Seed quality refers to the sum of the potential performance indexes of a batch of seeds. There are number of these important indicators including inert substances and other crop or weed seeds (purity), in addition to the germination rate, vigor, seed morphology and disease resistance, high quality seeds should meet the minimum standards of these features. However, the traditional method of analysis of these features is exceptionally heavy on seed company or laboratory, automated method is effective to reduce the time and cost, accuracy and repeatability can also improve results.
LemnaTec is a global leader in the use of sensors and automation to perform non-destructive digital analysis of plant phenotypes. LemnaTec provides visual identification, robotics and intelligent software to automate seed analysis in research and commercial breeding. Seed germination detection system is a cost-effective seed management solution for seed companies and research institutions by LemnaTec.
Functional characteristics of Germination Scanalyzer
Seed storage
Periodically check seed storage status automatically
Analysis of seed germination index
Establish the standardization process of seed quality management
Composition of Germination Scanalyzer system
Industrial digital cameras for image acquisition
? image processing software, users can create custom solutions
The manipulator is used for sample transfer between storage space and sensors
Germination Scanalyzer measurement index
Different plant species and seed coating of size, color and shape, based on predefined classification standard (number, size, color, shape) classification and quantification of seeds, including but not limited to the following indicators:
Seed germination rate (%)
Seed germination rate (time)
Seed morphological index (size, roundness)
Seed color and color distribution
Seedling morphological parameters (root length, hypocotyl length)
Seedling colour and color distribution
Advantages of Germination Scanalyzer
High throughput analysis
? 24 x 7 all-weather sample monitoring
Simultaneous imaging and analysis of hundreds of seeds
High throughput screening improves quality and efficiency of seed analysis
Improve accuracy and repeatability
Using this platform, establish the standardized process of seed quality management for users
flexibility
Modular design can be designed according to the needs of the analysis speed and storage capacity
Figure 3: Blue / grey filter paper placed in a specially designed plastic tray. At the beginning of the experiment, a certain amount of water was applied on the filter paper, and then a quantitative seed was loaded on the filter paper. The pallet is stored on the shelf and is periodically imaged and weighed by the robot arm. The seed is detected by its background color characteristics such as hue and saturation. The shape of the seed is counted. Roots are used as clues to seed germination; only roots around the seed embryo and within a certain radius are considered as clues to germination. Each seed has a detected root segment (within the observation radius) labeled as germination. In order to optimize root detection, some rules are applied, such as proximity principle, region of interest and germination cues. The length of the root is measured according to the inner axis of the root shape detected.
Main technical parameters of Germination Scanalyzer
? capacity: 840 pallets (single pallet 253 x 364 mm)
? imaging speed: 6 hours, all 840 pallets can be imaged once
? imaging unit: 1 x 28 MP RGB sensor, 2 x LED lamp board
? dimensions: high 3145mm, long 6432mm, deep 2910mm
? moisture content analysis: each pallet can be weighed to assess water content
? additional modules: pallets can be loaded from trailers (a single cart with 68 pallets)
? data storage: processing, imaging, automatic storage.
Origin: Germany LemnaTec
