Application Cases

Category: Leaf- and Shoot Phenotyping, Physiological Phenotyping, Stress and Disease Phenotyping

Chlorophyll Fluorescence serves as measure for the status and activity of the photosystem II. Analyzing images of chlorophyll fluorescence delivers photosynthesis-related data at whole-plant level. Measurements provide basic and maximum fluorescence of dark (F0, Fm) or light (F, Fm') adapted plants. These factors serve to calculate parameters such as Fv/Fm, NPQ, ETR and more. In phenotyping, such analyses are used to rate the physiological status of plants and to figure out the effects of stress, diseases, or environmental factors.

Category: Leaf- and Shoot Phenotyping, Physiological Phenotyping, Stress and Disease Phenotyping

Vegetation indices can be calculated from multispectral or hyperspectral measurements. A vegetation index is calculated from the spectral reflectance of a plant sample at two or more wavelengths. Such indices serve to characterize developmental or physiological properties of the plants. For instance, greenness indices relate to chlorophyll abundance, pigment-related indices refer to e.g., anthocyanin or carotenoids, or stress-related indices are responsive to biotic and abiotic stress factors. Dozens of indices are reported in the literature, and it is possible to establish customized indices, too.