[目的]以玉米杂交种金博士658为材料,研究种子分级对其农艺性状和产量的影响.[方法]采用随机区组设计,3次重复,4个处理,6行区设计安排.[结论]不同级别的种子间,百粒重的增加对提高作物营养生长水平和产量表现有一定的效果,大粒种子的产量比未分级种子产量增加2.35％,中粒和小粒种子分别比未分级种子产量低0.28％、1.28％,差异未达显著水平.[结论]该研究可为下一步金博士658种子分级差异化包装及高产栽培技术提供理论依据.%[ Objective ] With maize hybrid Jinboshi658 as material, effects of seeds grading on agronomic traits and yield were studied. [Method] By using random grouping design, 3 repeats, 4 treatments, 6 lines were designed. [Result] Among different grades, the increase of 100-grain weight can improve crop vegetative and yield. The yield of large seeds increased by 2. 35% than CK, the yield of middle seeds and small seeds reduced by 0.28% and 1.28% than CK respectively, but the difference is not significant. [Conclusion] The study provides theoretical basis for different packaging of Jinboshi658 seeds and high-yield cultivation technique.
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