LemnaTec launched new seed germination detection system Germination Scanalyzer

Article source: | 2017-09-06

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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

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Figure 1: seed tray storage rack, robotic arm with sensor, weighing station and seed collector (optional), size unit, mm.
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Figure 2: the robotic arm and imaging system are in the center, the seed pallet shelf is on the periphery, and the right side of the picture is the weighing station.植物发芽检测系统46002.jpg
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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.

  

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4:时间跨度实验数据输出范例,几天内不同时间点发芽种子的数量占种子总数的百分比(发芽率)。不同的颜色曲线代表不同的种子类型。
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图5:可以根据用户需求生成不同形式的数据报告,并进行统计分析。


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