历时17年34造对D汕AB、珍汕97A、丛广41AB和中9AB进行原种提纯和繁殖技术研究与应用推广,原种纯度从引进时的96.54%~98.40%,提高到99.94%~99.98%;每667 m2繁种产量从100多kg提高到280 kg,种子全部达到国家质量标准,并形成了一套完整高效的杂交稻原种提繁技术,应用于当地杂交稻亲本种子生产,取得了良好的社会效益和经济效益。 It took 17 years 34 to research and popularize the technology of purification and propagation of the original seeds of D Shantou, Zhenshan 97A, Congguang 41AB and Zhong 9AB, the purity of the original species increased from 96.54% -98.40% at the time of introduction to 99.94% 99.98%; the yield per 667m2 increased from 100kg to 280kg, the seeds all reached the national quality standards, and formed a set of complete and efficient hybrid rice seed breeding techniques, used in local hybrid rice parental seed production, Has made good social and economic benefits.