论文部分内容阅读
以20个甘蔗杂交组合的实生苗群体为材料，分析了9个产量、品质性状的遗传相关和遗传通径系数。结果表明，株高对产量的遗传相关大于其他产量性状，茎径与4个品质性状为遗传正相关，以株高和茎径为选择方向并兼顾丛有效茎数，能达到高产高糖基因型的选择目标。丛重对丛含糖量的遗传正相关显著，直接效应大，而蔗汁蔗糖分对丛含糖量为遗传负相关，直接效应也为负，说明在实生苗世代应采用以丛重为主的选择高含糖量单株的选择策略。
Twenty seedling populations of 20 sugarcane crosses were used as materials to analyze the genetic correlation and genetic path coefficient of 9 yield and quality traits. The results showed that the genetic correlation between plant height and yield was greater than that of other yield traits. The stem diameter and the four quality traits were genetically and positively correlated with the plant height and stem diameter as the selection direction and taking into account the effective clumps of plexus, which could reach high yield and high glucose genotype The choice of target. The cluster weight had a significant positive correlation with the sugar content in the cluster, but the direct effect was large. However, the sugar content of sugarcane juice in sugarcane juice was genetically negatively correlated with the direct effect, which indicated that the cluster weight Selection Strategy of Individuals with High Sugar Content.