CN204044017U - A kind of device simultaneously inducing multiple xyle embolism - Google Patents
A kind of device simultaneously inducing multiple xyle embolism Download PDFInfo
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- CN204044017U CN204044017U CN201420455913.8U CN201420455913U CN204044017U CN 204044017 U CN204044017 U CN 204044017U CN 201420455913 U CN201420455913 U CN 201420455913U CN 204044017 U CN204044017 U CN 204044017U
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Abstract
The utility model discloses a kind of device simultaneously inducing multiple xyle embolism.It comprises: an admission gear; One barometric surveying and control gear; Described barometric surveying and control gear comprise a three-limb tube, and an outlet of described three-limb tube is connected with a rain glass, and another 1 outlet is connected with described admission gear, and this connectivity part is provided with gas admittance valve and air intake control valve; One sample placement mechanism; 3rd outlet of described three-limb tube is connected with sample placement mechanism described in several by several rapid-acting couplings.The utility model can induce the device of multiple xyle embolism simultaneously, has that structure is simple, good leak tightness, induces the advantage of multiple material plug simultaneously; In structure and making, be linked as master with instant, convenient disassembly, be easy to preserve.Meanwhile, above-mentioned can induce simultaneously the device of multiple xyle embolism measure plant sample time have be easy to control, measure the features such as efficient and accurate.
Description
Technical field
The utility model relates to a kind of device simultaneously inducing multiple xyle embolism, belongs to xyle embolism determinator field.
Background technology
Water is a key factor in plant physiological processes, is the transportation media of Metabolites In Plant Cell, is photosynthetic and respiratory important source material, can also maintains plant structure.Physiological Activities of Plants being in great demand to water, the Water Transportation ability of plant is the key factor affecting plant moisture supply situation.Plant water transport mechanism is the (Li Jiyue be based upon on the basis of cohesion tension theory, 2002), namely moisture forms negative pressure by Stoma of Leaves transpiration under branch, stem and the effect of root xylem water column tension force, and hydrone cohesion just keeps the continuity of water column.The conduit caused when drought stress or the flow of water of test-tube baby have exceeded the threshold value that xylem limits and have just defined embolism, and air can enter (Zimmermann M H, 1983) near the space of having been filled by air (air seeding).Sapwood embolism is inevitable " usual event " (Mccully M E in growing process, 1998), and plant photosynthetic rate, stomatal conductance, there is certain correlationship between transpiration rate and water use efficiency, its generation and recovery are the one mechanism that certain plants adapts to water stress.Vulnerability of Xylem Embolism can describe with " vulnerability curve " (VC), represents the relation between Xylem water potential and embolism degree, is made up of xylem water guide loss percentage (PLC) and the flow of water (Ψ) under this state.The result of study of numerous scholar shows, vulnerability curve can provide many physiological ecological information of concerned plant, and there is certain relation, wherein P between the xylem structure of plant, position, the distribution of plant, cold-resistant, drought resistance etc.
50(flow of water corresponding during hydraulic conductivity loss 50%) can be used as with the magnitude relationship of the flow of water at high noon the index evaluating Genes For Plant Tolerance embolism ability.Therefore, being determined in plant water transport research of Vulnerability of Xylem Embolism curve is widely used.
Now in experimental study, the mode of artificial induction's embolism has multiple, is mainly natural seasoning, chamber method (air injection), centrifuge method etc.Natural seasoning mainly relies on plant self dehydration to obtain different embolism degree, and speed is comparatively slow, and required experiment material is more, and each all need measures the flow of water, rinses maximum hydraulic conductivity; Pressure chamber's rule by Manual pressurizing, makes gas enter flora conduit and causes embolism, speed, and the flow of water residing for each constant pressure and plant, only need rinse once maximum hydraulic conductivity; Centrifuge method is by under the centrifugation of hydro-extractor, makes embolization catheter, and obtains Xylem water potential by physical equation conversion.
Utility model content
The purpose of this utility model is to provide a kind of device simultaneously inducing multiple xyle embolism, described device can induce the xyle embolism of multiple plants shoots simultaneously, it utilizes douche principle and artificial cavitation measuring instrument principle, Vulnerability of Xylem Embolism curve can be measured fast, accurately, be specially adapted to brachyplast bar in scientific research and few side shoot vegetable material, have measurement range wide, be easy to the features such as control operation is simple.
The device simultaneously inducing multiple xyle embolism provided by the utility model, comprising:
One admission gear;
One barometric surveying and control gear; Described barometric surveying and control gear comprise a three-limb tube, and an outlet of described three-limb tube is connected with a rain glass, and another 1 outlet is connected with described admission gear, and this connectivity part is provided with gas admittance valve and air intake control valve;
One sample placement mechanism; 3rd outlet of described three-limb tube is connected with sample placement mechanism described in several by several rapid-acting couplings.
