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对青六矮 1号及其衍生品种 (品系 )的相关分析表明 :产量与有效穗数呈极显著正相关 ,与每穗总粒数和每穗实粒数呈显著负相关 ;倒三叶长与倒二叶长呈极显著正相关 ,与着粒密度呈显著负相关 ,与粒长呈显著正相关 ,与垩白率呈显著负相关 ,与垩白度呈极显著负相关 ,与胶稠度呈显著正相关 ,与直链淀粉含量呈显著负相关。主成分分析表明 :株高因子和穗粒数因子对产量有极显著正线性关系 ,对产量的重要性顺序为 :株高因子 >穗粒数因子 ;整精米率因子对综合品质有极显著正线性关系。提出在广州地区对该衍生系统的选择应注重多穗、穗长着粒疏、每穗总粒数和每穗实粒数较小 ,株高稍高、倒三叶较长、粒长透明、千粒重较大单株的选择。讨论了该衍生系统进一步改良的有关问题。
Correlation analysis of Qinglianai 1 and its derivative cultivars (lines) showed that there was a significant positive correlation between yield and effective panicles, negative correlation with total grains per panicle and grains per panicle; Had a significant positive correlation with the second leaf length, a significant negative correlation with the grain density, a significant positive correlation with the grain length, a negative correlation with the chalkiness rate, a significantly negative correlation with the chalkiness degree, Was significantly positive correlation with amylose content was significantly negatively correlated. The principal component analysis showed that there was a significant positive linear relationship between plant height and grain number per plant, and the order of importance to the yield was: plant height and grain number per spike; the rate of integral milled rice had a significant positive effect on the comprehensive quality Linear relationship. It is suggested that the selection of this derivative system in Guangzhou should pay more attention to the spikelets and spike length, the total number of grains per panicle and the number of grains per panicle are smaller, the plant height is slightly higher, the longer three leaves are longer, Thousand grain weight larger plant selection. The related issues of the further improvement of the derivative system were discussed.