Hybrid pollination device for wheat breeding

Abstract

The invention relates to the field of wheat breeding, in particular to a cross pollination device for wheat breeding. According to the cross pollination device for wheat breeding, the telescopic cylinder is arranged on the outer side of a wheat ear of a female parent in a sleeving mode, a wheat ear of a male parent is inserted into the sleeve, and the telescopic cylinder initially extends downwards from the sleeve to be in a separated state; at the moment, the annular air heater continuously blows hot air flow with moisture absorbed by the absorbent cotton to the position between the sleeve and the telescopic cylinder, the hot air flow is used for conducting water drop blow-drying treatment on the separated female parent wheat and male parent wheat, and the situation that pollen is shaken out and affected with damp due to contact of the female parent wheat and the male parent wheat is avoided; then the female parent wheat and the male parent wheat between the sleeve and the telescopic cylinder are contracted and drawn close, the male parent wheat is rotated to perform cross pollination treatment on the female parent wheat, and meanwhile, the continuously blown hot air flow can provide a dry environment for pollination treatment. The technical problem that when many water drops appear on female parent wheat, the pollination effect of wheat hybridization is seriously affected is solved.

Description

Technical Field

[0001] The present invention relates to the field of wheat breeding, in particular to a hybrid pollination device for wheat breeding. Background Art

[0002] In a long-term rainy weather environment, even if there is a window period without rainfall, the environmental humidity is high, which is an unfavorable factor for hybrid pollination in wheat breeding. Especially when a large number of water droplets remain in the ears of the maternal wheat, the pollen shaken off from the paternal wheat will fall into the water droplets, causing the pollen to rupture and reduce the pollination efficiency, seriously affecting the pollination success rate and hybrid breeding effect. These factors will affect the yield and quality of wheat and increase breeding costs. Summary of the Invention

[0003] In order to overcome the disadvantage that when a large number of water droplets appear on the female wheat, the pollination effect of wheat hybridization will be seriously affected, the present invention provides a hybrid pollination device for wheat breeding.

[0004] The technical solution is: a hybrid pollination device for wheat breeding, including a sleeve, a liner, a telescopic cylinder, an annular hot air blower, an air hose, a fixed pipe and absorbent cotton; the sleeve is slidably connected to the liner; the telescopic cylinder is rotatably connected to the liner; a circle of inner cavity structure is provided in the sleeve; absorbent cotton for filtering moisture in the air is placed in the inner cavity structure of the sleeve; a plurality of through-hole structures connected to the inner cavity structure are provided at the bottom of the sleeve; an annular hot air blower is installed on the sleeve; the air inlet of the annular hot air blower is connected to the through-hole structure of the sleeve; a plurality of air transmission channel structures are provided in the telescopic cylinder; a plurality of air outlet hole structures connected to the corresponding air transmission channel structures are provided on the inner wall of the telescopic cylinder; a fixed pipe connected to all air transmission channel structures is fixed on the telescopic cylinder; a gas transmission hose is commonly connected between the air outlet of the annular hot air blower and the fixed pipe.

[0005] Furthermore, all the air outlet structures of the telescopic cylinder are set to an inclined downward state; and a microporous ventilation plate is inserted on the telescopic cylinder.

[0006] Furthermore, two movable splints are slidably connected to the sleeve; and a tension spring is fixedly connected between the movable splint and the sleeve.

[0007] Furthermore, a pressing plate is slidably connected in the sleeve, and the pressing plate is in close contact with the upper surface of the absorbent cotton.

[0008] Furthermore, a sealing plug is inserted between all the through-hole structures of the sleeve; a plurality of air inlet channel structures connected to the air inlet of the annular hot air blower are opened on the sealing plug; a plurality of exhaust hole structures connected to the air inlet channel structure are opened on the sealing plug, and the exhaust hole structure is connected to the internal space of the absorbent cotton; the pressure plate is fixed to the sealing plug.

[0009] Furthermore, the sealing plug is provided with annular groove structures corresponding to the number and position of the air inlet channel structures, and the air extraction hole structures are located in the corresponding annular groove structures.

[0010] Furthermore, the lower end of the telescopic cylinder is configured as a tapered cylindrical structure that contracts downward.

[0011] Furthermore, a circle of conical telescopic sleeve is provided on the outer surface of the conical cylindrical structure at the lower end of the telescopic cylinder.

