Cultivation

🔊 par

Abbreviation for Photosynthetically Active Radiation, the light wavelengths between 400 and 700 nanometers that plants use for photosynthesis.

🔊 par MEE·ter

A device that measures the intensity of photosynthetically active light reaching the plant canopy in a grow space.

🔊 PAIR·ee·anth

The outermost part of the cannabis flower, primarily consisting of the calyx that surrounds and protects the reproductive structures.

🔊 pest

Any insect, mite, or organism that damages cannabis plants by feeding on leaves, stems, roots, or flowers.

🔊 PES·tih·syd

A chemical or biological agent used to prevent or control pests that can damage cannabis plants during cultivation.

🔊 pee·jee·ar

Abbreviation for Plant Growth Regulator, synthetic or natural substances that alter cannabis plant growth and development.

🔊 FEE·noh hunt

The process of growing multiple plants from the same seed stock to identify and select the most desirable individual phenotype.

🔊 FEE·noh·type

The observable physical traits of a cannabis plant that result from the interaction between its genetics and its environment.

🔊 foh·toh·sin·THET·ik FOH·ton fluks DEN·sih·tee

The measurement of photosynthetically active light reaching a specific area of the plant canopy per second.

🔊 foh·toh·sin·THET·ik·lee AK·tiv ray·dee·AY·shun

The range of light wavelengths between 400 and 700 nanometers that plants can use for photosynthesis.

🔊 FIL·oh·tak·see

The arrangement pattern of leaves on a cannabis stem, which affects light absorption and plant structure.

🔊 PINCH·ing

A technique of squeezing or damaging a cannabis stem without breaking it to encourage bushier growth and more flower sites.

🔊 PIN·ayt

A leaf structure with a central main vein and smaller veins branching off in a feather-like pattern.

🔊 PIN·ayt PAL·mayt

A hybrid leaf venation pattern showing characteristics of both pinnate feather-like and palmate hand-like vein arrangements.

🔊 PIS·til

The female reproductive part of the cannabis flower, made up of the stigma, style, and ovary.

🔊 plant grohth REG·yoo·lay·ter

Synthetic or natural substances used to alter cannabis plant growth, including branching, flower size, and root development.

🔊 pee·em

Short for Powdery Mildew, a common fungal disease appearing as a white powder on cannabis leaves and stems.

🔊 POL·en sak

The male reproductive organ of a cannabis plant that produces and releases pollen for breeding.

🔊 POP·korn

Small, underdeveloped cannabis flowers from lower branches that receive insufficient light to grow into full-sized buds.

🔊 POW·der·ee MIL·dyoo

A fungal disease that covers cannabis plants with a white powder-like coating, thriving in high humidity with poor airflow.

🔊 pee·pee·bee

Abbreviation for Parts Per Billion, used to measure ultra-trace levels of contaminants in cannabis testing.

🔊 pee·pee·ef

Abbreviation for Photosynthetic Photon Flux, measuring the total light output emitted by a grow light per second.

🔊 pee·pee·ef·dee

Abbreviation for Photosynthetic Photon Flux Density, measuring how much photosynthetically active light reaches a specific area of the plant canopy.

🔊 pee·pee·em

Abbreviation for Parts Per Million, used to measure nutrient solution concentration or contaminant levels in cannabis.