摘要
对玉米双苗的概念、双苗的自然发生频率、形态分类及其遗传规律进行了初步研究，对各类双苗在作物育种或栽培上的应用进行了探讨。
In this paper it is reported that double shoot in corn are first studied primarily on its concept, morpha, classification and hereditary law, and that studies on grain double shoot in plant breeding and cultivation and its significance in application.
关键词
玉米
双苗
分类
遗传
Corn
Double shoot
Classification
Heredity