[0012] Furthermore, the outer surface of the conical cylindrical structure at the lower end of the telescopic cylinder is provided with a circle of anti-slip convex ring structure, and the conical telescopic sleeve is sleeved on the anti-slip convex ring.

[0013] Furthermore, a plurality of soft tactile hairs are fixedly connected in the telescopic cylinder.

[0014] Beneficial effect: The hybrid pollination device for wheat breeding described in the present invention is mainly composed of a sleeve, a telescopic cylinder, an annular hot air blower and water-absorbing cotton. After the telescopic cylinder is sleeved on the outside of the wheat ear of the female wheat, the wheat ear of the male wheat is inserted into the sleeve, and the telescopic cylinder initially extends downward from the sleeve. At this time, the annular hot air blower continuously blows a hot air flow whose moisture is absorbed by the water-absorbing cotton between the sleeve and the telescopic cylinder, and the separated female wheat and male wheat are dried by the hot air flow. At this time, the microporous ventilation plate can reduce the flow rate of the hot air flow to the male wheat, avoiding the contact between the female wheat and the male wheat, which causes the pollen to be shaken out and moistened. After that, the female wheat and the male wheat between the sleeve and the telescopic cylinder are shrunk and brought closer, and the male wheat is rotated to perform hybrid pollination treatment on the female wheat. At the same time, the continuously blown hot air flow can provide a dry environment for the pollination process; it solves the technical problem that when there are too many water droplets on the female wheat, the pollination effect of wheat hybridization will be seriously affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view illustrating a state where the sleeve and the telescopic cylinder of the present invention are separated; Figure 2 A perspective cross-sectional view of the sleeve and telescopic tube for describing the present invention; Figure 3 A perspective view of a movable splint for describing the present invention; Figure 4 A perspective view of a pressing plate for describing the present invention; Figure 5 A perspective view of a sealing plug for describing the present invention; Figure 6 A perspective view of a bushing for describing the present invention; Figure 7 A partial perspective sectional view of a telescopic cylinder for describing the present invention; Figure 8 The present invention is a stereoscopic diagram illustrating the retracted state of the sleeve and the telescopic tube.

[0016] The names and serial numbers of the parts in the figure are: 11-sleeve, 1101-inner cavity structure, 1102-through hole structure, 12-telescopic cylinder, 1201-air transmission channel structure, 1202-air outlet hole structure, 121-bushing, 122-anti-slip convex ring, 13-annular hot air blower, 131-air transmission hose, 132-fixing tube, 141-movable splint, 142-tension spring, 15-microporous ventilation plate, 2-absorbent cotton, 31-pressing plate, 32-sealing plug, 3201-air inlet channel structure, 3202-exhaust hole structure, 3203-annular groove structure, 4-conical telescopic sleeve, 5-soft touch hair. DETAILED DESCRIPTION

[0017] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present application and are not intended to limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.

[0018] Example 1: A hybrid pollination device for wheat breeding in this embodiment, such as Figures 1-8As shown, it includes a sleeve 11, a bushing 121, a telescopic cylinder 12, a ring hot air blower 13, an air delivery hose 131, a fixed tube 132 and a water-absorbing cotton 2; the sleeve 11 is slidably connected to the bushing 121; the telescopic cylinder 12 is rotatably connected to the bushing 121; a circle of inner cavity structure 1101 is opened in the sleeve 11; the water-absorbing cotton 2 is placed in the inner cavity structure 1101 of the sleeve 11; a plurality of through holes connected to the inner cavity structure 1101 are opened at the bottom of the sleeve 11 Structure 1102; an annular hot air blower 13 is installed on the sleeve 11, and when in use, the annular hot air blower 13 needs to be connected to a mobile power supply through a power cord for power supply; the annular hot air blower 13 has a built-in temperature sensor to control the temperature of the hot air blown by the annular hot air blower 13 to be below 28°C to avoid the hot air temperature being too high and damaging the pollen; the air inlet of the annular hot air blower 13 is connected to all the through-hole structures 1102 of the sleeve 11; a plurality of air supply ports are opened in the telescopic cylinder 12 Channel structure 1201; a plurality of air outlet structures 1202 connected to the corresponding air supply channel structures 1201 are provided on the inner wall of the telescopic cylinder 12; a fixed pipe 132 connected to all the air supply channel structures 1201 is fixedly connected to the telescopic cylinder 12; two air supply hoses 131 are connected between the air outlet of the annular hot air blower 13 and the fixed pipe 132; the annular hot air blower 13 blows hot air to the maternal wheat and paternal wheat between the telescopic cylinder 12 and the sleeve 11 through the air supply hose 131, the fixed pipe 132, the air supply channel structure 1201 and the air outlet structure 1202 in succession; all the air outlet structures 1202 of the telescopic cylinder 12 are set to a tilted downward state to avoid the hot air flow blown out from the air outlet structure 1202 from blowing directly onto the paternal wheat located in the sleeve 11, thereby blowing out the pollen on the paternal wheat, causing pollen waste and environmental pollution; a microporous ventilation plate 15 is detachably inserted at the upper end of the telescopic cylinder 12.

