A system for detecting the viability of corn seeds

Abstract

This invention belongs to the technical field of seed quality testing equipment and discloses a system for detecting maize seed vigor. The system includes a support platform, an integrating sphere, a sample holder for holding the sample, and an adapter connected to a light source. The support platform is equipped with a sliding platform and a spectrometer for detecting the endosperm and germ surfaces of maize seeds. The spectrometer is connected to the integrating sphere. The sliding platform is slidably connected to three lifting devices. The adapter, sample holder, and integrating sphere are each connected to the sliding platform through one of the lifting devices, with the sample holder located between the adapter and the integrating sphere. The adapter is horizontally positioned, with one end of the adapter furthest from the integrating sphere connected to the light source and the lifting device, and the other end equipped with a collimator. This invention can quickly and accurately detect maize seed vigor without damaging the seeds, reducing testing time and operational complexity.

Description

Technical Field

[0001] This invention belongs to the technical field of seed quality testing equipment, and particularly relates to a system for detecting the vigor of corn seeds. Background Technology

[0002] Seed vigor is an important indicator of seed quality. High-vigor seeds possess significant growth advantages and production potential, making them crucial for single-seed planting. Currently, my country's maize production is gradually moving towards mechanized, precision single-seed planting; therefore, testing the vigor of individual maize seeds is essential.

[0003] Currently, the main methods for identifying seed viability are as follows: (1) Visual inspection: observe the shape and color of the corn embryo with the naked eye. Seeds with protruding or wrinkled embryos that appear dark and dull are fresh and viable and can be used for production. (2) Soaking and germination method: soak 100 seeds in water for about two hours to allow them to swell, place them on moist straw paper, cover them with moist straw paper, and place them in an environment with sufficient oxygen and a room temperature of 10-20℃ to allow the seeds to germinate fully (it takes about 8 days). Then divide the number of germinated seeds by 100 and multiply by 100% to obtain the germination rate. (3) Red ink dyeing method: 1 part red ink and 19 parts tap water are used to make dyeing agent; 100 corn seeds are randomly selected and soaked in water for two hours to make them swell; the swollen embryos and endosperm are peeled out one by one with tweezers; the treated seeds are evenly placed in the incubator and dyeing agent is injected to submerge the seeds. After dyeing for 15-20 minutes, the dyeing agent is poured out and the seeds are rinsed repeatedly with tap water; the dead embryos and endosperm are dark red, and the live embryos are not dyed or are slightly light red. Based on this, the number of live seeds is determined. Divide this by 100 and multiply by 100% to get the germination rate.

[0004] Regarding the aforementioned related technologies, the inventors found that while the seed soaking and germination methods and the red ink staining method are more accurate than the visual inspection method, they cannot guarantee the integrity of the corn seeds; furthermore, the accuracy and efficiency of the three commonly used methods need improvement. Therefore, it is necessary to provide a system that does not damage the seeds, reduces testing time and operational complexity, and enables rapid and accurate detection of corn seed vigor. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a system for detecting maize seed vigor that can quickly and accurately detect maize seed vigor without damaging the seeds, reducing detection time and the complexity of detection operation.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] A system for detecting maize seed vigor, characterized in that it includes a support platform, an integrating sphere, a sample holder for holding the sample, and an adapter connected to a light source. The support platform is equipped with a sliding platform and a spectrometer for detecting the endosperm surface and germ surface of the maize seed, and the spectrometer is connected to the integrating sphere.

[0008] The sliding platform is slidably connected to three lifting devices. The adapter, sample holder and integrating sphere are each connected to the sliding platform through a lifting device, and the sample holder is located between the adapter and the integrating sphere.

[0009] The adapter is horizontally positioned, with one end of the adapter away from the integrating sphere connected to the light source and the lifting device, and the other end equipped with a collimator.

[0010] Furthermore, the lifting device includes a sliding sleeve and a lifting rod. The sliding sleeve is sleeved on the outer circumferential surface of the lifting rod and is slidably connected to the lifting rod. The top of the lifting rod protrudes from the sliding sleeve, and the side wall of the sliding sleeve is provided with locking bolts for fixing the lifting rod. The adapter, sample holder, and integrating ball are respectively fixedly connected to the top of the lifting rod.

