The present application belongs to the technical field of
plant morphology, and particularly relates to a seed
plant propagule three-dimensional shape measurement method based on a video stereomicroscope, comprising: collecting seed
plant propagules at the
mature stage and air-
drying to a constant weight; classifying the propagules according to the seed, fruit shape and surface
accessory structure, and determining the measurement criteria of the shape of different categories of propagules; scanning the three-dimensional structure of each category of
propagule by using a video stereomicroscope, and accurately measuring the shape parameters length, width and thickness of the
propagule; normalizing each category of propagule, calculating the
shape index of the propagule, and representing the closeness to a spherical shape. The method quantifies the complex three-dimensional shape characteristics of the seed plant propagule into a comprehensive
shape index, realizes accurate quantitative measurement and
digitization of the morphological characteristics of the propagule, solves the pain point of determining the shape of the propagule by using a traditional observation tool, and facilitates the comparative identification of the three-dimensional shapes of different categories of seed plant propagules.