A poplar chimera with stable differentiation regulation

Abstract

Populus shenzhou, a chimera, is divided into three types: A, B, and C. Among them, Type B is the chimera of Type A and Type C. Type B of P. shenzhou, as a progenitive material was cut and differentiated stably into Type A, Type B, and Type C, at an average differentiation rate of approximately 79.6%, 18.3%, and 2.2%, respectively. The studies on SSR identification of P. shenzhou showed that all tissues, including the bud, leafstalk, leaf nervation, phloem, and xylem, were a chimera. There were two kinds of color roots of the three types. The rufous roots were identified as Type A tissue and the yellow roots as Type C tissue by the SSR molecular markers.

Research on the Improvement Path of Agricultural Supply Quality Based on Pre-control under the "Internet +"

“…At present, the research on the quality and safety of agricultural assets has not been involved. Therefore, under the opportunity of Internet +, agricultural assets It is an important research direction in the future to conduct a more systematic and in-depth study on product quality and safety and to build a quality and safety control system for agricultural products to adapt to the development of the new era [5,6]. According to the changes of the supply chain system of agricultural products brought about by "Internet +", this paper determines the customer demand and weight of the quality and safety control of agricultural products through the analytic hierarchy process, formulates preventive measures, establishes the evaluation dimensions and standards of the supply quality of agricultural products in view of the problems in the quality and safety control of agricultural products, strengthens the focus and operability of the measures, and constructs the HACCP system based on it.…”