[0011] The sliding platform includes a base and a slide bar arranged along the length of the base. The bottom of the sliding sleeve is mounted on the slide bar and slidably connected to the slide bar. The bottom of the sliding sleeve is provided with a positioning bolt for limiting the sliding of the sliding sleeve along the slide bar.

[0012] Furthermore, the sample holder includes a horizontal mounting plate, a vertically arranged connecting plate, and a limiting plate. The mounting plate is fixedly connected to the lifting rod, and one end of the mounting plate facing the integrating sphere is fixedly connected to the bottom of the limiting plate, while the other end is fixedly connected to the bottom of the connecting plate.

[0013] A vertical clamping plate is provided between the connecting plate and the limiting plate, and a clamping groove for clamping the sample is formed between the clamping plate and the limiting plate; the connecting plate is provided with at least one clamping bolt for adjusting the width of the clamping groove.

[0014] Furthermore, the clamping plate is connected to the connecting plate by a spring.

[0015] Furthermore, the end of the adapter furthest from the integrating sphere is connected to the light source via a light source conduit.

[0016] Compared with the prior art, the present invention has the following technical effects:

[0017] This invention discloses a system for detecting the vigor of corn seeds. When testing corn seeds, the seeds are placed between two parallel quartz glass plates to form a sample. The sample is then placed in a clamping groove formed by a clamping plate and a limiting plate. The clamping nut is adjusted to fix the sample in the clamping groove. Three lifting devices are adjusted to align the adapter, collimator, sample, and the end cap of the integrating sphere in a straight line. The vigor of the corn seeds can then be detected using a light source guide tube, adapter, collimator, integrating sphere, and spectrometer.

[0018] In this way, the sample preparation process and the entire detection process will not damage the corn seeds. Compared with existing related technologies, it can quickly and accurately detect the viability of corn seeds without damaging the seeds, reducing detection time and the complexity of detection operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a system for detecting maize seed vigor according to an embodiment of the present invention;

[0020] Figure 2 This is a diagram showing the positional relationship between the adapter and the integrating sphere in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Support platform; 2. Spectrometer; 3. Sliding platform; 4. Lifting device; 5. Sample holder; 6. Adapter; 7. Sample; 9. Integrating sphere; 10. End cap; 11. Optical fiber; 12. Collimator; 14. Light source guide tube. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-2 The specific content of this invention will be explained in further detail below.

[0023] This invention discloses a system for detecting maize seed vigor, referring to... Figure 1 and Figure 2 The system includes a support platform 1, an adapter 6 connected to a light source, a sample holder 5, and an integrating sphere 9. The support platform 1 is equipped with a sliding platform 3 and a spectrometer 2 for detecting the endosperm and germ surfaces of corn seeds. The spectrometer 2 is connected to the integrating sphere 9 via an optical fiber 11. The support platform 1 is an optical platform.

[0024] The sliding platform 3 includes a base and a slide bar arranged along the length of the base; three lifting devices 4 are mounted on the slide bar and are slidably connected to the slide bar. The adapter 6, the sample holder 5 and the integrating sphere 9 are respectively connected to the sliding platform 3 through a lifting device 4, and the sample holder 5 is located between the adapter 6 and the integrating sphere 9.

[0025] The lifting device 4 includes a sliding sleeve and a lifting rod. The sliding sleeve is fitted onto the outer circumference of the lifting rod and slidably connected to it, with the top of the lifting rod protruding from the sliding sleeve. Locking bolts for fixing the lifting rod are provided on the side wall of the sliding sleeve. The bottom of the sliding sleeve is mounted on a slide bar and slidably connected to it, with positioning bolts at the bottom of the sliding sleeve to limit its movement along the slide bar. The adapter 6, sample holder 5, and integrating sphere 9 are each fixedly connected to the top of one of the lifting rods.