Above-mentionedly can induce in the device of multiple xyle embolism, the inlet suction port that described admission gear comprises a nitrogen pot and is connected with described nitrogen pot, one end of described inlet suction port is connected with nitrogen decompression table simultaneously.
Above-mentionedly can induce in the device of multiple xyle embolism, described admission gear is connected with described gas admittance valve by long source of the gas line simultaneously.
Above-mentionedly can induce in the device of multiple xyle embolism, described long source of the gas line is all connected by resistance to compression mantle fiber steel pipe with between described admission gear and described gas admittance valve simultaneously.
Above-mentionedly to induce in the device of multiple xyle embolism simultaneously, the 3rd outlet of described three-limb tube is connected with venting operation valve and safety valve.
Above-mentionedly can induce in the device of multiple xyle embolism, described rapid-acting coupling is connected with described sample placement mechanism by source line of losing heart simultaneously.
Above-mentionedly to induce in the device of multiple xyle embolism, described sample placement mechanism one sample placed cavity and two plugs, the perisporium in described sample placed cavity is provided with an annular protrusion, and the both ends open of described annular protrusion and described cavity is provided with spacing simultaneously; The end face of described plug is provided with a circular hole;
Described sample placement mechanism also comprises rubber blanket and sheet metal, and described rubber blanket and described sheet metal are equipped with circular hole;
Described rubber blanket and described sheet metal are located in described sample placed cavity, and can be fixed on described annular protrusion;
The two ends of described plug and described cavity for being sealed and matched, and with described rubber blanket for being sealed and matched, to strengthen the sealing to branch in chamber.
Above-mentionedly to induce in the device of multiple xyle embolism simultaneously, between described cavity and described plug, to pass through threaded engagement.
Above-mentionedly can induce in the device of multiple xyle embolism, described rubber blanket is spherical rubber pad simultaneously;
Described sheet metal is half recessed sheet metal, for being sealed and matched between described sheet metal and described rubber blanket.
The utility model can be induced in the device of multiple xyle embolism simultaneously, when measuring, by ready branch successively through having in the sample placement mechanism of suitable large small sircle hole, then screws.
The utility model can be induced in the device of multiple xyle embolism simultaneously, when measuring, according to required pressure fitted rain glass adjustment gas admittance valve, can induce embolism in various degree, after by air release, gas is discharged.
The utility model can induce the device of multiple xyle embolism simultaneously, have that structure is simple, good leak tightness, induce the advantage of multiple material plug simultaneously: selected accessory is industry or accessory is commonly used in laboratory, as: T-valve, pressure-resistant steel tube, rapid-acting coupling, its cheap market price and be standard configuration, sealing property and compressive property good, security performance is high; In structure and making, be linked as master with instant, convenient disassembly, be easy to preserve.Meanwhile, above-mentioned can induce simultaneously the device of multiple xyle embolism measure plant sample time have be easy to control, measure the features such as efficient and accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model can induce the device of multiple xyle embolism simultaneously.
Fig. 2 is the structural representation that the utility model can induce the sample placement mechanism of multiple sapwood embolism gasifying device simultaneously.
In figure, each mark is as follows:
Lose heart source line, 12 sample placed cavities, 13 rapid-acting couplings, 14 venting operation valve outlets, 15 gas admittance valves, 16 half recessed sheet metals, 17 spherical rubber pads, 18 annular protrusions, 19 external threads, 20 of 1 long source of the gas line, 2 three-limb tubes, 3 nitrogen decompression tables, 4 inlet suction ports, 5 nitrogen pots, 6 resistance to compression mantle fiber steel pipes, 7 rain glasss, 8 air intake control valves, 9 venting operation valves, 10 safety valve, 11 change silk mouths, 21 mantle fiber circular holes, 22 circular holes, 23 plugs, 24 internal threads.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1, for the utility model can induce the device of multiple xyle embolism simultaneously, it comprises admission gear, barometric surveying and control gear and sample placement mechanism.Wherein, the inlet suction port 4 that admission gear comprises a nitrogen pot 5 and is connected with nitrogen pot 5, one end of this inlet suction port 4 is connected with nitrogen decompression table 3.Barometric surveying and control gear comprise a three-limb tube 2, an outlet of this three-limb tube 2 is connected with rain glass 7, another 1 outlet is connected with nitrogen pot 5 by long source of the gas line 1, and long source of the gas line 1 is connected by resistance to compression mantle fiber steel pipe 6 with between this outlet.Gas admittance valve 15 and air intake control valve 8 is provided with in above-mentioned connectivity part.3rd outlet of this three-limb tube 2 is connected with venting operation valve 9, venting operation valve outlet 14 and safety valve 10, this outlet is connected with 3 sample placement mechanisms (only illustrating 1 in figure) respectively by 3 rapid-acting couplings 13, be connected with mantle fiber circular hole 21 particular by conversion silk mouth 20, as shown in Figure 2.
As shown in Figure 2, sample placement mechanism of the present utility model comprises sample placed cavity 12 and two plugs 23, perisporium in sample placed cavity 12 is provided with annular protrusion 18, and this annular protrusion 18 is provided with spacing with the both ends open of sample placed cavity 12, and the end face of plug 23 is provided with a circular hole 22.This sample placement mechanism also comprises tool round-meshed spherical rubber pad 17 and half recessed sheet metal 16.Spherical rubber pad 17 and half recessed sheet metal 16 are located in sample placed cavity 12, and to be fixed on annular protrusion 18, and for being sealed and matched between spherical rubber pad 17 and half recessed sheet metal 16.Plug 23 is coordinated, to strengthen the sealing to branch in chamber by thread seal (plug 23 is internal thread, and sample placed cavity 12 is external thread 19) with the two ends of sample placed cavity 12.
The utility model can induce the device of multiple xyle embolism simultaneously, can according to measuring the spherical rubber pad and half recessed sheet metal that need to select different pore size size.
During detection, nitrogen pot 5 is opened and makes gas enter pipeline, the atmospheric pressure value of nitrogen pot 5 can be known by nitrogen decompression table 3.Regulate air intake control valve 8 to control intake velocity and show on rain glass 7, can close after reaching required air pressure, the air pressure now in sample placement mechanism is identical with it.After sample measurement completes, open venting operation valve 9, the gas in pipelines after air intake control valve 8 is discharged through the outlet of venting operation valve.If institute's air inlet air pressure is excessive in measuring process, safety valve 10 automatic deflations are to guarantee experiment safety.Induction after embolism completes, loses number percent (PLC) by the hydraulic conductivity of working sample branch segment, can draw in conjunction with the flow of water residing for branch segment and analyze therapeutic Absolute curve
Claims (9)
1. can induce a device for multiple xyle embolism simultaneously, it is characterized in that: it comprises:
One admission gear;
One barometric surveying and control gear; Described barometric surveying and control gear comprise a three-limb tube, and an outlet of described three-limb tube is connected with a rain glass, and another 1 outlet is connected with described admission gear, and this connectivity part is provided with gas admittance valve and air intake control valve;
One sample placement mechanism; 3rd outlet of described three-limb tube is connected with sample placement mechanism described in several by several rapid-acting couplings.
2. device according to claim 1, is characterized in that: the inlet suction port that described admission gear comprises a nitrogen pot and is connected with described nitrogen pot, and one end of described inlet suction port is connected with nitrogen decompression table.
3. device according to claim 1 and 2, is characterized in that: described admission gear is connected with described gas admittance valve by long source of the gas line.
4. device according to claim 3, is characterized in that: described long source of the gas line is all connected by resistance to compression mantle fiber steel pipe with between described admission gear and described gas admittance valve.
5. device according to claim 4, is characterized in that: the 3rd outlet of described three-limb tube is connected with venting operation valve and safety valve.
6. device according to claim 5, is characterized in that: described rapid-acting coupling is connected with described sample placement mechanism by source line of losing heart.
7. device according to claim 6, it is characterized in that: described sample placement mechanism comprises a sample placed cavity and two plugs, perisporium in described sample placed cavity is provided with an annular protrusion, and the both ends open of described annular protrusion and described cavity is provided with spacing; The end face of described plug is provided with a circular hole;
Described sample placement mechanism also comprises rubber blanket and sheet metal, and described rubber blanket and described sheet metal are equipped with circular hole;
Described rubber blanket and described sheet metal are located in described sample placed cavity, and can be fixed on described annular protrusion;
The two ends of described plug and described sample placed cavity for being sealed and matched, and with described rubber blanket for being sealed and matched.
8. device according to claim 7, is characterized in that: pass through threaded engagement between described sample placed cavity and described plug.
9. device according to claim 7, is characterized in that: described rubber blanket is spherical rubber pad;
Described sheet metal is half recessed sheet metal, for being sealed and matched between described sheet metal and described rubber blanket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455913.8U CN204044017U (en) | 2014-08-13 | 2014-08-13 | A kind of device simultaneously inducing multiple xyle embolism |
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| CN201420455913.8U CN204044017U (en) | 2014-08-13 | 2014-08-13 | A kind of device simultaneously inducing multiple xyle embolism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466289A (en) * | 2021-06-28 | 2021-10-01 | 中国农业大学 | System and method for measuring vulnerability of crop leaf embolism |
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2014
- 2014-08-13 CN CN201420455913.8U patent/CN204044017U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466289A (en) * | 2021-06-28 | 2021-10-01 | 中国农业大学 | System and method for measuring vulnerability of crop leaf embolism |
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