JP2514492B2 - Germination test device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a germination test apparatus for testing the germination rate of seeds such as rice and wheat.

[0002]

2. Description of the Related Art Generally, in order to test the germination rate of seeds, the number of seeds, for example, 100 seeds, is sown on a filter paper-lined dish, which is put in an incubator and watered every other day. On the 5th to 14th days, this is taken out from the incubator and the number of germinated seedlings is manually counted.

[0003]

However, counting seeds and sprouting seedlings require a lot of time and labor, and in particular, sprouting seedlings are entangled with each other in a sheare. It was even more laborious because it could only be counted accurately after removing the roots.

[0004]

The present invention is intended to save labor in the germination test work as described above. To achieve the object, the present invention provides an elongated gutter-shaped nursery box and a nursery box in the nursery box. First, to provide a germination test apparatus comprising a seeder for sowing a predetermined number of seeds in a row at a constant pitch, and a counter for optically counting the number of germinated seedlings established from the seedling raising box. It is a feature of.

Further, according to the present invention, a shallow box-shaped seeder body having a plurality of through holes through which seeds can be transmitted is formed at a constant pitch in the bottom plate, and a shutter plate capable of sliding on the bottom plate in the seeder body. 2. The seeder of the germination assay device according to claim 1, wherein through holes are formed in the shutter plate in the same pitch when the shutter plate slides, and the through holes match the through holes when sliding. This is the second feature.

Further, according to the present invention, a guide rail is horizontally provided so as to be set at a predetermined position and parallel to the nursery box, and a forked arm which runs by a motor along the guide rail is provided, and both ends of the forked arm are provided. Is provided so that the optical axes of the floodlight and the light receiver face each other, and the germinated seedlings that are established from the seedling raising box are moved so that the bifurcated arm is moved so as to be located between the light emitter and the light receiver. The third feature is that the counting is performed.

[0007]

[Operation] A predetermined number of seeds can be easily sown with a constant pitch by placing the seeder on the seedling raising box and performing seeding operation. The number of germinated seedlings established from the seedling raising box can be easily and accurately counted by a counter.

[0008]

EXAMPLE FIG. 1 shows a nursery box used in the present invention. This nursery box 1 is formed of a transparent acrylic resin plate in the shape of a thin rectangular gutter having a width of several centimeters. The seedling raising box 1 is provided with agar 2 for seed culture before use.

2 to 5 show a seeder 4 for sowing a predetermined number of seeds 3, 3, ... In a row with a constant pitch in the seedling raising box 1. The seeder 4 forms a rectangular shallow box-shaped seeder 4 main body with a stainless plate, and a bottom plate 5 of the seeder 4 is formed.
A large number of lanceolate through holes 6, 6 ... Through which seeds can pass are formed in a fixed pitch. The seeding device 4 of this embodiment is provided with the through holes 6, 6, ... In four rows so that four seedling raising boxes 1 can be seeded together. Reference numeral 7 denotes a shutter plate superposed on the bottom plate 5 so as to be slidable in the longitudinal direction. The shutter plate 7 is provided with the same through holes 8, 8 ... At the same pitch as the through holes 6, 6. ing. 9 is a holding piece fixed to the inner surfaces of the side plates 4a and 4a of the seeder 4 in order to prevent the shutter plate 7 from floating, and 10 is an L-shaped protrusion projecting from one end of the shutter plate 7.
It is a glyph handle. A bracket 13 is fixed to the upper surface of the end of the shutter plate 7 on the side opposite to the handle 10.
3, a supporting shaft 11 penetrating the side plate 4b of the seeder 4 is provided in a protruding manner, and a compression coil spring 14 is interposed between the flat head 12 at the tip of the supporting shaft 11 and the outer surface of the side plate. The shutter plate 7 is always biased to the left in FIG. 3, and the biasing causes the through holes 8, 8 ... to shift from the through holes 6, 6 ...

Reference numeral 15 is an enclosing plate provided in a peripheral shape on the lower surface of the bottom plate 5 in a hanging shape. Further, 16, 16 ...
Guide plates hanging on both sides of 6 ...
6 ... Seeds may fall between them.

The side plates 4a, 4a of the seeder 4 are formed longer than the bottom plate 5, and a movable plate 18 is hinged to the side plate 4b at one end by a hinge 17. Reference numeral 19 is a leaf spring that biases the movable plate 18 upward, and 20 is a handle portion fixed to the upper surface of the movable plate 18. When the grip portion 20 is pressed downward, the movable plate 18 can be expanded downward as shown by the phantom line in FIG. 3 against the elasticity of the leaf spring 19.

6 and 7 show a counter that optically counts the number of germinated seedlings established from the seedling raising box 1. That is, the standing plates 31, 3 provided at both ends of the substrate 30.
Round bar-shaped guide rails 32, 32 are provided in parallel with each other, and a rack 33 is provided in parallel with the guide rails 32, 32.
Is provided, and the upper and lower parts are penetrated through the guide rails 32 and 32 to support the traveling body 34 on the guide rails 32 and 32, and the motor 35 is fixed to the traveling body 34, and the rotation shaft of the motor 35 The provided small gear 36 is meshed with the rack 33, and the driving of the motor 35 causes the traveling body 34 to travel along the guide rails 32, 32. A mounting rod 38 is attached to the traveling body 34 through a mounting position adjusting screw 37.
Is provided horizontally in the front, and a forked arm 40 is provided at the tip of the attachment rod 38 via an attachment height adjusting screw 39. The crotch interval of the bifurcated arm 40 can be adjusted by loosening the interval adjusting screw 46.

