A method for inhibiting the development of lateral roots of Pingyi sweet tea

Abstract

The invention discloses a method for inhibiting lateral root development of malus hupehensis. The method comprises the steps that a malus hupehensis seedling is transplanted to a 1 / 2Hoagland hydroponics nutrient solution; and the MeJA treatment concentration is 0.2 mg / L, normal management is conducted after treatment for one week, the nutrient solution is replaced once a week, and cultivation is conducted for one month. The lateral root number, the plant height and the stem diameter of the malus hupehensis seedling are inhibited through MeJA treatment, the root length, the root surface area and the root volume are decreased through 0-7d after MeJA treatment, and the value for treating 14-28d is increased; lateral root development is inhibited through MeJA, and the lateral root number is decreased; a certain theoretical basis is provided for lateral root development of apples; the method has a very important significance in guiding stock breeding in actual production and providing cultivation measures; and lateral root development is inhibited through MeJA treatment, and thus the harm to the environment can be reduced. The lateral root growth amount is inhibited after MeJA treatment, and the root system overall activity and the water and nutrient utilization rate are inhibited.

Description

technical field [0001] The invention belongs to the technical field of planting economic crops, and in particular relates to a method for inhibiting the development of lateral roots of Pingyi sweet tea. Background technique [0002] The plant root system is an important organ for absorbing water and nutrients, and the lateral roots are an important part of the plant root system. There is a long history of research on lateral root development, most of which focus on the herbaceous plant Arabidopsis (Meyerowitz, 2001). However, in woody plants, especially in economic crops, the research on lateral root development lags behind. To a certain extent, it has caused difficulties in carrying out practical work such as breeding of economic crops targeting the excellent trait of root system. It is well known that the occurrence and development of lateral roots are jointly affected by endogenous plant hormones and external environmental factors. Among the five classic plant hormones,...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for inhibiting the development of lateral roots of Pingyi sweet tea, aiming to solve the problem that the existing technologies for inhibiting the development of lateral roots are all concentrated on heavy metal ions, which are harmful to the environment and are not conducive to the normal growth of plants

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