Monitoring method of root system of seedlings propagated by horizontal layering of apple rootstock

Abstract

The invention relates to a research method for growth dynamic conditions of a plant root system, in particular to a method for monitoring plant root system growth in a horizontal mound layering process of apple stocks. The method comprises steps as follows: the annual apple stocks are horizontally planted in the ground in spring, buds on the back of the plants are processed and are accelerated to germinate before germination of the stocks, a quantitative number of appropriate new shoots is reserved when the new shoots grow to 15 cm, a minirhizotron is horizontally arranged between the stocks and covered with saw dust, and the rooting condition and the late root system growth dynamics in the horizontal mound layering process of the apple stocks are monitored by a root system scanning instrument regularly. According to the method for monitoring the plant root system growth in the horizontal mound layering process of the apple stocks, the growth dynamic condition of a seedling root system in the horizontal mound layering process of the apple tree stocks is researched, direct observation for the seedling root system and rapid and accurate measurement and analysis for morphological parameters are realized, and the direct, efficient and reliable research method is provided for screening of the apple stocks with the high propagation coefficient in the horizontal mound layering process.

Description

technical field [0001] The invention relates to a method for studying the dynamic state of plant root growth, in particular to a method for monitoring root growth of apple rootstock horizontal layering propagation seedlings. Background technique [0002] Layering propagation is a common method for the production of fruit tree seedlings, and the use of layering propagation can obtain clonal seedlings, especially the excellent rootstocks of fruit trees mainly rely on clonal propagation. During the process of layering propagation, the occurrence of lateral roots, the growth and development of root system and the rate of rooting are the key to evaluate the success of layering propagation. Since the root system of layering propagation grows under the mulch, it is difficult to accurately observe and measure the root system during layering propagation. The traditional root observation methods for layering propagation of fruit trees are excavation method, whole specimen method, pro...

AI Technical Summary

Problems solved by technology

The traditional root observation methods for layering propagation of fruit trees are excavation method, whole specimen method, profile method, etc., but these methods have the disadvantages of sampling destruction and heavy workload, and this method is generally carried out at the end of layering growth, which is not conducive to early detection. Evaluation of layering reproductive characteristics

As a result, the management of the root system in the process of layering and propagation of fruit trees is not timely, and the acquisition of root growth data is not systematic, etc.

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