase of 13.9%. According to the experimental demonstration and test species analysis showed that Gangyou 12 new varieties is a replacement of Shanyou 63, D You 63 varieties of the ideal species, high yield, strong resistance to pests and diseases. To capture the high yield Ganggang 12 new varieties, the main target should be to attack