Method and system for measuring spatial distribution of plant root system

Abstract

The invention belongs to the plant root spatial distribution technical field and relates to a method and system for measuring the spatial distribution of a plant root system. According to the method and system of the invention, image segmentation is performed on the video data of on original root system, a spatial scope to which original plant root system skeleton points belong is determined by using a voting principle; root system points are detected in images through the voting principle, the vertical ordinate of the center of an ellipse is calculated through using an ellipse equation; the positions of the original root system in different horizontal layers of a growth medium are determined according to the value of the vertical ordinate of the center of the ellipse; and the positions ofthe root system in different horizontal regions of the growth medium are determined according to the direction of the end coordinates of the semi-major axis of the ellipse. According to the method and system of the invention, the ratio data of the original root system are obtained; and the three-dimensional parameters of the form and configuration of the plant root system can be quantified by using the ratio data of the original root system, and in-situ and dynamic observation can be performed by using the ratio data. Conveniences can be provided for the scientific research of subject fieldssuch as root biology, plant nutrition, plant physiology and plant growth computer simulation.

Description

technical field [0001] The invention relates to the technical field of spatial distribution of plant roots, and more particularly, to a method and system for measuring the spatial distribution of plant roots. Background technique [0002] Crop yield is affected by factors such as light, water, soil nutrition, and variety. Under certain light environment and soil conditions, how to choose the best variety and how to plant optimally is an important research direction for agronomists. The root system characteristics of crops are the main factors that determine the quality of crop varieties. Studies have shown that the total length of roots (except hairy roots) of different varieties of the same crop is basically the same, but their distribution ratio in space is indeed very different. Therefore, the measurement of plant The role of the spatial distribution of root length (i.e., root topology) is to quantify the superiority and inferiority of plant species. [0003] In order to...

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Problems solved by technology

In addition, there is another problem that phosphate fertilizer is volatilized and lost quickly. The loss of phosphate fertilizer is not only a waste of phosphate fertilizer resources whose prices are soaring day by day, but also phosphate fertilizer is lost to rivers, lakes and seas. In addition to encouraging a large number of harmful plants, its phosphorus toxicity also directly Cause damage to aquatic organisms, especially animals. In order to exert the best fertilizer effect, it is necessary to consider the direction and depth of the plant next to the plant during the fertilization process, so as to keep the fertilizer in the area with the highest root distribution rate, so that the plants can absorb it easily. This is a new method of scientific fertilization

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