Simple field measurement device for included angle of corn leaves
By designing a simple device for measuring corn leaf angle in the field, the problems of low detection efficiency and insufficient accuracy in existing technologies are solved, and fast and accurate leaf angle measurement is achieved, which improves the efficiency and accuracy of corn genetic breeding research.
Patent Information
- Application Number
- CN202422868970.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The existing technology lacks a low-cost, easy-to-operate field measurement device for corn leaf angles, resulting in low detection efficiency and insufficient accuracy, which affects corn genetic breeding research.
A simple device for measuring the angle of corn leaves in the field was designed. It included an outer column, an inner column, a crossbeam, a fixing clamp, a base, and an angle scale. The corn stalks were clamped by the fixing clamp, and the angle scale was rotated into a fixed groove to read the angle, thereby achieving fast and accurate leaf angle measurement.
The speed and efficiency of corn leaf angle measurement are improved, manual operation is reduced, measurement accuracy is improved, and experimental funds are saved.
Smart Images
Figure CN223400307U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a simple device for measuring the angle of corn leaves in the field. Background Art
[0002] Leaf angle is a key plant architecture trait in maize, directly linked to high density tolerance and lodging resistance. It influences light distribution within the canopy and light energy utilization, ultimately impacting yield. Therefore, this trait is a key target for maize genetic breeding research. Accurate and efficient phenotyping of leaf angle is crucial for conducting related research, including gene discovery, new material development, and resource screening. Maize plants are tall, making it difficult to collect entire plants and measure leaf angle indoors using precision instruments, as is the case with crops like wheat and rice. Therefore, most researchers conduct field measurements for this trait. The tools used are often conventional protractors or angle rulers, requiring the coordination of two or more operators. One operator holds one end of the measuring tool horizontally against the maize stalk, while another operator observes and records the angle between the stalk and the leaf. Strong winds in the field require additional personnel to maintain the tool in place, resulting in low efficiency and limited accuracy.
[0003] Currently, there are no low-cost, easy-to-use simple devices or instruments for field measurement of corn leaf angle on the market, which affects the efficiency of detecting this trait. Utility Model Content
[0004] The utility model provides a simple device for measuring the angle of corn leaves in the field, which can greatly speed up the operation speed and efficiency, reduce labor, improve work efficiency and accuracy, and save experimental funds during the measurement of the angle of corn leaves in the field.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A simple device for measuring the angle of corn leaves in the field, characterized in that: the upper parts of the outer column and the inner column are fixedly connected by a crossbeam, the outer column is welded and fixed to one of the clips of the fixing clamp, and the other clip of the fixing clamp is used to clamp the corn stalks, a fixing groove is provided at the center of the crossbeam, the lower parts of the outer column and the inner column are welded and fixed to one end of the base, and the other end of the base is hinged and fixed to the angle scale by a rotating shaft, and the angle scale can be placed in the fixing groove by rotation.
[0007] The simple device for measuring the angle of corn leaves in the field, wherein: the outer column and the inner column are in contact with the corn stalk to be clamped by the fixing clamp.
[0008] The simple device for measuring the angle of corn leaves in the field, wherein: the angle range of the angle scale is 0 degrees to 90 degrees, the 0-degree end of the angle scale is placed in the fixed groove, and the 90-degree end of the angle scale is hinged and fixed to the base through the rotating shaft.
[0009] The beneficial effects of the utility model are as follows: in the measurement of leaf angles in corn fields, the operation speed and efficiency can be greatly accelerated, labor can be reduced, work efficiency and accuracy can be improved, and experimental funds can be saved. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a structural diagram of a simple device for measuring corn leaf angle in the field.
[0011] Figure 2 This is a structural diagram after the outer and inner columns are connected to the base.
[0012] Explanation of the reference numerals: 1 - outer column; 2 - inner column; 3 - crossbeam; 4 - fixing clamp; 5 - base; 6 - rotating shaft; 7 - angle scale; 8 - fixing groove. DETAILED DESCRIPTION
[0013] like Figures 1 to 2 As shown, a simple device for measuring the angle of corn leaves in the field is characterized in that: the upper parts of the outer column 1 and the inner column 2 are fixedly connected by a crossbeam 3, the outer column 1 and the inner column 2 are fitted with the corn stalks, the outer column 1 is welded and fixed to one of the clips of the fixing clamp 4, and the other clip of the fixing clamp 4 is used to clamp the corn stalks, a fixing groove 8 is provided at the center of the crossbeam 3, the lower parts of the outer column 1 and the inner column 2 are welded and fixed to one end of the base 5, the other end of the base 5 is hinged and fixed to the angle scale 7 by the rotating shaft 6, and the angle scale 7 can be placed in the fixing groove 8 by rotation. In detail, the angle range of the angle scale 7 is 0 degrees to 90 degrees, the 0 degree end of the angle scale 7 is placed in the fixing groove 8, and the 90 degree end of the angle scale 7 is hinged and fixed to the base 5 by the rotating shaft 6.
[0014] In an embodiment, when in use, the connecting ends of the outer column 1 and the inner column 2 and the base 5 are fitted to the connection between the leaf to be measured and the corn stalk, and the corn stalk is clamped by the fixing clamp 4. At this time, the axial direction of the corn stalk is horizontal with the axial direction of the outer column 1 and the inner column 2. The base 5 is adjusted so that it is perpendicular to the corn stalk, and the angle scale 7 is rotated upward so that the 0 degree end of the angle scale 7 is placed in the fixing groove 8 of the beam 3. The operator can read the angle between the corn stalk and the leaf to be measured, which is the leaf angle of the leaf.
[0015] The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make simple changes or substitutions based on the above embodiments without departing from the technical concept of the present invention, and these changes still fall within the scope of protection of the present invention.
Claims
1. A simple device for measuring the angle of corn leaves in the field, characterized by: The upper parts of the outer column (1) and the inner column (2) are fixedly connected via a crossbeam (3); the outer column (1) is welded and fixed to one of the clips of the fixing clamp (4); the other clip of the fixing clamp (4) is used to clamp the corn stalk; a fixing groove (8) is provided at the center of the crossbeam (3); the lower parts of the outer column (1) and the inner column (2) are welded and fixed to one end of the base (5); the other end of the base (5) is hinged and fixed to an angle scale (7) via a rotating shaft (6); and the angle scale (7) can be placed in the fixing groove (8) by rotating.
2. The simple device for measuring corn leaf angle in the field according to claim 1, characterized in that: The outer column (1) and the inner column (2) fit the corn stalk and are clamped by the fixing clamp (4).
3. The simple device for measuring corn leaf angle in the field according to claim 1, characterized in that: The angle range of the angle scale (7) is from 0 degrees to 90 degrees, the 0-degree end of the angle scale (7) is placed in the fixing groove (8), and the 90-degree end of the angle scale (7) is hinged and fixed to the base (5) via the rotating shaft (6).