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

A new method, rice technology, applied in the field of water temperature control in the breeding process of low-temperature-sensitive male sterile lines, can solve the cost of expensive equipment and equipment operation costs in automatic constant temperature greenhouses, limit the breeding of two-line hybrid rice varieties, and scale production profits Great impact and other issues, to achieve the effect of low operating costs, low construction costs, and constant water temperature

Inactive Publication Date: 2011-05-25
HUNAN RICE RES INST
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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

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0025] ① Construction of small-scale groundwater pumping wells: build a small-scale pumping well near the water inlet of the rice growth and cultivation pond, with a depth of about 30m (it can be determined according to the groundwater level, but in order to ensure that the water temperature is constant at 18-19°C, a well depth of about 30m is recommended), Water is supplied by a small pressure pump.

[0026] ②Water pipe layout: the outlet of the pressure pump is connected to the water pipe, and the water pipe is connected to a volume of 2m before entering the rice growth and cultivation tank 3 In the water tanks of left and right sizes, the size of the water tank is determined according to the size and water depth of the cultivation pool, and the volume is about 1 / 10 of the total amount of water in the pool. After the groundwater passes through the water tank, the water pipes are evenly laid on the pool wall and in the pool, as shown in the design drawing. In addition to lay...

Embodiment 2

[0032] 1. Construction of small groundwater pumping wells: Drill a small pumping well near the water inlet of the rice growth and cultivation pool, with a depth of about 30m (it can be determined according to the groundwater level, but in order to ensure that the water temperature is constant at 18-19°C, the recommended well depth is about 30m), Water is supplied by a small pressure pump.

[0033] 2. Water pipe layout: the outlet of the pressure pump is connected to the water pipe, and the water pipe is connected to a volume of 4m before entering the rice growth and cultivation tank. 3 In the water tanks of left and right sizes, after the groundwater passes through the water tank, the water pipes are evenly laid on the pool wall and in the pool, as shown in the design drawing. In addition to laying water pipes along the pool wall, one water pipe is laid every 2.5 meters in the pool. On the wall of the pool, water jets are evenly arranged on the side of the pool and on both si...

Embodiment 3

[0039] 1. Construction of small groundwater pumping wells: Drill a small pumping well near the water inlet of the rice growth and cultivation pool, with a depth of about 30m (it can be determined according to the groundwater level, but in order to ensure that the water temperature is constant at 18-19°C, the recommended well depth is about 30m), Water is supplied by a small pressure pump.

[0040] 2. Water pipe layout: the outlet of the pressure pump is connected to the water pipe, and the water pipe is connected to a volume of 2.5m before entering the rice growth and cultivation tank. 3 In the water tanks of left and right sizes, after the groundwater passes through the water tank, the water pipes are evenly laid on the pool wall and in the pool, as shown in the design drawing. In addition to laying water pipes along the pool wall, one water pipe is laid every 1.5 meters in the pool. On the wall of the pool, water jets are evenly arranged on the side of the pool and on both ...

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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 ...

Claims

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Application Information

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IPC IPC(8): A01G9/02A01G9/24
CPCY02A40/25
Inventor 曾翔
Owner HUNAN RICE RES INST
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