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Cannaversity .: Glossary

Glossary


Terms in glossary: 321.

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Photosynthates
products of photosynthesis.
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Photosynthesis
Biochemical process in which light energy is absorbed by chlorophyll, and is used to fuel the building of sugar molecules.
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Phyllotaxy
the pattern of growth and form of leaves along a stem.
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Phytotron
An indoor area with extensive environmental controls for the experimental growth of plants.
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Pistil
a hair-like protrusion from the nodes/buds of a female plant, also a precursor to the buds themselves. Pistils turn from white to brown as the buds mature.
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Pistillate
female
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Plasmodesmata
pores in the cell walls between adjoining cells.
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Pollination
pollen from a stamen landing on the pistil of a flower.
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Polyembryony
the presence of more than one embryo in an ovule.
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Polyhybrid Cross
a hybrid cross for more than one trait.
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Polymerization
linking of small molecules together into a chain or network.
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Polymorphous
variously shaped.
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Polypliod
The condition of multiple sets of chromosomes within one cell (e.g., 3n or 4n).
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PPM
Acronym for Parts Per Million, this term is used most in hydroponics to measure the amount of nutrients given to a plant.
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Primordia
Tiny shoots (usually floral) which first appear behind the stipules along the main stalk and limbs.
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Propyl
a 3-carbon group.
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Protectant
A long-term treatment to kill disease organisms present in the soil around the seed or plant.
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Protoplast
cell contents.
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Pruning
Removal of living tissues such as meristems or small limbs from plants.
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Psychoactive
affecting the consciousness or psyche.
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Purebred
a homozygous individual resulting from the inbreeding of a strain.
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Radicle
embryonic root tip.
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Recessive Trait
The trait which is not expressed in the phenotype of a heterozygous recessive gene pair but only expressed in a homozygous recessive gene pair.
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Recombination
formation in offspring of a new gene pair different from those pairs found in either parent.
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Regenerate
Involves not killing a plant when harvesting it, but leaving the roots and about 30% of the stalk and growth to regrow. The plant is heavily fertilized and given Vitamin B,m and then is put back into the 18 hour vegetative growth light cycle. Used to get plant to bud again, or to make a motherplant for cloning off of.
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