Correlation Analysis of Fruit Quality and Tree Structure of 'Fuji' Apple in Bagging-free Cultivation Pattern
In order to clarify the correlation between the fruit quality of Fuji apple cultivated without bagging and the tree structure and branch composition, the 'Fuji' apples from 31 orchards in Shandong Province were used as test materials to study the correlation between appearance quality, internal quality, tree height, stem diameter, crown diameter, branch composition ratio and other parameters. The results showed that there was a significant negative correlation between single fruit weight, fruit shape index, and tree height, with a* value representing red showing a highly significant negative correlation with tree height, a significant positive correlation with crown width and crown volume, a signif-icant negative correlation with coloring index with tree height, a significant positive correlation with crown width, a significant positive correla-tion with smoothness index with crown width, and a highly significant positive correlation with crown volume;There was no significant correla-tion between the internal quality hardness, solid, soluble sugar content, VC and calcium content and tree structure. The content of titratable acid was extremely significantly negatively correlated with crown width and crown volume, and the content of anthocyanin was extremely signifi-cantly negatively correlated with stem height. The b* value representing yellow is significantly negatively correlated with branch length and pos-itively correlated with the proportion of leaf clusters to branches;The content of soluble solids was significantly negatively correlated with branch length, significantly positively correlated with the proportion of leaf clumps and branches, significantly negatively correlated with the proportion of long branches, significantly negatively correlated with the content of titratable acid and branch length, significantly positively correlated with the proportion of leaf clumps and branches, significantly positively correlated with the content of VC and the number of main branches, signifi-cantly negatively correlated with the length of branches, and significantly positively correlated with the content of anthocyanins and the number of branches. Analysis shows that during the initial fruit stage (<12 a) of Fuji orchard, tree height, stem height, crown width and other tree structure indicators have a greater impact on the external quality of the fruit than on the internal quality, while the proportion of branch compo-sition has a greater impact on the internal quality than on the external quality.
No baggingFujiFruit qualityTree structureBranch compositionCorrelation
万方数据
维普
