The Variation Analysis of the Fruit′s Economic and Yield Character of the Sapindus delavayi

The economic and yield traits of 42 Sapindus delavayi cultivars and their correlations were analyzed by means of difference analysis and cluster analysis.The results showed that there were linear positive correlations between the fruit economic traits of S.delavayi; There was no significant difference among crown yield per unit area, fruit kernel quality and fruit kernel thickness.There were significant differences in fruit size, fruit shape index and oil content among other traits.The maximum oil content was 43.19%(Anning 1^#), the minimum oil content was 28.69%(Songming 6^#), the coefficient of variation of kernel oil content reached 9.10%, and the variation range was significant.Correlation analysis of traits showed that kernel rate, kernel length and diameter were significantly or very significantly correlated with oil content of seed kernel.The correlation analysis of each trait and geographical climatic factors showed that the 3 traits of fruit and 3 diameters of seed were negatively correlated with latitude and longitude, which indicated that the 3 diameters of fruit and 3 diameters of seed showed the trend of reverse change with the change of latitude and longitude.The lateral diameter, longitudinal diameter and shape index of the fruit core were significantly or very significantly positively correlated with the annual average temperature, indicating that the kernel size varied with temperature.Cluster analysis of 42 S.delavayi using 16 traits showed that S.delavayi was clustered according to crown yield per unit area and was divided into three groups.Among them, the crown production of more than 2 000.0 g/m² per unit area was classified as Class Ⅰ, the unit output of the crown production between 1 500.0-1 900.0 g/m² was classified as Class Ⅱ, and the output per unit area of the crown production less than 1 400.0 g/m² was classified as ClassⅢ.