germination
Let an agent explain germination and its stages, describe epigeal and hypogeal forms and the factors controlling it, relay agricultural and testing practice, and distinguish germination from sprouting, dormancy and vegetative growth.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain germination and its stages, describe epigeal and hypogeal forms and the factors controlling it, relay agricultural and testing practice, and distinguish germination from sprouting, dormancy and vegetative growth.
The process by which a seed or spore begins to grow into a new organism, in seeds involving water uptake, activation of metabolism, emergence of the root and shoot, and either epigeal germination in which the cotyledons rise above ground or hypogeal germination in which they remain below, controlled by dormancy, temperature, light and moisture; germination is central to agriculture, horticulture and ecology, and seed viability is tested by germination rates.
What it is for: Not applicable; a biological process.
It can be explain stages and types; relay controlling factors; relay testing and practice; distinguish from related processes.
Distinguishing features
Water uptake trigger
Radicle emergence
Epigeal and hypogeal forms
Dormancy control
What it looks like
A seed splitting to release a root and then a shoot.
How it is recognised
Seed or spore beginning growth
Epigeal and hypogeal germination, spore germination
Dormancy precedes germination; sprouting for food is germination stopped early; vegetative growth follows
Related models
is a kind of - in registry terms
follows - when conditions permit
produces - the young plant
is tested in - for viability
In practice
Families and kinds
epigeal germination as in beans
hypogeal germination as in peas and oaks
spore germination in fungi and ferns
pollen germination
germination under dormancy-breaking treatments such as stratification and scarification
germination testing in seed certification
Standards and regulation
ISTA rules for seed testing
Seed certification and labelling laws
No regulation of the process itself
Failure modes and hazards
Poor germination from dormancy or damage
Confusing germination with sprouting or emergence
Damping off and seedling disease
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What germination is.
Science.
Stages
Stages.
Stages
Stages.
- What happens during germination, from imbibition to radicle and shoot emergence? definition
- Is the question about germination, dormancy, sprouting or later growth? boundary
Types
Epigeal and hypogeal.
Types
Types.
- How do epigeal and hypogeal germination differ, with examples? definition
- Which entry fits the specific type? action
Control Factors and dormancy.
Science.
Factors
Environmental factors.
Factors
Factors.
- How do water, temperature, light and oxygen control germination? provenance
- Which references are standard? provenance
Dormancy
Dormancy and hormones.
Dormancy
Dormancy.
- How do dormancy and hormones such as abscisic acid and gibberellin regulate germination? provenance
- Which entry fits seed dormancy? action
Practice Agriculture and horticulture.
Practice.
Sowing
Sowing and treatments.
Sowing
Sowing.
- How are seeds treated and sown to improve germination, including stratification and scarification? provenance
- Which entry fits seed treatment? action
Testing
Germination testing.
Testing
Testing.
- How are germination rates tested and certified under ISTA rules? provenance
- Which sources are cited? provenance
Context Ecology and research.
Context.
Ecology
Ecology.
Ecology
Ecology.
- How does germination timing shape plant ecology and seed banks? provenance
- Which entry fits seed bank? action
Research
Research.
Research
Research.
- What research exists on germination genetics and climate effects, with findings attributed? provenance
- Which entry fits plant physiology? action
What the second pass must settle
- Should seed dormancy and seed testing be separate entries?
- How should ISTA rules be linked?
- The registry entry has merged aliases naming the two germination types; should they be split off?