Reference numeral 41 is a counter, and the optical fibers 42 and 43 are led out from the counter 41, and the optical fiber 4
The tips of the reference numerals 2, 43 face both ends of the bifurcated arm 40. The optical fibers 42 and 43 communicate with a light emitter and a light receiver provided in the counter 41, and the light emitted from the light emitter is emitted from one end of the bifurcated arm 40 and is guided by the optical fiber of the other end of the bifurcated arm 40. The light is received and the signal is transmitted to the light receiver. And the counter 41
The presence / absence of a light-blocking object between both ends of the bifurcated arm 40 is measured by the signal, and the number of times of light blocking is displayed on the digital display 44. Reference numeral 45 is a positioning block fixed on the substrate 30.

In the germination test apparatus thus constructed, rice seeds, for example, are placed on the shutter plate 7 of the seeder 4 and the seeder 4 is rocked to the left or right, so that the seeds of the seeder plate 7 permeate the shutter plate 7. Holes 8 and 8 ... Enter inside. The remaining seeds are moved to the movable plate 18 and unfolded downward to remove it from the shutter plate 7. Then, three seedling raising boxes 1 are arranged side by side, the seeder 4 is placed on the seedling raising boxes 1, and a finger is put on the handle 10 to pull the shutter plate 7 to the right in FIG. 3 to form the through holes 8, 8 ... , 6 ... As a result, the seeds contained in the through holes 8, 8 ... Drop through the through holes 6, 6 ... And pass between the guide plates 16, 16 ... And are seeded on the agar of the seedling raising box 1 at a constant pitch.

The seedling raising box 1 is placed in an incubator whose seed germination temperature and humidity are controlled. After a few days, germinated seedlings are established from this nursery box 1. Next, when counting the number of germinated seedlings, the nursery box 1 is set at a predetermined position on the substrate 30 by the positioning block 45 as shown in FIG. Nursery box 1
The bifurcated arms 40 are made to run by driving the motor 35 so that they are located on both sides of the germinated seedlings established from. At this time, if the seedling is out, the light emitted from one optical fiber is blocked by the seedling and does not enter the other optical fiber, so that the bifurcated arm 40 travels from one end of the nursery box 1 to the other. The counter 41 counts the number of times the light is blocked, and the number is displayed on the digital display 44. Therefore, the germination rate can be easily obtained by the ratio of the number displayed on the digital display 44 and the number of seeds.

[0016]

As described above, the germination assay device of the present invention comprises an elongated gutter-shaped nursery box, a seeder for sowing a predetermined number of seeds in a row at a constant pitch in the nursery box, and the nursery box. Since it consists of a counter that optically counts the number of germinated seedlings established from, the number of seeds seeded in the nursery box and the number of germinated seedlings established from the nursery box can be easily determined, and the germination rate can be calculated. It can be easily and accurately tested. Therefore, there is a beneficial effect that the present invention can save labor in the germination rate test, which has conventionally been troublesome.

[Brief description of drawings]

FIG. 1 is a perspective view of a nursery box.

FIG. 2 is a perspective view of a seeder.

FIG. 3 is a vertical sectional view of a seeder.

FIG. 4 is a cross-sectional view of the seeder.

5 is a partially enlarged view of FIG.

FIG. 6 is a perspective view of a counter.

FIG. 7 is a cross-sectional view of the counter.

[Explanation of symbols]

 1 Seedling box 2 Agar 3 Seeds 4 Seeder 5 Bottom plate 6 Through hole 7 Shatter plate 8 Through hole 32 Guide rail 35 Motor 40 Bifurcated arm 41 Counter 42, 43 Optical fiber 44 Digital indicator

Claims (3)

(57) [Claims] 1. An elongated gutter-shaped nursery box, a seeder for sowing a predetermined number of seeds in a row at a constant pitch in the nursery box, and an optical number of germinated seedlings established from the nursery box. A germination test device consisting of a counter for counting. 2. A shallow box-shaped seeder body in which a large number of through holes through which seeds can penetrate is formed at a constant pitch in the bottom plate, and a shutter plate capable of sliding on the bottom plate is polymerized in the seeder body. The seeder of the germination test apparatus according to claim 1, wherein the shutter plate is provided with through holes that match the respective through holes at the time of sliding, with the same pitch. 3. A guide rail is provided horizontally so as to be parallel to a seedling raising box set at a predetermined position, and a bifurcated arm that runs with a motor is provided along the guide rail, and a floodlight is provided at both ends of the bifurcated arm. And the optical axis of the light receiver are opposed to each other, and the germinated seedlings established from the seedling raising box are moved so that the bifurcated arm is moved so as to be located between the light projector and the light receiver, and the number of times light is blocked by the germinated seedlings is counted. The counter of the germination assay device according to claim 1, wherein the counter is used.