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亚优2号为籼粳亚种间杂交稻品种.本文运用数理统计的方法分析其合理的群体结构和产量结构模式,为采取合理的栽培措施,充分发挥该品种的增产潜力提供理论依据.材料和方法1990～1991年在盐城农校亚优2号丰产方中设置密度试验.小区面积0.03亩,土壤肥力中等,粘壤土.设1万(处理Ⅰ)、1.5万(处理Ⅱ)、2万(处理Ⅲ)、2.5万(处理Ⅳ)、3.0万(处理Ⅴ)共5个处理.随机区组设计,4次重复.水肥管理与大田一致.成熟后各小区单独计产,各取10株进行室内考种分析.并在
Yayou No.2 is a hybrid rice between Indica and Japonica subspecies.In this paper, the reasonable population structure and yield structure pattern were analyzed by using mathematical statistics to provide theoretical basis for taking reasonable cultivation measures and giving full play to the yield potential of this variety.Materials Methods Density tests were conducted in Yanchang Agricultural School Yayou No.2 High Yielding Plant from 1990 to 1991 with a plot area of 0.03 mu and a medium soil fertility of clay loam with 10,000 (treatment Ⅰ), 15,000 (treatment Ⅱ) and 20,000 (Treatment Ⅲ), 25000 (Treatment Ⅳ) and 30000 (TreatmentⅤ) .From a randomized block design, four replications were conducted.The water and fertilizer management was consistent with that of the field.All the plants were planted separately after the ripening, and 10 Indoor test analysis