Yes in deed. Plant phenotyping requires plant phenotyping platform if you are dealing with high throughput materials. It also depends on which plant part you want to phenotype, the root or the shoot. For shoot phenotyping, if you are dealing with small samples you can take series of images and generate quantitative data using image analysis software. However, for root phenotyping, nondestructive method is definitely expensive but not impossible.
Plant phenotyping is the comprehensive assessment of complex plant traits such as growth, development, tolerance, resistance, architecture, physiology, ecology, yield, and the basic measurement of individual quantitative parameters that form the basis for the more complex traits.
There are some methods for non-destructive phenotyping, for example you can use from handy Plant Efficiency Analyzer (PEA) to determine chlorophyll a fluorescence emotion. This technique allows evaluating plant vitality especially photosynthesis efficiency under unfavorable environmental conditions through analysis of the fluorescence transients.