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通过对成熟期库尔勒香梨偏斜果中种子数量、果实纵横径、内果皮直径、重量和果实的偏斜度进行测量,研究偏斜果与果实中种子的相关性。结果表明,种子数量与香梨果实偏斜指数存在极显著相关性(P<0.01)。偏斜指数随着种子数量的增加而降低,且果实中种子数少于3个时,与对照相比偏斜指数差异极显著(P<0.01)。当种子形成数量少于或等于2个时,香梨果实偏斜率大于35%,为四级果,不符合商品化需求。当种子数量大于或等于8个时,果实偏斜率小于15%。对照平均单果重比种子数量少于3个的果实分别高了2.90g和13.86g。通过主成分分析可将香梨形态指标归为果实大小、形态区别和偏斜指数3类。种子数量少于或等于2个时,不但会影响果实单果重、纵横径、偏斜指数,更会造成香梨果实的商品性、均一性降低,影响库尔勒香梨的市场价格。
The correlation between skewed fruit and seeds in fruit was studied by measuring the number of seeds, the vertical and horizontal diameter of the fruit, the diameter of the pericarp, the weight and the skewness of the fruit during the ripening stage. The results showed that there was a significant correlation between seed number and skewness index of pear (P <0.01). The skewness index decreased with the increase of seed number, and the number of seeds in the fruit was less than 3, the skewness index was significantly different from the control (P <0.01). When the number of seed formation is less than or equal to 2, the deflection of pear fruit is more than 35%, which is the fourth grade fruit, which is not suitable for commercialization. When the number of seeds is greater than or equal to 8, the skewness of fruit is less than 15%. The average fruit weight per control was 2.90 g and 13.86 g, respectively, higher than the number of seeds with less than 3 seeds. Principal component analysis can be pear shape index classified as fruit size, morphological differences and skewness index 3 categories. When the number of seeds is less than or equal to 2, not only will it affect the fruit weight, vertical and horizontal diameter, skewness index, but also reduce the commerciality and homogeneity of pear fruit and affect the market price of korla fragrant pear.