All terms list

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Ω #
PAR (Photosynthetically Active Radiation)
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6
A–Z Cannabis Cultivation Encyclopedia
The light spectrum plants use for photosynthesis.
Peak Concentration (Tmax & Cmax)
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18
A–Z Cannabis Cultivation Encyclopedia
Time and level at which blood cannabinoid concentration reaches its maximum after dosing.
Perlite Mix
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12
A–Z Cannabis Cultivation Encyclopedia
Inert, porous mineral used alone or blended in rooting mixes to improve aeration.
pH level
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11
A–Z Cannabis Cultivation Encyclopedia
pH measures the acidity or alkalinity of a growing medium or nutrient solution.
Pharmacodynamics (PD)
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12
A–Z Cannabis Cultivation Encyclopedia
What cannabinoids do to the body.
Pharmacokinetics (PK)
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12
A–Z Cannabis Cultivation Encyclopedia
How the body handles cannabinoids over time.
Photoperiod
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15
A–Z Cannabis Cultivation Encyclopedia
Photoperiod is the daily duration of light and darkness that influences cannabis growth.
Photosynthetic Photon Efficacy (PPE)
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10
A–Z Cannabis Cultivation Encyclopedia
The efficiency of a light source in converting electricity to usable light.
Phytochrome
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11
A–Z Cannabis Cultivation Encyclopedia
Light-sensitive plant proteins that detect day length
Pinene (α/β)
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11
A–Z Cannabis Cultivation Encyclopedia
Pine-scented terpenes tied to alertness.
Pipe
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10
A–Z Cannabis Cultivation Encyclopedia
Handheld device for combusting and inhaling cannabis flower or concentrates.
Pollen Chucker
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12
A–Z Cannabis Cultivation Encyclopedia
A pollen chucker is a breeder who makes random or careless crosses.
Potassium
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13
A–Z Cannabis Cultivation Encyclopedia
Potassium is an essential macronutrient that regulates plant metabolism and stress tolerance.
PPF (Photosynthetic Photon Flux)
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11
A–Z Cannabis Cultivation Encyclopedia
The total amount of usable light emitted by a light source.
PPFD (Photosynthetic Photon Flux Density)
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16
A–Z Cannabis Cultivation Encyclopedia
The amount of usable light a plant receives per second.
Propagation
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84
A–Z Cannabis Cultivation Encyclopedia
Propagation is the process of starting new cannabis plants from seeds or clones.
Pruning
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12
A–Z Cannabis Cultivation Encyclopedia
Pruning removes specific plant parts to improve growth, airflow, and yield.
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