一、引种推广概况杂交水稻“汕优30选”是广西农科院用“珍汕97A”דIR30选”配制而成的晚造丰抗兼优新组合。我县于1983年从广西引进少量亲本和杂种F_1种子,通过试验示范,掌握了制种及栽培技术后,于1984年晚造全县大面积推广“汕优30选”21.8万亩,占杂交水稻面积的82.2％。据调查,这一造产量最好的杂交组合是“汕优30选”。如大江区种植“汕优30选” First, the introduction of introduction of introduction of hybrid rice “Shanyou 30 election” is the Guangxi Academy of Agricultural Sciences with “Zhenshan 97A” × “IR30 election” prepared from late-made Fengkang and excellent new combination. In 1983, a few parents and hybrid F_1 seeds were introduced from Guangxi by our county. After the experiment and demonstration, we mastered the techniques of seed production and cultivation. In 1984, we made 218,000 mu of “30 Selected Works of Shanyou” 82.2% of the area of ​​rice. According to the survey, the best hybrid yield is “Shanyou 30 election.” Such as the big area planting “Shanyou 30 election”