back to fact
back to frsa
SEED ANALYSIS FACT SHEET:
A LABEL SHOULD CONTAIN THE FOLLOWING INFORMATION:
1. Name and address of seller (labeler).
2. Kind and variety (or variety not stated) of seed being sold.
3. Lot number or other lot identification.
4. Purity analysis in percentages: Pure seed %, Other Crop seed %,
Weed seed %, Inert matter %. For mixtures the percentage of each component
over 5% of the whole must be listed, and preferably all those under 5% listed
by order of predominance by descending order. The total of these four
(4) components must equal 100%
5. Noxious weed seed: “None Found” or a listing of restricted
noxious weed seeds, if present, for the state where the seed is being sold
or offered for sale. Colorado requires the label to show each kind
of restricted noxious-weed seed present by name and number per pound.
6. Germination analysis in percentages: Germination %, Dormant %,
Hard seed %, and TVS %.
7. Date of germination test.
9. Seed treatments.
10. Other information: Disclaimers, Limited Warranties, etc.
SAMPLE GENERIC LABEL:
(1) XYZ Seed Company, 1000 Crop
Seed Lane, Ft. Collins, CO
(2) Alfalfa, VNS
(3) Lot number: 1234
(4) Pure Seed:
(7) Date Tested: 10/2000
(8) Origin: CO
(5) Noxious weed seed: dodder
1 per lb. (9) Seed Treatment: none
DEFINITIONS FOR UNDERSTANDING THE SEED LABEL:
NAME AND ADDRESS: The full name and address of the person labeling, selling,
offering or transporting the seeds for sale shall appear upon the label (or
the code designation used in lieu of the full name and address shall appear
on the label in a clear and legible manner.)
KIND: The commonly accepted name of the kind or cultivar of seed to be considered
pure seed, for example, wheat, oats, alfalfa, etc., and if seeds are mixed,
the kind or cultivar of each seed making up five percent (5%) or more of
the mixture shall be stated separately.
VARIETY: The variety name shall represent a subdivision of a kind, which
is characterized by growth, plant, fruit, seed, or other characteristic by
which it can be differentiated from other sorts of the same kind, for example,
Ranger alfalfa, Oahe intermediate wheatgrass, Monida oat, Othello pinto bean,
Buckskin winter wheat, etc. The label shall show the variety name or the
words VARIETY NOT STATED (VNS).
PURE SEED: Pure seed shall include seeds of each kind and/or cultivar,
or kind(s) and variety, under consideration, which are present in excess
of 5% of the whole. The label shall show the percentage by weight of
OTHER CROP SEED: Seeds of plants grown as crops (other than the kind(s) and/or
cultivar(s) included in the pure seed) shall be considered other crop seeds,
unless recognized as weed seeds by law, regulation, or by general usage.
The label shall show the percentage by weight of other crop seed and shall
include collectively all kinds, varieties, or types not named upon the label.
WEED SEED: Seeds, florets, bulblets, tubers or sporocarps of plants recognized
as weeds by law, official regulation, or by general usage. The label
shall show the percentage by weight of weed seeds.
INERT MATTER: Inert matter shall include seeds and seedlike structures from
both crop and weed plants and other materials not included in pure seed,
other crop seed, or weed seed. The label shall show the percentage
by weight of inert matter.
GERMINATION (percentage): The maximum plant producing potential of a seed
lot (i.e. the capability to germinate and produce a normal seedling under
DORMANT SEED (percentage): Viable seeds which fail to germinate when provided
the specified germination conditions for the kind of seed in question.
Dormant seeds have imbibed water and are swollen in size but have not germinated
by the end of the test period. Many grasses and native species are known
to have varying types and amounts of dormancy.
HARD SEED (percentage): Seeds that remain hard at the end of the prescribed
test period because they have not absorbed water due to an impermeable seed
coat. Hard seeds look just as they did when planted with no increase
in size since they have not imbibed water. Certain families of seed
species have hard seed. Legumes are best known for hard seeds.
The label shall show the percentage of hard seed, if any is present, for
any seed required to be labeled as to the percentage of germination and the
percentage of hard seed. The Hard Seed Percentage shall not be included
as part of the Germination Percentage.
TOTAL VIABLE SEED (TVS): Percentage estimate of the ultimate potential for
germination. This is achieved by adding the percent germination and
the percent hard seed or dormant seed.
Example for alfalfa: 92% germination + 5% hard seed = 97% TVS
Example for grasses: 90% germination + 7% dormant seed
= 97% TVS
Both dormant and hard seed are types of dormancy, but they are
physiologically quite different and should be distinguished from
on the seed tag.
PURE LIVE SEED (PLS): The percentage of seed in a seed lot that is both pure
seed and viable (TVS).
PLS = Pure seed (%) x TVS (%)
DATE OF TEST: The label shall show the month and year in which the germination
test was completed.
INOCULATED SEED: Seed that has received a coating of a commercial preparation
containing a microbial product.
TREATED SEED: Seed with a minimal covering of various materials whose primary
objective is to reduce or control certain disease organisms, insects or other
pests attacking the seed or seedlings growing therefrom and which contains
identifying colorants or dyes.
back to top