Root division culture device for forest trees

Abstract

The invention discloses a root division culture device for forest trees. The root division culture device comprises a central block, four nutrient liquid cylinders uniformly arranged on the outer sideof the central block, and adjusting components arranged in the nutrient liquid cylinders. A fixing groove is formed at the inner top end of the central block, and a pyramid is arranged at the inner bottom end of the fixing groove. The nutrient liquid cylinders are arranged on the side wall of the central block, and are internally provided with nutrient liquid cavities. Root openings are formed inpositions, between the bottom end of the pyramid and the nutrient liquid cavities, of the central block. The root division culture device has the advantages that the growth conditions of seedling roots and the level of nutrient liquid can be observed through an observation window; when the level of the nutrient liquid is lowered, the nutrient liquid is located in the nutrient liquid cavities at the tops of pistons, and pull rings are pulled to move the pistons upwardly through piston rods to increase the level of the nutrient liquid, so that the level of the nutrient liquid is constantly keptat the positions of the root openings, the roots are constantly kept in the nutrient liquid, and frequent supplementation of the nutrient liquid is not needed.

Description

technical field [0001] The invention relates to the technical field of split root cultivation devices, in particular to a split root cultivation device for forest trees. Background technique [0002] Split-root culture refers to a pot experiment in which the roots of the same plant are separated and cultured in different nutritional environments. It is mainly used to study the nutritional characteristics of plant roots, the nutrient transport mechanism between the root system and the aboveground, etc. The split-root test can be based on different media for root growth. Divided into: 1. Liquid-liquid split root test; 2. Liquid-solid split root test; 3. Solid-solid split root test. The solid growth medium can be soil or sand according to the purpose of the test. [0003] The traditional split-root cultivation device is to fix the plant seedlings on a cultivation board, and the nutrient solution cultivation pot is separated into two nutrition chambers by a middle partition. Th...

AI Technical Summary

Problems solved by technology

The defect of this type of device is that it cannot fix the plant seedlings better, or when fixing a plant seedling, it will also affect the fixation of other plant seedlings. Because the roots of the plant seedlings are relatively short in length at the beginning, the roots of the plant seedlings are relatively short. After absorbing the nutrient solution for a period of time, the liquid level of the nutrient solution will decrease, so that the roots of the plant seedlings cannot touch the nutrient solution, and the nutrient solution needs to be added again, which is very troublesome and causes errors in the exploration results

Images