How To Germinate Cannabis Seeds
Seeds Are Dormant
Seeds are natures way for offspring to wait for ideal conditions to take place before initiating the growing cycle.
Cannabis seeds typically have only 9% moisture (if typically sun drying is practiced) or as low as 5% while dormant with minimal respiration
Germination Process of a Seed
Absorption of water stimulates germination
Embryo synthesizes gibberellin (plant hormone) in response to water uptake
Aleurone (protein) layer synthesizes amylase (enzyme) in response to gibberellin
Amylase mobilizes energy reserves: hydrolyses starch to maltose. Maltose is converted to glucose and respired to release ATP (energy)
Consistency is Important
Once the environmental condition ranges are determined, it is critical that they are maintained for the duration of the germination process.
Quality Seeds
This is the start to any chance at a good germination/emergence
Getting seeds from a source that also provides a COA (Certificate of Authenticity) can be well worth it
Temperature: 78⁰F-82⁰F (25⁰C-28⁰C)
90⁰+F (or 32⁰+C) will kill the seeds
Moisture Level: 90% Relative Humidity
90% Relative Humidity
Air: 10%
Remember seeds need to respire and take in oxygen
There should be some air pockets (no matter the substrate used) to prevent the seeds from downing.
Light: 150-300 PPFD/PAR
PPFD = Photosynthetic Photon Flux Density
PAR = Photosynthetic Active Radiation
While not needed for the germination process, it is a good idea to have a light source over the plants so upon emergence the seedling can immediately start photosynthesizing
Keep the light diffused to avoid burning newly emerged seedlings
Cannabis Seed Germination Summary
Start with quality seeds that have a COA
Temperature: 78⁰F-82⁰F (25⁰C-28⁰C)
Moisture Level: 90% Relative Humidity
Air: 10%
Planting Depth: 1/8” to ¼” (3mm-6mm) deep
Light: 150-300 PPFD/PAR
Water: Filtered
How Long Will It Take?
Germination is typically in 2-7 days
Emergence is to be expected to be in 3-10 days
*Quality seeds in consistent conditions in the stated range will fall in the lower end of the expected rage.
Rockwool
Pro: favorable for seed germination
Con: disposal can be an issue
Soilless Medium
Pro: easy to get
Con: can be messy
Direct Seeding
Pro: No need to transplant
Con: Needs specialized equipment
Which growing substrate would you select?
Link to Lecture Slides: [ Ссылка ]
420 Magazine Source Content by Slide Title:
Seeds are Dormant
[ Ссылка ]
Consistency is Important
[ Ссылка ]
[ Ссылка ]
Quality Seeds
[ Ссылка ]
[ Ссылка ]
Moisture level
[ Ссылка ]
[ Ссылка ]
Planting Depth
[ Ссылка ]
[ Ссылка ]
Light
[ Ссылка ]
Seed Soaking
[ Ссылка ]
[ Ссылка ]
Plain Water or Treated
[ Ссылка ]
[ Ссылка ]
Summary
[ Ссылка ]
Do Not
[ Ссылка ]
[ Ссылка ]
[ Ссылка ]
Video
How Long Will it Take?
[ Ссылка ]
[ Ссылка ]
[ Ссылка ]
Where will you germinate your seeds?
[ Ссылка ]
[ Ссылка ]
*Due to the description character limit the full work cited for "How To Germinate Cannabis Seeds" can be viewed at... [ Ссылка ]