[0026] The sample holder 5 includes a horizontal mounting plate, a vertically arranged connecting plate, and a limiting plate. The mounting plate is fixedly connected to the lifting rod, and one end of the mounting plate facing the integrating sphere 9 is fixedly connected to the bottom of the limiting plate, and the other end is fixedly connected to the bottom of the connecting plate. A vertical clamping plate is provided between the connecting plate and the limiting plate. The clamping plate is connected to the connecting plate by a spring, and a clamping groove for clamping the sample 7 is formed between the clamping plate and the limiting plate. The connecting plate is provided with two clamping bolts for adjusting the width of the clamping groove.

[0027] The adapter 6 is set horizontally, and the end of the adapter 6 away from the integrating sphere 9 is connected to the light source through the light source guide tube 14. The end of the adapter 6 near the integrating sphere 9 is provided with a collimator 12, and the other end is fixedly connected to the lifting rod through a fixing block.

[0028] The implementation principle of a system for detecting maize seed vigor according to an embodiment of the present invention is as follows: During detection, maize seeds are placed in two parallel quartz glass plates to form a sample 7 to be tested. The sample 7 is placed in a clamping groove formed by a clamping plate and a limiting plate. The clamping nut is adjusted to fix the sample 7 in the clamping groove. The three lifting devices 4 are adjusted so that the adapter 6, collimator 12, sample 7 and end cap 10 of integrating sphere 9 are in a straight line. Then, the maize seed vigor can be detected through the light source guide tube 14, adapter 6, collimator 12, integrating sphere 9 and spectrometer 2.

[0029] Thus, the sample preparation process and the entire detection process do not damage the corn seeds. Compared with existing related technologies, it can quickly and accurately detect the viability of corn seeds without damaging the seeds, reducing detection time and the complexity of detection operations.

Claims

1. A system for detecting maize seed vigor, characterized in that: Includes a support platform (1), an integrating sphere (9), a sample holder (5) for holding the sample (7), and an adapter (6) connected to a light source. The support platform (1) is equipped with a sliding platform (3) and a spectrometer (2) for detecting the endosperm surface and germ surface of corn seeds. The spectrometer (2) is connected to the integrating sphere (9). The sliding platform (3) is slidably connected to three lifting devices (4). The adapter (6), sample holder (5) and integrating sphere (9) are respectively connected to the sliding platform (3) through a lifting device (4), and the sample holder (5) is located between the adapter (6) and the integrating sphere (9). The adapter (6) is set horizontally, and one end of the adapter (6) away from the integrating sphere (9) is connected to the light source and the lifting device (4), and the other end is provided with a collimator (12). The sample support (5) includes a horizontal mounting plate, a vertically arranged connecting plate and a limiting plate. The mounting plate is fixedly connected to the lifting rod, and one end of the mounting plate facing the integrating ball (9) is fixedly connected to the bottom of the limiting plate and the other end is fixedly connected to the bottom of the connecting plate. A vertical clamping plate is provided between the connecting plate and the limiting plate, and a clamping groove for clamping the sample (7) is formed between the clamping plate and the limiting plate; the connecting plate is provided with at least one clamping bolt for adjusting the width of the clamping groove; The clamping plate is connected to the connecting plate by a spring; The adapter (6) is connected to the light source at the end away from the integrating sphere (9) via the light source conduit (14).

2. The system for detecting maize seed vigor as described in claim 1, characterized in that, The lifting device (4) includes a sliding sleeve and a lifting rod. The sliding sleeve is sleeved on the outer circumferential surface of the lifting rod and is slidably connected to the lifting rod. The top of the lifting rod protrudes from the sliding sleeve, and the side wall of the sliding sleeve is provided with locking bolts for fixing the lifting rod. The adapter (6), the sample bracket (5) and the integrating ball (9) are respectively fixedly connected to the top of the lifting rod. The sliding platform (3) includes a base and a slide bar arranged along the length of the base. The bottom of the sliding sleeve is mounted on the slide bar and slidably connected to the slide bar. The bottom of the sliding sleeve is provided with a positioning bolt for limiting the sliding of the sliding sleeve along the slide bar.

Images