按照最佳遗传优势部位进行定位选种,是一项最新选种技术。采用定位选种法选出的种子,最能够把一个品种的一切优良性状遗传给下一代,所以能充分发挥良种的增产性能,经济有效地实现稳产增收。据资料介绍,水稻穗子最佳部位的种子发芽率可达100%,播后秧苗生长整齐健壮,抗逆性强,分蘖快,可增产一成以上;玉米用果穗最佳部位的种子可增产4.2～6.1%,成熟期可提早3～4天;土豆用最佳部位的芽眼作种,其产量比用其它部位芽眼作种的可增产26%。几种秋收作物定位选种最 In accordance with the best location of the genetic advantage of genetic selection, is a selection of the latest technology. The seeds selected by the positioning and selection method can best convey all the fine traits of one variety to the next generation, so that it can give full play to the yield-increasing performance of the elite varieties and realize the steady income increase economically and effectively. According to the introduction of information, the seed germination rate of the best part of rice ear can reach 100%. After sowing, the seedling grows neat and sturdy, the resistance is strong, the tiller is fast, and the yield can be increased by more than 10%. The seed with the best part of ear can increase 4.2 ~ 6.1%, and the maturity period could be 3 ~ 4 days earlier. Potatoes were planted as buds with the best parts, yielding 26% more yield than buds with other parts. Several autumn harvest crop positioning and selection of the most