论文部分内容阅读
利用 4个籼型光温敏不育系与 9个籼型恢复系配组杂交 ,分析了 9个稻米外观及加工品质性状杂种一代的表现、配合力效应及其相关显著性。结果表明 ,杂种一代糙米率的达标率最高 ,而整精米率的达标率最低 ;不育系中的培矮 6 4S、恢复系中的HR1 5 7和HR1 5具有较好的一般配合力 ;品质性状优良的杂交组合 ,其双亲的一般配合力均较好 ;偏相关分析表明糙米率和整精米率均为独立性状 ,垩白粒率与米粒长度呈显著负相关 ,与垩白度及米粒宽度呈显著正相关 ,而米粒长与宽呈极显著正相关。
Four hybrid indica type photo-thermo-sensitive genic male sterile lines and nine indica restorer line combinations were used to analyze the performance, combining ability effect and their correlation significance of hybrid appearance and processing quality traits in nine rice cultivars. The results showed that the rate of hybrid rice brown rice reached the highest rate while the rate of finished rice was the lowest. Pei’ai 6 4S and HR1 5 7 and HR1 5 of restorer lines had the best general combining ability. The quality Partial correlation analysis showed that brown rice rate and milled rice rate were all independent traits, the chalky grain rate was significantly negatively correlated with the length of rice grain, and the chalkiness and grain width There was a significant positive correlation between rice grain length and width.