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苹果、梨的果实表面积,与果实的呼吸和蒸腾密切相关;在果实与叶子的呼吸和蒸腾强度的比较中,能够起统一单位的桥梁作用。1983～1984年,我们对莱阳,青岛、烟台等地的七个苹果品种和四个梨品种,抽样进行了果实表面积的测定。首先试用了贴纸法和剥皮法,结果都很难实施。从“微积分”对不规则图形面积区分求和的原理中得到启发,经过反复试验,设计了区分圆台法。应用证明,该法简单有效,精确度高,适于苹果、梨的各种果形。
The fruit surface area of apples and pears is closely related to the respiration and transpiration of fruits. In the comparison of the respiration and transpiration intensity of fruits and leaves, it can serve as the bridge unit of a unified unit. From 1983 to 1984, we sampled seven apples and four pear cultivars in Laiyang, Qingdao and Yantai, and sampled the fruit surface area. First try the sticker method and stripping method, the results are difficult to implement. Inspired by the principle of differentiating calculus from calculus, Calculus devised the method of distinguishing between circles by repeated experiments. Application shows that the method is simple and effective, high precision, suitable for apple, pear variety of fruit shape.