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以６份籼型不育系和７份粳型或偏粳型广亲和系配制成不完全双列杂交，将杂种Ｆ_１及其亲本在３个播期（早播５／２０，中播６／１０，迟播６／３０）下试验．结果表明，籼粳交Ｆ_１在多数性状上其群体平均优势和群体超亲优势均随播期推迟而呈下降的趋势；Ｆ_１性状的平均基因型预测值显示了早播常出现植株偏高、剑叶披和生育期延长，而迟播导致主穗总粒数减少；Ｆ_１杂种在株高、抽穗天数、剑叶长、主穗长、主穗总粒数和着粒密度性状间均表现显著显性正相关．
A total of 6 indica-type CMS lines and 7 japonica-type or japonica-japonica type wide compatibility lines were used to make incomplete diallel cross. The F1 hybrids and their parents were sowed in 3 sowing dates / 10, delayed broadcast 6/30) under the test. The results showed that the population average superiority and population super-parental superiority of F1 in indica-japonica hybrids tended to decrease with the delay of sowing date. The average genotype predictive value of F1 trait showed that the plantlets appeared frequently in early seeding, Leaf epiphytic and the growth period prolonged, while the delayed sowing led to the reduction of the total number of main spike grains; F_1 hybrids in the plant height, heading days, flag leaf length, the main spike length, the main spike grains and grain density between the performance were significantly Positive correlation.