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通过上培试验和测试分析，比较了在不施肥与施肥条件下小麦籽粒产量（GY）、相对严量（RGY）、施肥增产率（GYIP）和相对生物量（RBY）的基因型差异。同时，采用RGY与GYIP相结合的方法，对供试100个小麦基因型进行了筛选，划分为耐低肥的高、中、低效基因型三类，依次各有25、59、16个品种（系）。本文还对这三类基因型的营养特性进行了探讨。
The differences of genotypes of grain yield (GY), relative grain weight (RGY), yield of fertilization (GYIP) and relative biomass (RBY) of wheat under no fertilization and fertilization were compared by the experiment of upper cultivation and the test analysis. At the same time, 100 wheat genotypes were screened by combining RGY and GYIP, divided into three types of high, medium and low efficient genotypes with low fat, followed by 25,59 and 16 varieties (system). This article also discussed the nutritional characteristics of these three genotypes.