3results about How to "Save land resources" patented technology

The present application belongs to the technical field of plant induced regeneration, and particularly relates to a high-efficiency artificial propagation method of Dendrobium candidum, comprising the following steps: taking two-year-old stem segments with nodes as materials, cutting the stem segments into appropriate sizes, and disinfecting the stem segments; and culturing the stem segments in a culture medium A for 90 days, and then completing the proliferation and rooting integration through a direct organogenesis route. The present application realizes the cyclic production of Dendrobium candidum, and the whole culture process can be completed only by using one culture medium, greatly improving the artificial in-vitro propagation efficiency, and the proliferation coefficient is completely comparable to the seed asymbiotic germination method, and the problems of large offspring trait separation and different qualities caused by the seed asymbiotic germination are solved, and the quality and yield of seedlings are greatly improved. The present application can provide a brand-new technical support for the factory-scale growth of Dendrobium candidum, so as to achieve the purpose of cultivating seedlings with genetic stability and excellent quality to improve the artificial planting efficiency, and the cost is low, the cycle is short, and the quality and survival rate of seedlings are high.

This utility model relates to the field of design optimization technology for noise reduction frame foundations and circulating water pipe foundations in thermal power plants. It aims to solve the problem in existing technologies where, in thermal power plants, mechanical ventilation cooling towers, heavy-duty roads, and the main plant building are arranged adjacent to each other, and the space for circulating water pipes is limited due to land constraints. Furthermore, when these pipes are placed within the load-bearing area of ​​heavy-duty roads, the heavy vehicle loads can cause the circulating water pipes to buckle and deform, affecting their normal operation. The utility model provides a compact, combined arrangement structure for noise reduction frames and circulating water pipe foundations in thermal power plants. This structure includes a noise reduction frame arranged outside the mechanical ventilation cooling tower, a circulating water pipe arranged below the noise reduction frame, and a circulating water pipe foundation arranged below the circulating water pipe. A support frame is provided above the circulating water pipe foundation, and the circulating water pipe is arranged within the support frame and supported on the foundation. The noise reduction frame is located above the support frame and supported on it.

The application discloses a parent-offspring identification primer group and method of Prunus. The parent-offspring identification primer group of Prunus disclosed by the application is composed of 30 single-stranded DNAs shown in sequence 1 to sequence 30 in a sequence list. The primer group and method of the application can identify the genetic relationship of Prunus armeniaca, Prunus dulcis and their offspring, establish a parent-offspring identification system, and are simple to operate. The primer group and method of the application can quickly obtain genetic information of Prunus parents and offspring and determine the source of the offspring, can early determine and retain hybrid offspring between Prunus armeniaca and Prunus dulcis at the seedling stage, which is beneficial to quickly determine the true outcrossing seedling at the seedling stage, thereby removing hybrid offspring caused by natural pollination and eliminating the hybrid offspring at the seedling stage, so as to save land resources, reduce the identification cost in the later period, speed up the breeding process, and also provide a reference for parent-offspring identification of other fruit plants.