New method for regulating and controlling water temperature in breeding process of low temperature sensitive sterile line of paddy

Abstract

The invention discloses a new method for regulating and controlling water temperature in the breeding process of the low temperature sensitive sterile line of paddy, mainly relating to the fields of paddy breeding and culture by relevant facilities. The new method comprises the following steps: digging a small underground water pumping well; arranging water pipes; installing an automatic and assistant regulation device for the temperature of flooding water; erecting a temperature probe in the middle of a pool, and connecting the temperature probe with a full-automatic temperature controller; and controlling a water pump to start or stop running; and installing the full-automatic temperature controller. Compared with the prior art, the method can precisely control the temperature of the water body in a paddy growth culture pool, has the advantages of low facility construction and operation cost, can greatly improve the maturing rate of the paddy so as to improve the seed selection efficiency of the paddy and obviously increase the seed selection profit for the paddy, is convenient in operation, is suitable for wide paddy culture areas and is especially suitable for areas where are hot in summer.

Description

technical field [0001] The invention relates to a new method for regulating water temperature in the process of breeding two-line sterile lines of rice, and the method is especially suitable for regulating water temperature in the process of breeding low-temperature-sensitive sterile lines. Belonging to the field of rice breeding and related facilities cultivation field, Background technique [0002] Rice is one of the most important food crops in China and the basic guarantee of food security in my country. Only by continuously improving rice production can the demand guarantee of the ever-growing population in rice-growing areas be met. According to statistical results, the contribution rate of variety improvement to rice yield increase is about 50%, and it is the basis of other rice yield increase factors such as improved fertilization measures and improved management methods. The selection of rice CMS is the basis of hybrid rice variety breeding, and the efficiency of ...

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Problems solved by technology

However, the construction of automatic constant temperature greenhouses requires expensive equipment costs and equipment operating costs, which are unaffordable for many breeding research institutes and enterprises, and have a great impact on the profits of large-scale production

Therefore, due to the limitation of low-temperature-sensitive sterile line technology, it is difficult to breed sterile lines at present, and few certified sterile lines have limited the selection and breeding of two-line hybrid rice varieties in my country.

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