Citrus is a variety of fruit trees that is tolerant to shade, low temperature, and has good roots, gas and water. Its cultivation area is mainly in southern China. Although citrus is not freeze-tolerant, different varieties have different degrees of freeze-tolerance, and understanding the freeze-tolerance characteristics of different varieties of citrus is of great significance for the promotion and development of citrus cultivation in different regions. Since the environmental conditions in nature are variable and cannot be controlled artificially, understanding the relationship between plants and the environment, etc. During the experiment, artificial climate chambers are often used to create artificial climate environments. Scientific research and experimentation stress on excellence, so there are strict requirements for experimental conditions. The artificial climate room is a device that can manually adjust and automatically control the climate indoor greenhouse, humidity, light intensity and other environments. According to the experimental requirements, scientific researchers can flexibly unite various climatic conditions, freely combine various environmental parameters, and let plants in specific Under the environmental conditions of growth, the performance of the observation period, in recent years, the device has been widely used in plant life science research. In order to promote the development of the citrus industry, it is also necessary to use the equipment to carry out related research on citrus variety freezing tolerance. We know that in order to obtain high-quality and high-yield citrus cultivation, in addition to paying attention to water, fertilizer, climate and other conditions that are very suitable in production, the prerequisite is that the variety must be selected. Restriction is to choose varieties suitable for local climate characteristics, followed by growth characteristics and fruit traits. The application of the artificial climate chamber in the freeze tolerance test of citrus varieties helps to further distinguish the freeze tolerance characteristics of different citrus varieties, clarify the acceptable temperature of each variety, etc., and thus provide a basis for promoting suitable citrus varieties in different regions. This research can further guide the scientific production of citrus, give full play to the advantages of its varieties through management of facilities, refinement, and labor-saving, further improve the output and quality of citrus cultivation, and achieve important goals such as industrial rich peasants.
Submerged
arc welding plate is one of the most widely used mechanical welding methods in
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