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一、高粱的植物学特性了解和掌握高粱的形态与结构,不仅是植物学上的一项基本工作,同时对于培育高粱新品种和夺取高粱丰产都具有重大意义。1、根高粱为须根系,根系发达,具有吸收、输导养分水分和支持茎秆的作用。成长植株的根系,入土深度可达140～170厘米,横向分布范围可达60～120厘米,土壤干旱松软时,入土更深。高粱拔节以后,在茎基部的二、三节上,生有支持根,支持茎秆,以免倒伏,有时还有吸收养分和水分的作用。
First, the botanical characteristics of sorghum To understand and grasp the shape and structure of sorghum, not only a basic botanic work, at the same time for the cultivation of sorghum new varieties and sorghum yield are of great significance. 1, root sorghum is fibrous root system, root system developed, with absorption, transport nutrients and water to support the role of stalks. Growing plant roots, soil depth up to 140 ~ 170 cm, the horizontal distribution of up to 60 to 120 cm, the soil dry soft, deeper into the soil. After sorghum has been jointed, on the two or three nodes of the base of the stem, there are supporting roots and supporting stalks in order to avoid lodging and sometimes the functions of absorbing nutrients and water.