Medical Marijuana Glossary


Medical Marijuana Glossary

Browse the glossary using this index

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 | ALL

D

Damping-Off

fungus disease that attacks young seedlings and clones causing stem to rot at base: Over-watering is the main cause of damping-off

Decompose

to rot or decay, etc., through organic chemical change

Dehumidify

to remove moisture from the air

Dehydrate

to remove water from foliage

Deplete

to exhaust soil of nutrients, making it infertile: Once a soil is used to grow a container crop, it is depleted

Desiccate

to cause to dry up: Insecticidal soap desiccates its victims

Detergent

liquid soap concentrate used: 1. as a wetting agent for sprays and water 2. pesticide, Note: detergent must be totally organic to be safe for plants

Diapause

a period of plant dormancy during which growth or development is suspended or diminished 

Dioecious

a population consisting of gynoecious and androecious plants

Dioecy

a condition where separate sexes occur on separate individuals; each plant displays a single gender

Direct Current (DC)

a continuous electric current that only flows in one direction

Disease

sickness of any kind

Dose

amount of fertilizer, insecticide, etc., given to a plant, usually in a water solution

Double Potting

a two-pot transplanting technique that minimizes root disturbances

Drainage

to empty soil of excess water - Good drainage: water passes through soil, evenly promoting plant growth and Bad drainage: water stands in soil, actually drowning roots

Drip (Irrigation) System

efficient watering system that employs a main hose with small water emitters (tiny holes) which meter out water one drip a time at regular, frequent intervals

Drip Line

a line around a plant directly under its outermost branch tips: Roots seldom grow beyond the drip line

Dry Ice

cold, white solid substance formed when CO2 is compressed and cooled: Dry ice changes into CO2 gas at room temperatures

Dry Soil Pocket

small portion of soil that remains dry after watering: Dry soil pockets may be remedied by adding a wetting agent (soap) to water and/or waiting 15 minutes between watering

Dry Well

drain hole filled with rocks, to receive drainage water