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在核桃成熟期及之前,以7d为间隔,随机摘取3个批次的核桃,对其整体及不同组分的鲜、干质量,营养物质含量以及体积变化进行测试。发现随着采摘期的延后,外果皮水分逐渐减少,同时核桃仁质量、粗脂肪等逐渐增加。通过比较发现,核桃壳的大小和质量无明显变化,在摘期前14d内,内果皮的构建已经完成,只是增加核桃仁的质量。采摘较早的核桃其壳暗黑,仁霉烂程度较高。
Before and during the ripening stage of walnut, three batches of walnuts were randomly selected at intervals of 7 days to test the freshness, dry weight, nutrient content and volume change of whole and different components. It was found that with the delay of picking period, the water of epicarp gradually decreased, while the quality of walnut, crude fat and the like increased gradually. By comparison, walnut shell size and quality did not change significantly, in the 14d before ejaculation, the construction of endocarp has been completed, but to increase the quality of walnut. Picked earlier walnut dark shell, kernel degree rotten higher.