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苏联园艺研究人员对5个梨栽培品种所从事的为期3年的一项试验中发现,采摘成熟期的最可靠指标是果皮颜色(果皮变黄)和果皮与果肉的硬度(公斤/平方厘米)。试验结果表明,‘Bessemyanka’的上述后两项指标的相应值分别为每平方厘米4.4和2.2公斤,而‘Lada’、‘Chizhovskaya’、‘Moskvichanka’和‘Otradnenskaya’则为每平方厘米3.9和1.8,3.4和1.3,3.8和1.9,4.2和2.5公斤。在果皮与果肉硬度的最适值时采摘的‘Bessemyanka’和‘Lada’果
In a three-year experiment conducted by five pear cultivars, the Soviet horticultural researchers found that the most reliable indicators of ripening at harvest are peel color (yellowing of the peel) and hardness of the peel and pulp (kg / cm²) . The test results show that the corresponding values of the latter two indicators for ’Bessemyanka’ are 4.4 and 2.2 kilograms per square centimeter, respectively, while those for ’Lada’, ’Chizhovskaya’, ’Moskvichanka’ and ’Otradnenskaya’ are 3.9 and 1.8 per square centimeter, respectively , 3.4 and 1.3, 3.8 and 1.9, 4.2 and 2.5 kg. ’Bessemyanka’ and ’Lada’ fruit picked at optimum peel and pulp firmness