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D优10号是四川农业大学水稻研究所用籼粳型水稻D297A与恢复系水稻明恢63组配的强优势杂交水稻。这种杂交稻经1986年、1987年多点试验和生产示范,1988年、1989年已在四川、云南、福建、广东等一二个省(区)累计推广80万亩。D 优10号杂交稻有以下四个特点:一是丰产性好,产量高。D 优10号株型紧凑,叶片独立内卷,功能期长,分蘖力中上,受光姿态良好,容穗量较大,成穗率较高,千粒重29克左右。1989年,四川、湖南、福建3省13个单位连片示范种植31450亩,平均亩产559.5公斤,在相同栽培条件下,比目
D You 10 was a strong hybrid rice with the indica and japonica rice D297A and restorer line Minghui 63 in Sichuan Agricultural University. This type of hybrid rice has been tested and produced in 1986 and 1987 with more than 80 million mu of land in one or two provinces (regions) of Sichuan, Yunnan, Fujian and Guangdong in 1988 and 1989 respectively. D You 10 hybrid rice has the following four characteristics: First, high yield, high yield. D You No. 10 plant compact, independent leaf volume, long functional period, the tillering ability, good light-receiving posture, the larger the amount of spike, a higher spike rate, grain weight of about 29 grams. In 1989, 13,505 mu of plots were planted in 13 units in Sichuan, Hunan and Fujian provinces with an average yield of 559.5 kilograms per mu. Under the same cultivation conditions,