不同玉米群体内部植株相似性的研究

对山西中部种植的不同夏玉米群体株间相似性进行研究，结果表明：在每一夏玉米群体内部植株的单叶面积、叶层距、单叶光合势、单叶干物质等在不同叶位上的分配都表现为不同程度的株间相似性，其中，单叶面积分配比例的相似性稳定性地高于其它指标，分析其原因为群体对个体各个指标的调节能力不同所致。各个指标依叶位的分配规律均可极显著地配置相应的数学模型。此研究可以为夏玉米群体生长状况的测报工作和模糊模拟提供理论依据。

Plant similarity studies within different summer corn populations

The paper studied the similarity with respect to single leaf distribution among plants within different summer corn populations in the middle regions of Shanxi province.The results showed that single leaf area distribution is more similar than the other distribution of leaf layer spacing,leaf dry weight and leaf photosynthesis power significantly.The explaination for this is that populations by themselves regulated the four traits of leaf distributions in different extents.All traits of leaf distributions were represented with the mathematic models.The results provided theory clues to forcasting and models simulation of the growth status of summer corn populations.