玉米不同层次叶片与单株产量的关系及实践意义研究

Studies on the Relationship between Different Course of Leaves and Single Plant Yield on Maize

为了研究玉米不同层次叶片与单株产量的关系及其在生产中的意义，我们于１９９６１９９８ 年用摘叶处理法开展了此方面的试验研究。初步探明，除最下部几片叶外，不同层次叶片对单株产量的影响大不相同，中部叶片（ 棒三叶） 的作用最大，上部叶片的作用大于下部叶片，特别是穗位叶片对百粒重及单株产量的影响最不明显。这对于育种工作及生产实践有很重要的意义。

Experiments were carried out during 1996~1998 to research the relationship between different course of leaves and single plant yield. The result showed that: Leaves at different course have different determinative effect sirgle plant yield. The three ear leaves play the most important role. Upper leaves are more positive than lower leaves. Especialy, ear leaves can make the most significaat effect on hundred kernal weight and single plant yield.