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选育理想株型是当前玉米育种的重要目标之一。因此探讨构成株型的各性状的遗传规律,在理论和实践上都有其重要意义。 构成玉米株型的基本性状有:(1)株高和穗位高;(2)单株叶数及各叶层分布状(即密集状况);(3)叶片在茎秆上的着生状;(4)叶片大小及形态。
Breeding ideal plant type is one of the important goals of current corn breeding. Therefore, it is of great significance both in theory and in practice to explore the genetic law of each trait that constitutes plant type. The basic traits that make up the corn plant type are: (1) plant height and ear height; (2) number of leaves per plant and distribution of each leaf layer (ie, dense condition); (3) ; (4) leaf size and shape.