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Operational seed planning reference
Checklist
for the Seed Planner and Definitions
Objectives
This reference is intended to assist
persons with planning operational seed needs. Specifically, it is intended to
- Provide
persons with a checklist for determining their tree seed needs and supply;
- Provide
useful links and references, such as websites for the Seed Planning and
Registry System (SPAR), SeedMap and the Chief Forester's Standards for Seed
Use;
- Assist
in identifying seed available for specific areas of the province;
- Assist
persons in meeting their reforestation goals, FRPA seed use regulations and the
Chief Forester's Standards for Seed Use; and
- Avoid
unnecessary seed shortages or redundant expenditures (e.g. cone collections).
This reference is not a detailed
guide on how to use SPAR, SeedMap or on how to collect cones from natural
stands, nor does it provide guidance for collecting vegetative lots.
Introduction
Seed planning is important to ensure
that sufficient seed of the right species and provenance is available to
establish free growing stands. Seed used in Crown land reforestation must meet
the Chief Forester's Standards for Seed Use to ensure regenerated stands
are genetically diverse, adapted, healthy and productive, now and in the
future.
There are many variables and
uncertainties in determining future seed and seedling requirements, including
- Changing
harvest levels and operating areas;
- Silviculture
systems used (e.g. clearcut, shelterwood, variable retention, seed tree);
- Stocking
standards, including species selection and densities of planted stock and
natural regeneration;
- Forest disturbances, including
pests and wildfires;
- Changes in seed inventories, including the production of seed orchard seed;
- Changes in seed transfer standards in response to climate change; and
- Seed use
efficiency.
Seed planners should take these
variables and uncertainties into account when determining seedling and seed
needs to the greatest extent possible. Be as specific as possible about the
variables used to calculate seed needs, as doing so will provide more realistic
results.
Checklist for the Seed Planner
A. Determine needs
- Determine the
regeneration obligation for which you are planning seed - harvest areas only,
or harvest plus natural disturbance?
- Determine an appropriate
timeframe. It is recommended that persons retain at least a 3- to 5-year
seed supply for their operating areas. A timeframe of 3 years is optimal
for A-Class seed when you have a seed supply agreement with the orchard,
whereas 20 years is not uncommon, especially when accounting for severe forest
disturbances.
- Determine the areas
(forest development units) within which harvesting and planting operations
will be carried out for the duration of your planning timeframe.
- Identify the seed
planning zones (SPZs), seed planning units (SPUs) and biogeoclimatic zones
(BEC) your forest development units fall within.
-
Calculate the probable
net area (ha) to reforest by planting.
- Determine the desired
species mix(es) for planting, and calculate total estimated seedling needs
(density of tree planting per hectare x hectares for each species).
- Review recent seed use
for given operating areas and compare to estimated future seedling needs.
Confirm that anomalies are rationalized or adjust estimates for future
needs.
B. Determine seed supply
-
Identify the existing
seed inventory of select and natural stand seedlots.
Note: You will need
either a BCeID or an IDIR (government) account to access SPAR (http://www.for.gov.bc.ca/hti/spar/spar_access.htm)
An example of a lot
search by owner agency and SPZ appears in Figure 1 below (note - the example
shows part of a page).
_files/image001.jpg)
Figure 1.
Lot search by owner agency and
seed planning zone.
C. Acquire required seed
supply
-
Short term seed needs may
be met by searching SPAR for available seed. If your organization does not
own seed or cannot meet its own seed needs then you can search SPAR inventories
by species and SPZ for surplus seed and arrange to purchase existing surplus
seedlots. If a suitable seedlot is identified but not available as surplus,
the owner may be willing to sell a portion of the lot for your use.
- Determine the potential
select seed production from orchards by species and seed planning unit. Consult
the Forest Genetics Council's tree species plans, located on the TIB website
at http://www.for.gov.bc.ca/hti/speciesplan/index.htm.
Where seed orchard production is providing all the seed needed for a seed
planning unit, or is expected to meet the total seed need within a few years,
it is advisable to check with the orchard owner(s) to determine availability.
It is not advisable to collect large amounts natural stand seed when orchards
are projected to meet needs within the SPU, as the Chief Forester's Standards
for Seed Use require the use of select seed with a Genetic Worth of
5 or more to be used when available. Large natural stand collections
will be redundant if orchard seed meeting CF Standards for Seed Use requirements
comes available.
Species plans provide
guidance on:
- Seed orchard production
estimates by seed planning unit, and
- Current and anticipated
genetic gain by seed planning unit.
An example of a species
plan for the Interior Douglas-fir Nelson low seed planning unit is shown in
figure 2 below:
Figure 2. Seed
orchard production forecast
- If an orchard is shown to
be producing for your target area, check with the orchard seed owner/contact
to determine the status and availability of seed.
-
Where existing seed
inventories do not meet present or future seed needs, a natural stand cone
collection should be considered. Cone crops are not plentiful each year. Cone
crop assessments for seed quality and quantity should be conducted prior to a
decision to collect cones. Work with an experienced cone collector; cooperate
with other licensees operating in the area to optimize seed collection costs.
