出典:Wikipedia
出典:『Wikipedia』 (2009/07/17 09:19 UTC 版)
A dimorphic root system is a plant root system with two distinct root forms, which are adapted to perform different functions. One of the most common manifestations is in plants with both a taproot, which grows straight down to the water table, from which it obtains water for the plant; and a system of lateral roots, which obtain minerals.