CAJ | 학술논문

在哈尔滨地区对9个杂交粳稻组合材料进行栽培试验,采用灰色关联度分析法对杂交粳稻产量与农艺性状进行关联度分析。结果表明：穗长x4,千粒重x8,株高x1和活动积温x3对产量影响较大;关联度大小顺序为：穗长x4〉千粒重x8〉株高x1〉活动积温x3〉穗数x7〉穗粒数x5〉根干重x2〉结实率x6。说明提高杂交粳稻产量首先应该考虑增加穗长,其次是增加千粒重。选育适宜黑龙江省种植的杂交粳稻需要加强大穗的选择;栽培上要采取提高温度促进杂交粳稻发育的措施。
재합이빈지구대9개잡교갱도조합재료진행재배시험,채용회색관련도분석법대잡교갱도산량여농예성상진행관련도분석。결과표명：수장x4,천립중x8,주고x1화활동적온x3대산량영향교대;관련도대소순서위：수장x4〉천립중x8〉주고x1〉활동적온x3〉수수x7〉수립수x5〉근간중x2〉결실솔x6。설명제고잡교갱도산량수선응해고필증가수장,기차시증가천립중。선육괄의흑룡강성충식적잡교갱도수요가강대수적선택;재배상요채취제고온도촉진잡교갱도발육적조시。
Nine materials of hybrid japonica rice were planted in Harbin area,the grey correlation degree analy sis was employed to investigate the relationship between yield and agronomic character of hybrid japonica rice. The results showed that：the main characters such as length x4. thousand seed weight x8. stem length x1 and active accumulated temperature x3 had the closer relation with yield; the relative order of yield and agronomic characteristics was length x4〉 thousand seed weight x8 〉 stem length x1 〉 active accumulated temperature .r3〉spike number x7〉 the number of seeds per ear x5〉 root dry weight x2〉 maturing rate x6. Thus,to en hance yield of hybrid japonica rice should consider the spike length first, then consider increasing thousand seed weight. It needed to strengthen the big spike in the breeding choice to adapt to Heilongjiang area,and en- hance the temperature to promote growth of hybrid japonica rice in cultivation.