翻译：分别测定果实横径和纵径游标卡尺测定计算果型指数、硬度HP-230型硬度仪测定、果实内在品质测定参考杨莉莉等方法进行

Translation: The fruit's horizontal and vertical diameters are measured separately (using a vernier caliper) to calculate the fruit shape index. Hardness is determined using an HP-230 hardness tester. Intrinsic fruit quality measurements are conducted with reference to methods such as those used by Yang Lili.