[0019] like Figure 3 As shown, in this embodiment, two symmetrical movable clamps 141 are slidably connected to the sleeve 11 , and the two movable clamps 141 are initially in close contact with each other; a tension spring 142 is fixed between each of the two movable clamps 141 and the sleeve 11 .

[0020] like Figure 2-Figure 5 As shown, a pressure plate 31 is slidably connected to the sleeve 11 of this embodiment, and the pressure plate 31 is in close contact with the upper surface of the absorbent cotton 2; a sealing plug 32 is inserted between all the through-hole structures 1102 of the sleeve 11; the sealing plug 32 is provided with a plurality of air inlet channel structures 3201 connected to the air inlet of the annular hot air blower 13; the sealing plug 32 is provided with a plurality of exhaust hole structures 3202 connected to the air inlet channel structures 3201, and the exhaust hole structures 3202 are connected to the internal space of the absorbent cotton 2; the sealing plug 32 is provided with annular groove structures 3203 corresponding to the number and position of the air inlet channel structures 3201, and the exhaust hole structures 3202 are located in the corresponding annular groove structures 3203; the pressure plate 31 is fixed to the sealing plug 32.

[0021] The working steps of the hybrid pollination device for wheat breeding in this embodiment are as follows.

[0022] First, the telescopic cylinder 12 is initially in a state of extending downward from the sleeve 11. The user puts the telescopic cylinder 12 on the outside of the ear of the maternal wheat, and then inserts the paternal wheat into the sleeve 11 with the ear facing downward, and inserts the paternal wheat stalk between the two movable splints 141. The two tension springs 142 pull the two movable splints 141 to clamp the paternal wheat stalk together. At this time, the microporous ventilation plate 15 is located between the paternal wheat stalk and the maternal wheat ear.

[0023] After that, the user turns on the annular hot air blower 13, which continuously draws outside air through the air inlet channel structure 3201 and the air extraction hole structure 3202 of the sealing plug 32, allowing the outside air to continue to flow downward through the water-absorbing cotton 2. In the process of the sucked outside air flowing through the water-absorbing cotton 2, the water-absorbing cotton 2 absorbs the moisture in the air flow, allowing the air flow to flow through the air extraction hole structure 3202 and the air inlet channel structure 3201 in a dry state and enter the annular hot air blower 13. The annular hot air blower 13 then continuously delivers hot air to each air delivery channel structure 1201 of the telescopic cylinder 12 through the air delivery hose 131 and the fixed tube 132. The hot air flow is then blown obliquely downward through each air outlet hole structure 1202 into the telescopic cylinder 12 to dry the water droplets on the surface of the mother wheat. Since each ear of the mother wheat is in an obliquely upward upright state, water droplets usually remain in the gaps between adjacent ears of the mother wheat, so the hot air flow blown obliquely downward The hot air flow is then blown away by the hot air flow, and the hot air flow is then blown away by the hot air flow.

