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编辑同志:你刊1981年第10期《玉米穗分化时期与植株外部形态及叶龄指数相互关系的研究》一文中,关于玉米“叶耳”的提法欠妥。禾本科作物的全叶一般包括叶鞘、叶片、叶舌、叶耳等,而玉米则例外,并无叶耳。所谓叶耳是指从叶舌两侧叶片基部边缘伸长出来的一对耳状突起物,而玉米叶片没有这种形态特征,故玉米“叶耳”的提法是不确切的。这一特征往往被人们忽略,甚至产生错觉,将叶片基部误作叶耳,作为玉米形态指标之一,因而导致了对玉米叶片形态特征观察和
Editor comrades: You No. 1981 No. 10 “maize ear differentiation and plant morphology and leaf age index of the relationship between the” one article on the corn “ear” is not properly referred to. The whole leaves of gramineous crops generally include leaf sheaths, leaves, leaf lugs, leaf ears and the like, with the exception of corn, which has no ear. The so-called auricles refer to a pair of ear-like protrusions extending from the edges of the base of leaves on both sides of the ligule, while the maize leaves do not have this morphological feature. Therefore, the formulation of corn “auricles” is not exact. This feature is often overlooked by people, and even illusion, the leaf base mistaken for the ear, as one of the morphological indicators of corn, which led to the observation of morphological characteristics of maize leaves and