Analysis of Germplasm Resources in China

Germplasm resources are also called genetic resources. Germplasm refers to the genetic material passed from the parent to the offspring of the crop, and it is often found in specific varieties. For example, old local breeds, newly cultivated popular varieties, important genetic materials and wild relatives belong to the range of germplasm resources. The germplasm resource bank is used to preserve germplasm resources, and the structure has advanced thermal insulation and moisture-removing structure and air-conditioning equipment. It maintains a low-temperature and dry environment all year round, slows down the metabolism of seeds, and extends the lifespan of seeds, so that the seeds are still not available for several to nearly 100 years. Loss of hereditary and germinating ability.

To date, more than 500 germplasm resource banks have been established in the world and more than 1.8 million germplasm resources have been collected. Among them, there are 1.2 million cereals, 350,000 pulses, 80,000 roots and 200,000 feeds. Founded in the 80s in the United States in the Fort Collins, Colorado, genebank, it is the world's largest collection of germplasm, collecting over 200,000 germplasms. The National Germplasm Bank of the Chinese Academy of Agricultural Sciences in Beijing has collected more than 330,000 germplasms. The genebank has laid a rich material foundation for the study of the origin and evolution of crops and for the cultivation of new varieties of crops.

The National Germplasm Bank of China was established in the Chinese Academy of Agricultural Sciences in October 1986 and is part of the Institute of Crop Germplasm Resources. Its capacity can save more than 400,000 germplasms. Germplasm storage conditions: temperature -18 Â°C Â± 1 Â°C, relative humidity less than 50%. The national germplasm conservation target is the germplasm resources of crops and their close wild plants. These resources use seeds as the carrier of germplasm, and their seeds can withstand low temperature and dryness and dehydration. The establishment of a crop germplasm resource bank has led to unprecedented changes and advances in China's agricultural production. Some crops use hybrid advantages to achieve world-leading levels. In addition, other biotechnologies, such as radiation mutagenesis and chemical mutagenesis, All make use of the genebank. Therefore, it is very necessary to establish and improve the database of crop germplasm resources.

Mid Motor

The central Ebike Motor we are referring to here is a central Ebike Motor used on lithium-ion assisted Electric Bicycles, while the common one is the Ebike Motor used on Lithium Battery mountain assisted bicycles. It was developed and put into use after the hub motor, and compared to the hub motor, the technology of the central motor is not yet very mature, so there is still a long way to go in terms of performance stability. But the central motor has a characteristic that hub motors do not have, which is its instantaneous starting assistance function, so it also has a corresponding market. The most common method is to install a center mounted motor on a mountain Electric Bike to meet the bumpy road conditions in the mountains, so both hub motors and center mounted motors have their advantages and disadvantages. The choice of motor depends entirely on which aspect of its functionality you value.Generally Speaking, the central motor is used to assist mountain bikes, and hub motors are more common on urban series of assist Electric Bicycles .

Electric Bicycle Motor ,Mid Motor,Ebike Motor

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