[0024] After that, the user first pulls open the two movable splints 141 to take the father wheat out of the sleeve 11, and then removes the microporous ventilation plate 15 from the telescopic cylinder 12. Then, the user inserts the father wheat into the sleeve 11 again, and inserts the wheat stems of the father wheat between the two movable splints 141, and pushes the sleeve 11 to drive the father wheat clamped by the two movable splints 141 to move downward along the telescopic cylinder 12, so that the sleeve 11 and the telescopic cylinder 12 are switched to the position as shown in FIG. Figure 8 The sleeve 11 drives the paternal wheat held by the two movable splints 141 downward into the telescopic cylinder 12 to contact the maternal wheat, and the user turns off the annular hot air blower 13 to stop blowing hot air into the telescopic cylinder 12. Then the user rotates the sleeve 11 to drive the paternal wheat held by the two movable splints 141 to rotate around the maternal wheat, so that intense friction is generated between the ears of the paternal wheat and the ears of the maternal wheat, so that the pollen in the paternal wheat is continuously shaken out toward the ears of the maternal wheat, completing the hybrid pollination process of the maternal wheat.

[0025] In addition, when the user observes that the absorbent cotton 2 is in a saturated state of moisture adsorption, the user only needs to press the pressure plate 31 downward to push the sealing plug 32 downward away from the through-hole structure 1102 of the sleeve 11. At the same time, the pressure plate 31 drives the absorbent cotton 2 downward to squeeze out the moisture. The squeezed moisture flows downward directly through the through-hole structure 1102 of the sleeve 11. Since the exhaust hole structure 3202 on the sealing plug 32 is hidden in the annular groove structure 3203, the squeezed moisture will not be poured into the annular hot air blower 13 through the exhaust hole structure 3202, thereby completing the moisture squeezing process of the absorbent cotton 2 in one step.

[0026] Example 2: Figures 1-8 As shown, on the basis of Example 1, the lower end of the telescopic cylinder 12 of this embodiment is set as a downward-contracting conical cylindrical structure; the outer surface of the conical cylindrical structure at the lower end of the telescopic cylinder 12 is provided with a circle of conical telescopic sleeve 4, and the conical telescopic sleeve 4 uses a conical ring sleeve material with a circumferential telescopic folding structure, and the circumferential telescopic folding structure of the conical telescopic sleeve 4 is initially in a state of being expanded to the four sides by the telescopic cylinder 12; the outer surface of the conical cylindrical structure at the lower end of the telescopic cylinder 12 is provided with a circle of anti-slip convex ring 122 structure, and the conical telescopic sleeve 4 is sleeved on the anti-slip convex ring 122, and the conical telescopic sleeve 4 in the expanded state is blocked by the anti-slip convex ring 122, which can prevent the conical telescopic sleeve 4 from falling off from the lower end of the telescopic cylinder 12 under the elastic stretching action of its own downward contraction.

[0027] In this embodiment, after the telescopic cylinder 12 is sleeved on the outside of the ear of wheat of the mother wheat, the user pulls the conical telescopic sleeve 4 downward along the conical cylindrical structure at the lower end of the telescopic cylinder 12, and at the same time, the part of the conical telescopic sleeve 4 that is downwardly separated from the telescopic cylinder 12 will shrink toward the middle under the elastic stretching action of its own circumferential telescopic folding structure, until the shrinkage area of the lower end of the conical telescopic sleeve 4 is sleeved on the wheat stalk of the mother wheat, and the user controls the local area of the upper end of the conical telescopic sleeve 4 to remain on the anti-slip convex ring 122 of the telescopic cylinder 12, and the anti-slip convex ring 122 restricts the conical telescopic sleeve 4 from falling off. At this time, the diameter of the lower port of the telescopic cylinder 12 is reduced to be much smaller than the diameter of the upper port of the sleeve 11, so most of the hot air flow blown into the telescopic cylinder 12 from the air outlet structure 1202 will go toward The hot air is blown out from the upper port of the sleeve 11, so that most of the hot air flow flows upward through the father wheat located in the sleeve 11, which greatly improves the efficiency of drying the water droplets on the surface of the father wheat. In the subsequent work of rotating the father wheat to hybridize and pollinate the mother wheat, the diameter of the lower port of the telescopic cylinder 12 is reduced by the contracted conical telescopic sleeve 4, and the pollen falling from the father wheat will be intercepted by the conical telescopic sleeve 4 and will not be directly blown downward by the hot air flow. Moreover, since most of the hot air flow blown toward the conical telescopic sleeve 4 will rebound upward and be blown out from the upper port of the sleeve 11, the pollen falling in the conical telescopic sleeve 4 will float upward with this part of the hot air flow that rebounds upward to surround the mother wheat, thereby improving the utilization rate of the pollen and the success rate of pollination of the mother wheat.

