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珍汕97A,是我国目前应用最广泛的杂交稻不育系亲本。据一九八一年统计,全国种植汕优系统组合的面积为3988万亩,占当时杂交稻总面积的_52%。近两年来,我国杂交稻种植面积有所扩大,其中增长最显著的广东省,主要以汕优当家。一度在长江以北稻区保留部分面积的南优系统组合,也逐渐被汕优所取代。估计目前全国种植的汕优组合,约占杂交稻总面积的60%以上。种植面积比较集中的有广东、福建、浙江、江西、江苏、安徽、四川等省。其中长江流域单季稻区和华南双季稻区,以汕优2号为主,其它双
Zhenshan 97A, is the most widely used hybrid rice CMS lines in China at present. According to statistics from 1981, the area planted by the Shanyou National System in the country was 3988 mu, accounting for 52% of the total area of hybrid rice at the time. The past two years, China’s hybrid rice acreage has been expanded, of which the most significant growth in Guangdong Province, mainly in Shanyou. NanYu system combination, which once reserved some area in the rice area north of the Yangtze River, was gradually replaced by Shanyou. It is estimated that the Shanyou combination currently planted nationwide accounts for more than 60% of the total area of hybrid rice. More concentrated acreage Guangdong, Fujian, Zhejiang, Jiangxi, Jiangsu, Anhui, Sichuan and other provinces. Among them, the single-season rice region in the Yangtze River valley and the double-cropped rice region in South China are mainly Shanyou 2,