Plant root pressure and transpiration pull tester and testing method thereof
A technology of tension measurement and plant root, applied in the direction of instruments, analysis materials, etc., to achieve the effect of simple operation, field measurement and simple structure
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Embodiment 1
[0042] The present embodiment provides plant root pressure and transpiration tension measuring instrument, such as figure 1 As shown, it includes: a fixing mechanism and a measuring device, and the fixing mechanism includes: a measuring platform 9, a stem holder 7, a level 10; the measuring device includes: a glass tube 12, a valve 1, a valve 2, a valve 3, and a valve 4. Water storage tank 5, thermometer 8, rubber tube 11, rubber sleeve 6. Stem fixer 7, spirit level 10 and measuring device are all placed on the measuring platform; Rubber sleeve 6, valve 3, rubber tube 11, valve 4, water storage tank 5, valve 1, glass tube 12, valve 2 are connected successively.
[0043] Further, there is a uniform scale on the glass tube 12, which can read the volume of the gas. The inner diameter of the glass tube 12 can make water form a water column in the glass tube 12 according to the surface tension of the water. The calculated inner diameter is 0.1-50mm. should.
[0044]Further, the m...
Embodiment 2
[0053] The present embodiment provides plant root pressure and transpiration pull measuring method, such as Figure 4 with 5 shown, including the following steps:
[0054] (1) Experiment preparation: Take the above-mentioned plant root pressure and transpiration tension measurement system to the greenhouse or field, and adjust the height of the measuring platform 9 to be equivalent to the section of the stem to be cut.
[0055] (2) Glass tube water injection: hold one end of the glass tube valve 2, make the glass tube 9 vertical, tie the rubber sheath 6 with a string, connect the valve 3 with a syringe, open the valve 2, and fill the glass tube 9 with water until The water surface rises to the glass tube 2 / 3 and stops, and the valve 2 is closed at the same time.
[0056] (3) Connect the section of the plant stem: Gently cut off the stem of the plant to be tested to make the section flat, put the rubber sleeve 6 on the section, and wrap it with a parafilm for several weeks to...
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