If you want to locate seed or vegetative lots that could be used in an Alternative to the Chief Forester's Standards for Seed Use, then the Seedlot Search for CBST Alternatives is a good choice.
Unlike the Suitable Seedlot Search for CBST, this search identifies seedlots that fall below the genetically suitability that is set for the species of interest.
Please note: licensees should obtain approval from the Chief Forester to use an alternative seedlot prior to submitting and approving a seedling request.
If you are unable to find seedlots that comply with Climate Based Seed Transfer (CBST), the Seedlot Search for CBST Alternatives screen can be used to locate seed or vegetative lots to be used as an alternative to the Chief Forester's Standards for Seed Use for your planting site. The filters you enter in your search will determine the type of information you will receive. Each variable and combination will provide a slightly different picture of the information available.
During your search you will notice that your screen will change to display the search results at the bottom. If you require more information, you can click on the CBST button to view information about the seedlot CBST Areas of Use, or the DT button to view the Details screen.
Click on the Search tab and select Seedlot Search for CBST Alternatives.
View sample Seedlot Search for CBST Alternatives screen
Now that you know how search filters work, we'll take a look at ways you can use them.
The more information you include in your search the shorter the list of results. If you add too many filters in your search you may receive the message "No records found". Remember, the skill to searching is finding the balance between just enough information to get your results, but not so much information the system cannot locate matching records.
The results of your search are displayed at the bottom of the search screen.
Sorting order
The following image is the bottom half of the Seedlot Search for CBST Alternatives screen with search results displayed. The results are sorted based on the genetic suitability, and the genetic class and worth. Seedlots with the highest genetic suitability and genetic worth appear at the top of the screen.
Genetic suitability is used to describe the adaptive capacity of climatically-suitable seed and vegetative lots selected under CBST. Genetic suitability under CBST is a measure of the relative height growth associated with transferring seed (climatic distances) between each pair of BEC units (associated with the projected climate space of that species). For more information, please refer to the genetic suitability and climate based seed transfer bulletin (PDF, 336KB) posted on the Climate Based Seed Transfer webpage.
There are several items you should be aware of when viewing search results.
Seedlot detail screen
View sample Seedlot Detail screen
For more information about the Seedlot Detail screen, go to the Lot Search - Viewing Results section in this module.
Seedlot Search for CBST Alternatives training video
To learn how to access the screen, enter search criteria and interpret search results, please watch the Seedlot Search for CBST Alternatives Training Video (MP4, 7.4MB).
If you are having problems using SPAR and can't find the answers in this Tutorial or on SPAR's online Help Guide, contact: