Directional airflow pollination auxiliary hybridization device

Abstract

The utility model discloses a directional airflow pollination auxiliary hybridization device which comprises an isolation cover and a first pollen collecting device used for collecting pollen, and a male parent isolation cavity used for isolating male parent plants and a female parent isolation cavity used for isolating female parent plants are defined by the isolation cover; a plurality of fans are arranged in the male parent isolation cavity and the female parent isolation cavity; the first pollen collecting device comprises a shell, an inlet channel, a negative pressure cavity and an outlet channel which are sequentially communicated are formed in the shell, a negative pressure fan is arranged in the negative pressure cavity, the inlet channel is communicated with the male parent isolation cavity, and the outlet channel is communicated with the female parent isolation cavity. According to the scheme, the diffusion path of pollen is directionally controlled through wind power, so that the pollen is spread into the female parent isolation cavity from the male parent isolation cavity, and the work of female parent castration, pollen collection, pollination and the like is automatically completed.

Description

Technical Field

[0001] The utility model relates to the field of hybrid breeding devices, in particular to a directional airflow pollination auxiliary hybridization device. Background Art

[0002] Hybrid breeding is a method of breeding new varieties with excellent traits by combining plant varieties with different genetic characteristics. In this process, artificial pollination plays a vital role. It requires the operator to use delicate tools such as brushes or cotton swabs to gently collect pollen from anthers, or cut the anthers directly, and properly store the collected pollen in containers, small bags or special pollination devices. On the mother plant, select high-quality complete flowers that are about to open and use sterilized tweezers to emasculate. Then use a cotton swab to apply a little water or honey water on the stigma of the pistil (to increase the adhesion of pollen). Then, use a brush or cotton swab to dip the pollen and carefully apply it to the stigma of the pistil to increase the success rate of hybrid pollination. Put on a double-layer gauze bag immediately after pollination.

[0003] However, the situation is different for wind-pollinated flowers. Wind-pollinated flowers refer to plant flowers that rely on wind to spread pollen. Such flowers usually have several notable characteristics: the flowers are small and dense, often arranged in spikes, and the pollen is large, light, dry, and smooth, and easily blown away by the wind. In addition, the perianth of wind-pollinated flowers is often inconspicuous, lacks fragrance and nectaries, and often has the phenomenon of "flowering before leaves" to ensure that pollen is not hindered by branches and leaves when spreading.

[0004] Since the inflorescence of wind-pollinated flowers is relatively small, the stamens and stamens are generally adhered to or wrapped around each other and are close to each other, making artificial emasculation difficult. In addition, wind-pollinated flowers have a large number of flowers, with each spike usually having hundreds or thousands of small flowers. When artificial pollination is used for hybridization, artificial emasculation, pollen collection and artificial pollination are difficult and inefficient. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a directional airflow pollination assisted hybridization device, which solves the problem of great difficulty and extremely low efficiency in artificial emasculation of wind-pollinated plants in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A directional airflow pollination assisted hybridization device is provided, which comprises an isolation cover and a first pollen collecting device for collecting pollen, wherein the isolation cover encloses a paternal isolation chamber for isolating a paternal plant and a maternal isolation chamber for isolating a maternal plant; a plurality of fans are arranged in the paternal isolation chamber and the maternal isolation chamber; the first pollen collecting device comprises a shell, wherein the interior of the shell comprises an inlet channel, a negative pressure chamber and an outlet channel which are connected in sequence, a negative pressure fan is arranged in the negative pressure chamber, the inlet channel is connected to the paternal isolation chamber, and the outlet channel is connected to the maternal isolation chamber.

[0008] The beneficial effects of the utility model are as follows: the fan can create disturbed airflow to blow away the pollen in the male parent isolation chamber. Since a negative pressure chamber is formed inside the shell, when the pollen floats near the first pollen collecting device, the pollen will enter the negative pressure chamber from the inlet channel and enter the female parent isolation chamber from the outlet channel. Due to the effect of wind force, the pollen sprayed from the outlet channel can spread to the pistil of the female parent plant, thereby realizing wind-powered automatic pollination.

[0009] This solution controls the diffusion path of pollen through wind directionality, eliminating the need for manual emasculation, manual pollen collection, and smearing of pistils, etc., greatly saving manpower and reducing labor intensity. It is especially suitable for hybrid breeding of wind-pollinated plants for large-scale cultivation.

[0010] Furthermore, the outlet end of the outlet channel of the first pollen collecting device and the inlet end of the inlet channel are respectively provided with a first cover body and a second cover body detachably connected to the outlet end and the inlet end. After closing the first cover body, sufficient pollen can be collected first and then sprayed out uniformly; after closing the second cover body, the pollen can be pushed by the negative pressure fan and sprayed out from the outlet channel.

[0011] Furthermore, the top surface of the first cover body is a filter plate, which has a plurality of micropores with a diameter less than 0.3 mm. The filter plate is used to block the passage of pollen but allow gas to be discharged to avoid pollen backflow.

[0012] Furthermore, a third cover body is arranged between the first cover body and the outlet end, and a through hole with a diameter greater than 1 mm is opened on the top surface of the third cover body; one end of the third cover body is threadedly connected to the outlet end, and the other end is threadedly connected to the first cover body.

[0013] The beneficial effects of the above technical solution are: the provision of the third cover reduces the diameter of the fluid channel, which helps to reduce the speed of pollen spraying, so that the pollen can cover the mother plant more evenly, thereby improving the success rate of pollination.

[0014] Furthermore, the inlet channel is a funnel-shaped structure, and the large end of the inlet channel is inclined toward the father plant; the fan in the father isolation chamber is facing the father plant and is arranged opposite to the inlet channel. The inlet area of ​​the inlet channel can be increased, and the probability of pollen entering can be increased. The airflow blown by the fan is opposite to the inlet channel, which helps pollen follow the airflow into the inlet channel.

[0015] Furthermore, the diameter of the outlet channel is smaller than the diameter of the inlet channel, and the outlet channel is inclined toward the mother plant, which helps to reduce the speed of pollen spraying and increase the probability of pollen spraying onto the style.

[0016] Furthermore, a second powder collecting device is provided in the mother isolation chamber, and the second powder collecting device includes a negative pressure fan and a powder collecting bin connected to the negative pressure fan; the fan in the mother isolation chamber is arranged opposite to the second powder collecting device.

[0017] The beneficial effect of the above technical solution is that when the fan and the negative pressure fan are turned on at the same time, the pollen on the mother plant can be blown off by the wind and then sucked into the pollen collecting bin and collected by the pollen collecting bin, which is equivalent to completing the process of emasculating the mother plant and can minimize the probability of self-pollination of the mother plant.

[0018] Furthermore, the isolation cover is fixed on a frame support formed by connecting vertical pillars and transverse pillars. The vertical pillars and transverse pillars are both retractable rods. The isolation cover is made of waterproof and transparent material, which can allow light to enter the isolation cavity.

[0019] Furthermore, at least one ventilation port is respectively provided on the isolation cover of the male isolation chamber and the female isolation chamber, and a breathable sheet is provided at the ventilation port to prevent pollen from floating out. The breathable sheet completely covers the ventilation port to be connected to a fresh air source outside the isolation chamber, thereby ensuring the freshness and fluidity of the air in the isolation chamber.

[0020] Furthermore, the isolation cover on one side of the maternal isolation chamber and the paternal isolation chamber is two detachably connected flexible curtains, the top of the curtain is fixedly connected to the horizontal support at the top, and the end of the curtain in contact with the vertical support is fixedly connected to the vertical support; the bottom ends of the two curtains and the edges of the ends in contact with the adjacent curtains are fixedly connected with flexible magnetic strips, the bottom of the curtain is magnetically connected to the horizontal support at the bottom through the magnetic strip, and the two curtains are magnetically connected. The staff can separate the curtains and open a passage for the staff to enter and exit the paternal and maternal isolation chambers by gently pushing away the magnetic strip, so that the staff can enter and exit the paternal and maternal isolation chambers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a directional airflow pollination-assisted hybridization device;

[0022] Figure 2 for Figure 1A schematic diagram of the structure of the first powder collecting device;

[0023] Figure 3 It is a structural schematic diagram of the connection between the frame support and the curtain body.

[0024] Among them, 1. frame support; 11. vertical pillar; 12. horizontal pillar; 2. isolation cover; 21. mother isolation chamber; 22. father isolation chamber; 3. curtain body; 31. magnetic strip; 4. ventilation port; 41. breathable sheet; 51. mother plant; 52. father plant; 6. fan; 7. first powder collecting device; 71. negative pressure chamber; 72. shell; 73. first cover body; 731. filter; 74. placement rack; 75. negative pressure fan; 76. second cover body; 77. outlet channel; 78. inlet channel; 79. third cover body; 8. second powder collecting device; 81. powder collecting bin. DETAILED DESCRIPTION

[0025] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0026] like Figure 1 As shown, the directional airflow pollination assisted hybridization device of the present scheme includes an isolation cover 2 and a first pollen collecting device 7 for collecting pollen. The isolation cover 2 encloses a paternal isolation chamber 22 for isolating the paternal plant 52 and a maternal isolation chamber 21 for isolating the maternal plant 51; a plurality of fans 6 are arranged in the paternal isolation chamber 22 and the maternal isolation chamber 21.

[0027] The first powder collecting device 7 includes a housing 72, the interior of the housing 72 is an inlet channel 78, a negative pressure chamber 71 and an outlet channel 77 which are connected in sequence, a negative pressure blower 75 is provided in the negative pressure chamber 71, the inlet channel 78 is connected to the father's isolation chamber 22, and the outlet channel 77 is connected to the mother's isolation chamber 21. The first powder collecting device 7 can be installed on a placement rack 74 to increase the installation height. During installation, it should be ensured that the negative pressure blower 75 generates negative pressure at the inlet channel 78 so that the airflow direction is from the inlet channel 78 to the outlet channel 77.

[0028] The working principle of the utility model is as follows: when the male plant 52 and the female plant 51 bloom, the fan 6 in the female isolation chamber 21 is first turned on to create a disturbed airflow so that the pollen of the female plant 51 is blown off by the airflow, so as to achieve wind-driven automatic emasculation of the female plant 51. After the emasculation of the female plant 51 is completed, the negative pressure fan 75 and the fan 6 in the male isolation chamber 22 are turned on again so that the pollen of the male plant 52 is blown away by the wind. Since a negative pressure chamber 71 is formed inside the housing 72, when the pollen drifts to the vicinity of the first pollen collecting device 7, the pollen will enter the negative pressure chamber 71 from the inlet channel 78 and then be ejected from the outlet channel 77. The ejected pollen can spread to the pistil of the female plant 51, thereby completing wind-driven automatic pollination.

[0029] This solution controls the diffusion path of pollen through wind directionality, eliminating the need for manual emasculation, manual pollen collection, and smearing of pistils, etc., greatly saving manpower and reducing labor intensity. It is especially suitable for hybrid breeding of wind-pollinated plants for large-scale cultivation.

[0030] Specifically, refer to Figure 2 In order to improve the success rate of pollination, the outlet end of the outlet channel 77 and the inlet end of the inlet channel 78 of the first pollen collecting device 7 are respectively provided with a first cover body 73 and a second cover body 76 which are detachably connected to the outlet end and the inlet end.

[0031] The operation of the first pollen collecting device 7 can be divided into two stages. Stage 1: closing the first cover 73 and opening the second cover 76. When the negative pressure fan 75 is working, pollen is sucked into the negative pressure chamber 71 from the inlet channel 78 and stored, and will not be sprayed out from the negative pressure chamber 71. It can be achieved that enough pollen is collected first and then sprayed out uniformly.

[0032] Stage 2: After the pollen is collected, the second cover 76 is closed, the first cover 73 is opened, and the negative pressure fan can blow the pollen out from the outlet channel 77, so that it enters the mother parent isolation chamber 21. At this time, the fan in the mother parent isolation chamber 21 is turned on, so that the sprayed pollen can be blown away by the airflow, so that it is dispersed and falls on the pistils of different flowers.

[0033] Preferably, the top surface of the first cover 73 is a filter 731, and the filter 731 has a plurality of micropores with a diameter less than 0.3 mm. The filter 731 is used to block the passage of pollen. Due to the presence of micropores on the filter 731, after the first cover 73 is covered, the gas can still be discharged from the first cover 73, so as to prevent the internal gas from flowing back into the male isolation chamber 22 from the inlet channel 78, causing the collected pollen to be released into the male isolation chamber 22 again. The material of the filter 731 can be ordinary cloth woven from fibers, which is easy to obtain and low in cost.

[0034] A third cover body 79 may be provided between the first cover body 73 and the outlet end. A through hole with a diameter greater than 1 mm is provided on the top surface of the third cover body 79 . One end of the third cover body 79 is threadedly connected to the outlet end, and the other end is threadedly connected to the first cover body 73 .

[0035] The third cover 79 can reduce the diameter of the fluid channel, which helps to reduce the speed of pollen spraying, so that the pollen can cover the mother plant 51 more evenly, and improve the success rate of pollination. It also helps to better disperse the pollen particles during the spraying process, reduce the aggregation and collision between them, and make them spray more dispersed. Similarly, the diameter of the outlet channel 77 is smaller than the diameter of the inlet channel 78, and the outlet channel 77 is preferably a relatively slender channel, which can reduce the diameter of the fluid.

[0036] The inlet channel 78 is a funnel-shaped structure, which can increase the inlet area of ​​the inlet channel 78 and improve the probability of pollen entering. The large end of the inlet channel 78 is tilted toward the father plant 52; the fan 6 in the father isolation chamber 22 is facing the father plant 52 and is opposite to the inlet channel 78. The airflow blown by the fan 6 is opposite to the inlet channel 78, which helps pollen follow the airflow into the inlet channel 78.

[0037] At least three fans 6 may be provided in the parent isolation chamber 22. Figure 1 As shown, two fans 6 are respectively fixed on the upper and lower sides of the male parent isolation chamber 22, the lower fan 6 blows upward at a 45-degree angle, the upper fan 6 blows downward at a 45-degree angle, and the other fan can be set on the top surface of the male parent isolation chamber 22 to blow from top to bottom. The airflow in three directions helps to blow the pollen off and disperse it into the air, and then the pollen follows the airflow to the inlet channel 78. Similarly, the outlet channel 77 should also be set tilted toward the mother plant 51.

[0038] The mother isolation chamber 21 is provided with a second powder collecting device 8, which includes a negative pressure fan 75 and a powder collecting bin 81 connected to the negative pressure fan 75; the fan 6 in the mother isolation chamber 21 is arranged opposite to the second powder collecting device 8. The fan 6 can also be provided with a fan 6 with a top blowing downward, a fan 6 located at the top and blowing obliquely downward, and a fan 6 located at the bottom and blowing obliquely upward.

[0039] When the fan 6 and the negative pressure fan 75 of the second pollen collecting device 8 are turned on at the same time, the pollen on the mother plant 51 can be blown off by the fan 6 and float to the second pollen collecting device 8 in the direction of the airflow. The pollen can be sucked into the pollen collecting bin 81 from the negative pressure fan 75 and collected, which is equivalent to completing the process of emasculating the mother plant 51, and can minimize the probability of self-pollination of the mother plant 51.

[0040] In another embodiment, the second pollen collecting device 8 can have exactly the same structure as the first pollen collecting device 7, and the inlet channel 78 and the outlet channel 77 of the second pollen collecting device 8 can both be located in the mother isolation chamber 21, and its outlet channel 77 can also pass through the isolation cover 2 and be located in the external environment to directly discharge pollen.

[0041] The isolation cover 2 is fixed on the frame support 1 formed by connecting the vertical support 11 and the horizontal support 12. The vertical support 11 and the horizontal support 12 are both retractable rods, which are convenient for adjusting the size of the male isolation cavity 22 and the female isolation cavity 21 in different auxiliary hybridization devices according to the crown size and height of the wind-pollinated plants to be hybridized. The isolation cover 2 is made of waterproof and transparent material, which can allow light to enter the isolation cavity. The isolation cover 2 can be transparent glass, transparent acrylic plate, transparent and waterproof plastic or light-transmitting rainproof cloth, etc.

[0042] At least one ventilation port 4 is respectively provided on the isolation cover 2 of the male isolation chamber 22 and the female isolation chamber 21, which can be connected to a fresh air source outside the isolation chamber to ensure the freshness and fluidity of the air in the isolation chamber. A breathable sheet 41 is provided at the ventilation port 4 to prevent pollen from floating out, and the breathable sheet 41 completely covers the ventilation port 4. The breathable sheet 41 can use a waterproof breathable membrane, such as EPTFE (polytetrafluoroethylene), etc., preferably a transparent waterproof breathable membrane. The breathable sheet 41 can allow gas to pass through without allowing pollen particles to pass through, so that the environment in the female isolation chamber 21 is relatively closed and stable, so that the propagation range of pollen is limited to a relatively small area, reducing the loss and waste of pollen, which is conducive to the dispersion and diffusion of pollen therein, and improving the efficiency and success rate of pollination.

[0043] refer to Figure 3 The isolation cover 2 on one side of the maternal isolation cavity 21 and the paternal isolation cavity 22 is composed of two detachably connected flexible curtain bodies 3, the top of the curtain body 3 is fixedly connected to the top transverse pillar 12, and the end of the curtain body 3 in contact with the vertical pillar 11 is fixedly connected to the vertical pillar 11. The bottom ends of the two curtain bodies 3 and the edges of the ends in contact with the adjacent curtain bodies 3 are fixedly connected with flexible magnetic strips 31, the bottom of the curtain body 3 is magnetically connected to the bottom transverse pillar 12 through the magnetic strips 31, and the two curtain bodies 3 are magnetically connected.

[0044] The staff can gently push away the magnetic strip 31 to separate the curtain body 3 and open a passage for the staff to enter and exit. After lowering the curtain body 3, the magnetic strip 31 on the curtain body 3 will automatically adsorb and automatically form a closed plane for the curtain body 3 to facilitate the rapid separation and closure of the curtain body 3, so that the staff can enter and exit the maternal and paternal isolation chambers.

[0045] In summary, this solution controls the diffusion path of pollen through wind direction, so that pollen spreads from the male parent isolation chamber 22 to the female parent isolation chamber 21, automatically completing the tasks of female parent emasculation, pollen collection and pollination, greatly saving manpower and reducing labor intensity.

Claims

1. A directional airflow pollination assisted hybridization device, characterized in that: The invention comprises an isolation cover (2) and a first pollen collecting device (7) for collecting pollen, wherein the isolation cover (2) encloses a male isolation chamber (22) for isolating a male plant (52) and a female isolation chamber (21) for isolating a female plant (51); a plurality of fans (6) are arranged in each of the male isolation chamber (22) and the female isolation chamber (21); The first powder collecting device (7) comprises a shell (72), the interior of the shell (72) is an inlet channel (78), a negative pressure chamber (71) and an outlet channel (77) which are connected in sequence, a negative pressure blower (75) is arranged in the negative pressure chamber (71), the inlet channel (78) is connected to the father isolation chamber (22), and the outlet channel (77) is connected to the mother isolation chamber (21).

2. The directional airflow pollination assisted hybridization device according to claim 1, characterized in that: The outlet end of the outlet channel (77) and the inlet end of the inlet channel (78) of the first powder collecting device (7) are respectively provided with a first cover body (73) and a second cover body (76) which are detachably connected to the outlet end and the inlet end.

3. The directional airflow pollination assisted hybridization device according to claim 2, characterized in that: The top surface of the first cover body (73) is a filter plate (731), and the filter plate (731) has a plurality of micropores with a diameter less than 0.3 mm.

4. The directional airflow pollination assisted hybridization device according to claim 3, characterized in that: A third cover body (79) is also provided between the first cover body (73) and the outlet end, and a through hole with a diameter greater than 1 mm is provided on the top surface of the third cover body (79); one end of the third cover body (79) is threadedly connected to the outlet end, and the other end is threadedly connected to the first cover body (73).

5. The directional airflow pollination assisted hybridization device according to claim 1, characterized in that: The inlet channel (78) is a funnel-shaped structure, and the large end of the inlet channel (78) is inclined toward the father plant (52); the fan (6) in the father isolation chamber (22) is directed toward the father plant (52) and is arranged opposite to the inlet channel (78).

6. The directional airflow pollination assisted hybridization device according to claim 1, characterized in that: The diameter of the outlet channel (77) is smaller than the diameter of the inlet channel (78), and the outlet channel (77) is inclined toward the mother plant (51).

7. The directional airflow pollination assisted hybridization device according to claim 6, characterized in that: A second powder collecting device (8) is arranged in the mother isolation chamber (21), and the second powder collecting device (8) comprises a negative pressure fan (75) and a powder collecting bin (81) connected to the negative pressure fan (75); the fan (6) in the mother isolation chamber (21) is arranged opposite to the second powder collecting device (8).

8. The directional airflow pollination assisted hybridization device according to claim 1, characterized in that: The isolation cover (2) is fixed on a frame support (1) formed by connecting vertical supports (11) and transverse supports (12); the vertical supports (11) and transverse supports (12) are both retractable rods; and the isolation cover (2) is made of a waterproof and transparent material.

9. The directional airflow pollination assisted hybridization device according to claim 1, characterized in that: At least one ventilation port (4) is respectively provided on the isolation cover (2) of the male isolation chamber (22) and the female isolation chamber (21), and a ventilation sheet (41) is provided at the ventilation port (4) for preventing pollen from floating out, and the ventilation sheet (41) completely covers the ventilation port (4).

10. The directional airflow pollination assisted hybridization device according to claim 8, characterized in that: The isolation cover (2) on one side of the maternal isolation chamber (21) and the paternal isolation chamber (22) is composed of two detachably connected flexible curtain bodies (3), the top end of the curtain body (3) is fixedly connected to the top transverse support (12), and the end of the curtain body (3) in contact with the vertical support (11) is fixedly connected to the vertical support (11); A flexible magnetic strip (31) is fixedly connected to the bottom ends of the two curtain bodies (3) and to the edges of the ends in contact with the adjacent curtain bodies (3); the bottom of the curtain body (3) is magnetically connected to the transverse support (12) at the bottom via the magnetic strip (31); and the two curtain bodies (3) are magnetically connected to each other.

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