- The following links
provide some direction on how to complete a conifer cone collection
-
Seedlots need to be
registered as per the CF Standards for Seed Use and tested at the Tree Seed
Centre prior to use. Seedlots can be registered on-line using the SPAR application.
- After determining seed
needs and determining your seed procurement, set a budget. Guidelines for
seed prices are located in the cone and seed fee schedule found at http://www.for.gov.bc.ca/HTI/treeseedcentre/tsc/fees.htm.
- Remember to review your
seed needs and the seed inventories annually. Seed inventory and its
classification, reserved and available, changes frequently throughout each year
with registration of crops, deployment of seed, new parent-tree information,
and surplus declarations.
Lastly, remember that your seed
planning and eventual seed deployment must meet with the Chief
Forester's
Standards for Seed Use.
There are several training tools for
instruction on the CF Standards available on the web at http://www.for.gov.bc.ca/code/cfstandards/InstructionalMaterials/.
For
further information on seed planning, please contact one of the following
persons:
Lee
Charleson
Seed Policy Officer, Tree Improvement Branch
Ministry of Forests and Range
ph (250) 387-4839
Lee.Charleson@gov.bc.ca
Matt LeRoy
Decision Support Analyst, Tree Improvement Branch
Ministry of Forests and Range
Ph (250) 387-4836
matt.leroy@gov.bc.ca
Leslie McAuley
Decision Support Officer, Tree Improvement Branch
Ministry of Forests and Range
Ph (250) 356-6208
Leslie.McAuley@gov.bc.ca
Definitions and Acronyms
| BCEID |
BCeID (BC electronic identification) is an online service that provides
logon identification and passwords that make it possible for you to use
to sign in securely to any BCeID participating British Columbia Government
web site (http://www.for.gov.bc.ca/hva/rh/ecas/Definitions/BCeID.htm) |
| BEC |
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| Chief Forester’s Standards For Seed Use |
Standards created to maintain the identity, adaptability,
diversity and productivity of the Province’s tree gene resources
by
a) establishing criteria for the registration
of seedlots and vegetative lots used to establish a stand under section
29 of the Act, and b) regulating the storage, selection,
use and transfer of registered lots http://www.for.gov.bc.ca/code/cfstandards/html/3_purpose.htm |
| Class A seed |
Used interchangeably with Orchard seed. Seed collected from
a tree seed orchard |
| Class B seed |
Used interchangeably with Natural stand seed. Seed collected from a natural
stand |
| Class B+ seed |
Seed collected from natural stands identified as superior
provenances |
| Collection area |
An area within a natural stand from which seeds or vegetative
materials are
collected for the purpose of producing a lot (see CF Standards for Seed
Use
requirements). |
| Forest development
unit |
An area
identified in a forest stewardship plan where forest development may occur
during the term of the plan, and within which, during the term of the plan,
timber to be harvested or roads to be constructed are entirely located. (MOF
glossary) |
| FRPA |
Forest and Range Practices Act http://www.for.gov.bc.ca/code/legislation.htm |
| Genetic worth (GW) |
A
measure of the genetically-based gain in a seedlot relative to average natural
stand seed for a specific trait (usually growth rate measured as volume per
hectare at a reference rotation age). Sometimes GW is reported for pest or
disease resistance, or for wood quality attributes. |
| Hectolitre (Hl) |
A
volume measurement of 100 litres |
| Natural stand |
Stand of trees that was established through natural regeneration |
| Natural stand seed |
Used
interchangeably with Class B seed. Seed collected from a natural stand |
| Orchard seed |
Used
interchangeably with Class A seed. Seed collected from a tree seed orchard |
| Potential seedlings |
The
potential amount of trees that can be produced from an amount of grams of seed
or cuttings. For seed, the potential amount of trees is based upon the
germination capacity and 2007 sowing rules |
| SeedMap |
Spatial
mapping tool used for seed planning; |
| Seed Planning Unit (SPU) |
An organizational unit that forms the basis
for breeding and seed production planning. SPUs are organized by species, seed
planning zone, and elevation band and are designed to facilitate program
development and strategic planning for tree improvement |
| Seed Planning Zone (SPZ) |
A natural
stand seed planning zone as identified in Table 2.1 of Appendix 2 or a tested
parent tree seed planning zone as identified in Table 2.2 of Appendix 2 of the
Chief Forester's Standards for Seed Use |
| Select seed |
Includes
all seed with a genetic worth, or level of genetic improvement, including
superior provenance (B+) and orchard (A) seed. |
| SPAR |
Seed Planning and Registry
System: An information system maintained by the Tree Improvement
Branch to record information respecting lots |
| Species plans |
Defined
by the Forest Genetics Council (FGC) as presenting information for seed
planning units with active or planned breeding programs, seed orchards or
genecology work.Information presented includes breeding strategy (where
applicable), seed orchard production forecasts, gain forecasts, historic seed
use, seed in storage, genetic conservation status, and genecology/seed transfer
projects. The plans are organized by species and updated annually (see FGC
business plan). |
| Transfer limits |
The
suitable deployment area for a seedlot as identified in the Chief Forester's
Standards for Seed Use (Part 8 and associated appendices). |
| TIB |
Tree
Improvement Branch, BC Ministry of Forests and Range |
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