Abstract:

Cutting is widely used in production practice as an important technique of asexual reproduction. However, the low cutting rooting rate of some quality plants still restricts the rapid development of cutting propagation technology, and the key to improve the cutting rooting rate of plants is to find out the regulation mechanism. This article summarized the research on the mechanism of cutting rooting of plant from three aspects of morphology and anatomy, physiology and molecular biology during the adventitious root formation. Combined with the current research status at home and abroad, the process and mechanism of adventitious root formation were explained from the morphology and anatomy, the relationship between adventitious root formation and rooting was analyzed. The key molecular regulation mechanism of adventitious root formation and development was clarified. At present, the research on the rooting mechanism of plant cutting has gone deep into the molecular level from anatomy and physiology. Based on the development trend of molecular biology, it is proposed to use genetic engineering to improve the cutting propagation technology of plants, so as to achieve technological innovation, improve the quantity and quality of reproduction and adapt to the needs of production development.

Key words: Cutting Propagation, Rooting Mechanism, Morphology and Anatomy, Embedded Substance, Molecular Mechanism