Maize variety distinguishing method and system based on three-dimensional phenotype of maize tassel

Abstract

The invention provides a maize variety distinguishing method and system based on a three-dimensional phenotype of a maize tassel. The method comprises the following steps: marking a plurality of feature points around a target maize tassel, and collecting images of the target maize tassel at multiple viewing angles; constructing a three-dimensional model of the target maize tassel according to theimages under the multiple viewing angles; obtaining three-dimensional phenotype parameters of the target maize tassel based on three-dimensional model, wherein the three-dimensional phenotype parameters comprise an outer envelope volume, a total area of branch vertical projection, a plane aggregation degree, a space aggregation degree, a spindle variation coefficient, a crown-height ratio, a head-stem ratio and a gravity center; and distinguishing the maize variety of the target maize tassel according to the three-dimensional phenotype parameters. According to the method and system, the three-dimensional phenotype parameters of the maize tassel are scientifically from the three-dimensional perspective, and the maize varieties are accurately distinguished by using the difference of the three-dimensional phenotype parameters of different maize varieties, which is conducive to accelerating the maize breeding progress, and effectively improving the breeding efficiency and level.

Description

technical field [0001] The invention relates to the technical field of three-dimensional image processing, and more specifically, relates to a method and system for distinguishing corn varieties based on three-dimensional phenotypes of corn tassels. Background technique [0002] A corn tassel is a branching structure on top of a pollen-producing plant. After the male florets mature, the pollen falls with the wind to the corn silk of the ear of corn to complete pollination. The size and morphology of tassels affect pollen production, which in turn affects the maintenance of inbred lines, hybrid progeny and subsequent agricultural yield. Breeding hybrids with moderate tassel size is a trend in maize breeding. [0003] At present, the extraction of plant phenotype information by conventional breeding methods mainly relies on manual sampling and measurement. This process is not only time-consuming and laborious, but also cannot guarantee the accuracy of the measurement results...

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the problem in the prior art that corn varieties are only distinguished based on the two-dimensional phenotypic information of corn tassels, and the two-dimensional phenotypic information of corn tassels of different corn varieties may often be the same, making it difficult to accurately distinguish corn varieties problem, providing a method and system for distinguishing maize varieties based on the three-dimensional phenotype of maize tassels

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