root-end cavities
root-end filling
root-end filling materials
root-end resection
root-knot nematode
root-knot nematodes
root-mean-square deviation
root exudates
root exudation
root filling
root fly
root formation
root fracture
root fractures

root function
root ganglion
root ganglion neurons
root growth
root hairs
root herbivory
root infection
root injury
root instrumentation
root length
root length density
root level
root longevity
root mass
root mean

root mean square
root mean square deviation
root mean square error
root mean square roughness
root mean square values
root meristem
root morphology
root mortality
root nodules
root parasite
root pathogens
root penetration
root planing
root planning
root powder

root processes
root production
root ratio
root regions
root replacement
root resorption
root respiration
root samples
root segments
root sheath
root structures
root surface
root system
root system architecture
root tests

root thirds
root tips
root tissue
root traits
root treatment
root turnover
root uptake
root yield
root zone