[0028] Example 3: Figures 1-8 As shown, based on the embodiment 1, a plurality of soft bristles 5 are fixedly connected inside the telescopic cylinder 12 of this embodiment.

[0029] In this embodiment, when rotating the male wheat to cross-pollinate the female wheat, the male wheat will continuously collide with the soft tactile hairs 5 during the process of rotating around the female wheat, and the soft tactile hairs 5 will continuously scrape off the pollen in the male wheat, thereby improving the pollen extraction efficiency of the male wheat.

[0030] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A hybrid pollination device for wheat breeding, comprising a sleeve (11); It is characterized in that The invention also includes a bushing (121), a telescopic cylinder (12), an annular hot air blower (13), an air delivery hose (131), a fixed pipe (132) and water-absorbing cotton (2); the sleeve (11) is slidably connected to the bushing (121); the bushing (121) is rotatably connected to the telescopic cylinder (12); a circle of inner cavity structure (1101) is provided in the sleeve (11); water-absorbing cotton (2) for filtering moisture in the air is placed in the inner cavity structure (1101) of the sleeve (11); a plurality of through-hole structures (1102) connected to the inner cavity structure (1101) are provided at the bottom of the sleeve (11); the sleeve ( An annular hot air blower (13) is installed on the sleeve (11); an air inlet of the annular hot air blower (13) is connected to the through-hole structure (1102) of the sleeve (11); a plurality of air transmission channel structures (1201) are provided in the telescopic cylinder (12); a plurality of air outlet hole structures (1202) connected to corresponding air transmission channel structures (1201) are provided on the inner wall of the telescopic cylinder (12); a fixed pipe (132) connected to all the air transmission channel structures (1201) is fixed to the telescopic cylinder (12); a gas transmission hose (131) is commonly connected between the air outlet of the annular hot air blower (13) and the fixed pipe (132).

2. A hybrid pollination device for wheat breeding according to claim 1, characterized in that: All the air outlet structures (1202) of the telescopic cylinder (12) are arranged in a tilted downward state; and a microporous ventilation plate (15) is inserted into the telescopic cylinder (12).

3. A hybrid pollination device for wheat breeding according to claim 1, characterized in that: Two movable splints (141) are slidably connected to the sleeve (11); a tension spring (142) is fixedly connected between the movable splint (141) and the sleeve (11).

4. The hybrid pollination device for wheat breeding according to claim 1, characterized in that: A pressing plate (31) is slidably connected in the sleeve (11), and the pressing plate (31) is in close contact with the upper surface of the absorbent cotton (2).

5. A hybrid pollination device for wheat breeding according to claim 4, characterized in that: A sealing plug (32) is inserted between all the through-hole structures (1102) of the sleeve (11); a plurality of air inlet channel structures (3201) connected to the air inlet of the annular hot air blower (13) are provided on the sealing plug (32); a plurality of air extraction hole structures (3202) connected to the air inlet channel structures (3201) are provided on the sealing plug (32), and the air extraction hole structures (3202) are connected to the internal space of the absorbent cotton (2); and the pressing plate (31) is fixedly connected to the sealing plug (32).

6. A hybrid pollination device for wheat breeding according to claim 5, characterized in that: The sealing plug (32) is provided with annular groove structures (3203) corresponding in number and position to the air inlet channel structures (3201), and the air extraction hole structures (3202) are located within the corresponding annular groove structures (3203).

7. The hybrid pollination device for wheat breeding according to claim 1, characterized in that: The lower end of the telescopic cylinder (12) is configured as a tapered cylindrical structure that contracts downward.

8. The hybrid pollination device for wheat breeding according to claim 7, characterized in that: The outer surface of the conical cylindrical structure at the lower end of the telescopic cylinder (12) is sleeved with a circle of conical telescopic sleeve (4).

9. The hybrid pollination device for wheat breeding according to claim 8, characterized in that: The outer surface of the conical cylindrical structure at the lower end of the telescopic cylinder (12) is provided with a circle of anti-slip convex ring (122) structure, and the conical telescopic sleeve (4) is sleeved on the anti-slip convex ring (122).

10. A hybrid pollination device for wheat breeding according to any one of claims 1 to 9, characterized in that: A plurality of soft touch hairs (5) are fixedly connected inside the telescopic cylinder (12).

Images