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为了解决在品种基础上建立核桃工业种植场的迫切问题,和用产量作为品种的主要特征之一,我们研究了选择高产类型的方法,试验和实际利用的结果表明,这种方法精确,很少繁重劳动,适用于所有条件。作为选择的标准,不是用收获的果实的数量,而是产量的数值——在单位树冠侧面看到的果实平均数。这种单位一方面不应太小(避免果实数为零的单位的比重增加、变异系数和重复次数增加,以便达到规定精度),另方面也不应太大(引起
In order to solve the urgent problem of establishing walnut industrial plantations on the basis of varieties and to use yield as one of the main characteristics of cultivars, we studied the method of selecting high yield types. The results of experiments and actual utilization showed that this method is accurate and very few Heavy labor, apply to all conditions. Instead of using the number of fruits harvested, as the standard of choice, the value of yield - the average number of fruits seen on the side of the canopy. On the one hand, such units should not be too small (to avoid increasing the proportion of units with zero fruit, increasing the coefficient of variation and the number of repetitions in order to achieve the specified accuracy) and not too large