黑龙江农业科学Issue(9)：9-10,24,3.
黑龙江省杂交粳稻产量与农艺性状灰色关联分析
Grey Correlation Degree Analysis between Yield and Agronomic Character of Hybrid Japonica Rice in Heilongjiang Province
摘要
Abstract
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.关键词
黑龙江省/杂交粳稻/产量/农艺性状/灰色关联分析Key words
H eilongjiang province/hybrid Japonica rice/yield/agronomic character/grey correlation degree分类
农业科技引用本文复制引用
谭贺,夏天舒,卞景阳,赵飞,林凤祥,卓越,许显滨..黑龙江省杂交粳稻产量与农艺性状灰色关联分析[J].黑龙江农业科学,2011,(9):9-10,24,3.基金项目
国家“863”计划资助项目 （）
