Phenotypes are the outer appearance of organisms and comprise all visible and measurable features that can be assessed from outside without major interfering with the plant. Basically, this comprises counts, dimensions, colors, and other surface properties delivering structural phenotypic information. Moreover, phenotypes include physiological features, such as photosynthetic processes, water status, biochemical properties of the surface, or temperatures.
Phenotypic data are required in research, breeding, agricultural monitoring, in product developments of fertilizers, agrochemicals, or plant adjuvants, and many more applications. For data recording, high-resolution cameras, IR/NIR cameras, fluorescence imaging systems, laser scanners, or hyperspectral imaging systems are applied, and recorded image data are processed with advanced algorithms that extract phenotypic information out of the recordings.