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对3个玉米品种晋单45号、忻0003-1×忻9814-3-1、忻单226叶龄指数与穗分化及外部形态的对应关系进行了研究,结果表明:雌雄穗分化期有一定的对应关系;穗分化与外部形态互相协调生长;晋单45号与忻0003-1×忻9814-3-1主茎总叶片数大体相同,幼穗分化时期基本一致;3个品种相同的穗分化阶段的叶龄指数基本一致。
The correlations between leaf age index and spike differentiation and external morphology of three maize varieties Jindan 45, Xin 0003-1 × Xin 9814-3-1 and Xindan 226 were studied. The results showed that there was a certain The spike differentiation and external morphology coordinated with each other. The total number of main stems of Jindan 45 and Xin 0003-1 × Xin 9814-3-1 were basically the same, and the differentiation period of young spike was basically the same. The same panicles Leaf age at the differentiation stage was basically the same.