Weed Seed Identification

ILGM

Buy Cannabis Seeds Online

How to identify Minnesota weeds: Photos and guidance to help crop producers identify annual grass weeds, annual broadleaf weeds and perennials. Classification of weed seeds based on visual images and deep learning Images of single weed seeds were rapidly and completely segmented, and six popular and novel deep Convolutional Neural Cannabis Seed Identification Guide: distinguishing viable seeds from non-viable seeds before planting

Weed identification

Find photos and identifying characteristics that’ll help you identify common Minnesota weeds.

Types of weeds

Find photos and identifying characteristics that’ll help you identify common Minnesota weeds.

  • Barnyardgrass.
  • Large crabgrass.
  • Green, giant and yellow foxtail.
  • Wild oat.
  • Fall panicum.
  • Wild proso millet.
  • Amaranth family: Waterhemp, Palmer amaranth and redroot pigweed.
  • Giant and common ragweed.
  • Common cocklebur.
  • Common lambsquarters.
  • Velvetleaf and more.
  • Jerusalem artichoke
  • Field and hedge bindweeds
  • Yellow nutsedge
  • Quackgrass
  • Canada thistle and perennial sowthistle.
  • A step-by-step key to identify seedlings using plant characteristics.
  • Includes both broadleaf and grass seedlings.

Weed image search tool: From the Strand Memorial Herbarium.

  • Plants are searchable by common names, plant families or genera.

Minnesota Crop News

Weed management

Building a stronger Minnesota

University of Minnesota Extension discovers science-based solutions, delivers practical education, and engages Minnesotans to build a better future.

© 2022 Regents of the University of Minnesota. All rights reserved. The University of Minnesota is an equal opportunity educator and employer.

Classification of weed seeds based on visual images and deep learning

Images of single weed seeds were rapidly and completely segmented, and six popular and novel deep Convolutional Neural Network models are compared to identify the best method for intelligently identifying 140 species of weed seeds.

This research is beneficial for developing a detection system for weed seeds in various applications.

When the weed seed dataset is expanded, the model can simply be retrained and the old CNN model can be replaced to complete the upgrade.

Abstract

Weeds are mainly spread by weed seeds being mixed with agricultural and forestry crop seeds, grain, animal hair, and other plant products, and disturb the growing environment of target plants such as crops and wild native plants. The accurate and efficient classification of weed seeds is important for the effective management and control of weeds. However, classification remains mainly dependent on destructive sampling-based manual inspection, which has a high cost and rather low flux. We considered that this problem could be solved using a nondestructive intelligent image recognition method. First, on the basis of the establishment of the image acquisition system for weed seeds, images of single weed seeds were rapidly and completely segmented, and a total of 47 696 samples of 140 species of weed seeds and foreign materials remained. Then, six popular and novel deep Convolutional Neural Network (CNN) models are compared to identify the best method for intelligently identifying 140 species of weed seeds. Of these samples, 33 600 samples are randomly selected as the training dataset for model training, and the remaining 14 096 samples are used as the testing dataset for model testing. AlexNet and GoogLeNet emerged from the quantitative evaluation as the best methods. AlexNet has strong classification accuracy and efficiency (low time consumption), and GoogLeNet has the best classification accuracy. A suitable CNN model for weed seed classification could be selected according to specific identification accuracy requirements and time costs of applications. This research is beneficial for developing a detection system for weed seeds in various applications. The resolution of taxonomic issues and problems associated with the identification of these weed seeds may allow for more effective management and control.

See also  Weed Seeds Nl

Seed identification guide before planting

Cannabis Seed Identification Guide: distinguishing viable seeds from non-viable seeds before planting

Strong, high quality cannabis seeds will ensure a high quality cannabis plant. So, if and how is it possible to identify whether cannabis seeds are good or not? And how long do these seeds retain their vitality? Answers on seed identification:

Identification of a seed

Most of the cannabis seeds offered for sale in seed shops are of high quality. In most cases, they exhibit high germination rates of at least 95% and sometimes even higher . On the other hand, seeds from an unknown source may well be defective and eventually lead to the growth of a weak and disease-prone plant with slow growth rate and low harvest potential.

You can tell a lot about the health of a seed by looking at it. Here are a few different things you should look for when deciding whether a cannabis seed is good or not.

Dark color

Good cannabis seeds will be brown, black and / or gray. White or green seeds are immature and unlikely to germinate. Your seed should also have scratches or spots all around.

Waxy coating

A healthy seed will have a thin waxy coating around it. This coating seems to have a slight shine.

Hard shell

You should be able to lightly squeeze a seed without crushing. If a seed crushes easily between your fingers, the seed is probably dead or weak and will not grow well.

No cracks

Inspect the entire seed to make sure there are no small cracks or holes. This will likely cause the seeds to not sprout.

See also  Weed And Seed Las Cruces

Means of testing cannabis seeds

You have a basic guide to distinguish good from bad seeds. Now if the doubt persists, here are several ways to test the seeds.

Test method No.1: seeds floating in water

It’s a great test that works for many different seeds – and not just cannabis. Take your seeds and drop them in a cup full of hot water (not too hot) then wait a few hours. If they sink, they are probably good for a crop. If they don’t leak, they’re probably dead and won’t grow.

Note: Do this only if you are ready to germinate your plants. Otherwise, it could hurt your seed.

2 test method: just before and try to sprout the seed

I know it sounds obvious, but it really is the best information .

If you really want to know if a cannabis seed is capable of germinating, put it in the ground .

How to sprout a cannabis seed

This is the first step in the journey from your cannabis nursery to a whole plant. There are several ways to do this. One of the ways is to just plant it in your soil and see if a plant appears. It’s old school, but no one can deny its simplicity. Plant the seed about 1/4 “(inch) deep and wait.

Another way is to put the seeds on a damp paper towel. Make sure the paper towel is damp, but not too wet… If it gets dry, you can add a few drops of water to the paper towel. Leave the paper towel in a dark place. Remember that the time varies between strains. Some may take just 2 days, while others may take longer… Keep checking them once a day.

See also  Weed Seed Dormancy

Male or female ?

Unfortunately, there is no way of knowing if a cannabis seed is going to be male or female. And just by looking at it or doing a simple test.

If you want feminized seeds, you will need to buy them from a reputable seed bank. Make sure they say they are “feminized” – if they don’t, the seeds probably won’t, or rather randomly. These are the so-called “regular” seeds

If all you get is a bag seed, the only way to know if it’s going to be male or female is to develop it.

expiration

The seeds have an expiration date. But if you store your seeds properly, they can remain viable for years and years. Moisture, UV degradation and extreme temperatures could affect the quality of your seeds.

If you plan to store your seeds for a long time, be sure to keep them in an airtight container in a dark area. Ideally, seeds should be stored in an air-conditioned area (such as inside your home rather than in a shed or garage). A survey shows that cannabis seeds sealed in the laboratory were still viable after 19 years.

Conclusion

It’s nice to know what to look for, but in the end the best test is just to put it in the ground.

If you are using seed bags you never really know what you will get anyway. If you bought your seeds from a seed bank, you shouldn’t worry about it.

How useful was this post?

Click on a star to rate it!

Average rating 4 / 5. Vote count: 1

No votes so far! Be the first to rate this post.