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利用３２Ｐ示踪技术对湖北省９个小麦品种（系）的研究结果表明：孕穗至抽穗期，代谢中心在各器官主次之分不明显，物质分配中心和养分需求强度部位一致，主要是茎，其次为叶、穗；抽穗至灌浆期，代谢中心为叶片，物质分配中心和养分需求强度顺序为茎＞穗＞叶；灌浆至成熟期，代谢中心、分配中心和养分需求强度部位表现一致，主要部位是穗，其次为茎、叶。不同品种根系吸收速率高峰期多数在灌浆期。子粒产量与子粒３２Ｐ总活度有显著正相关关系（ｒ＝０７１３１）。
The results of the study on 9 wheat cultivars (lines) in Hubei Province using 32P tracing technique showed that the metabolism centers were not obvious in the primary and secondary organs of each booting stage, and the centers of material distribution and nutrient intensity were the same, mainly stem , Followed by leaves and spikes. From heading to filling stage, the metabolic center was leaves, and the order of material distribution center and nutrient intensity was stem> ear> leaf. The grain filling to maturity, metabolism center, distribution center and nutrient intensity were consistent, The main part is spike, followed by stems and leaves. The root absorption rate of different varieties most of the peak filling period. There was a significant positive correlation between grain yield and total 32P activity (r = 07131).