Figure 4: Dynamics of MaxW/MaxD ratio (ratio of maximum width to maximum depth of wheat RSA).
From: Phenotyping for the dynamics of field wheat root system architecture
MaxW/MaxD ratio describes whether root system is preferentially elongated horizontally or vertically, a unique feature of root-soil interactions. MaxW/MaxD ratio explains whether the root system development is shallow or deep, and whether gravitropism or thigmotropism plays the decisive role.
