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#1
09-04-2005, 11:13 AM
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Cannabis Related Terms & definitions (advanced fyi)
Here are some cannabis related terms/definitions, so to better help us understand each other, and the common language we speak.
A ABA- abscisic acid Abaxial- oriented away from the stem meristem; lower surface Accessory Cannabinoids- cannabinoids (CBC, CBD, CBN) which probably interact with the primary cannabinoids (THC) to alter their effect Accessory Pigment- pigment other then the primary pigment (clorophll) which collects solar energy Acclimatize- become adapt to new enviromental conditions Achene- a hard-shelled seed encased by a simple thin closed shell Adaxial- oriented toward the shoot meristem Adnate- attached at the margin Adventitous Roots- roots that appear spontaneously from stems and old roots Alternate Phyllotaxy- leaves appear singly in a loose staggered spiral along the stem Aneuploid- an organism with an unbalanced set of chromosomes (i.e., 2n-1 or 2n+1) Anthesis- the time of maturation of a flower Anthocyanin Pigment- an accessory pigment, usually red or purple Anticlinal- perpendicular to the surface Apical- tip or top position Arborescent- tree-like Asexual Propagation- vegetative reproduction by cloning, producing offspring with the genotype identical to that of the single parent Auxins- a class of plant hormones B Back-crossing- crossing of an offspring with one of the parents to reinforce a parental trait Bract- small reduced leaflet in Cannabis that appears below a pair of calyxes Bulbous Trichome- small stalkless glandular trichome C Callus- undifferentiated group of cells, which under proper conditions will differentiate to produce roots and stems Calyx- five-part carpel structure of the staminate flower; or, five-part fused tubular sheath surrounding the ovule and pistils of the pistillate flower Cambium- layer of cells which divides and differentiates into xylem and phloem Cannabaceae- family to which only Cannabis (marijuana) and Humulus (hops) belong Cannabinoid- cyclic hydrocarbon which is found only in Cannabis, derived from a terpene molecule and a cyclic acid molecule Cannabinoid Profile- ratio and levels of major cannabinoids found in a particular individual or strain of Cannabis Cannabis- genus name of marijuana or hemp Capitate-sessile Trichome- resin-producing glandular trichome with a stalk Capitate-stalked Trichome- resin-producing glandular trichome without a stalk "Captan"- a commercial fungicide Carotenoid Pigment- an accessory pigment, usually yellow, orange, red or brown Carrier- a plant infected with a virus but exhibiting no symptoms due to its high resistance CBC- cannabichromene CBD- cannabidiol CBDV- cannabidiverol CBG- cannabigerol CBN-cannabinol CBNV- cannabiverol CBT- cannabitriol CCY- cannabicyclol Cellular Cloning- asexual propagation of new individuals from small groups of single cells, as distinct from layers or cuttings Centripetally- outward from the center Cerebral- pertaining to the mind or head, mental Chemotype- a specific chemical phenotype which in Cannabis is usually based on ratios of cannabinoids Chemovars- cultivars or races of Cannabis defined by their particular chemical composition Chlorosis- yellowing of plant tissues resulting from the breakdown of chlorophyll Chromosome- strain of DNA-protein complex in the nucleus of a cell along which genes are found Clone- an asexually produced offspring preserving parental genotype Colchicine- a dangerous chemical used to induce polyploid mutations in plants Cotyledons- seed leaves which are present in the embryo and first appear upon germination Critical Daylenght- maximum daylenght which will induce flowering Crossing- mating of two organisms Crossing Over- switching entire pieces of genetic material between two chromosomes Crystaloids- crystalline globules in the cytoplasm Cultivar- a variety of plant found only in commercial cultivation Cuticle- covering of plant wax on the surface of the epidermis Cuttage- rooting a piece of stem (cutting) removed from a parent plant Cytokinins- a class of plant growth substances (hormones) D Dagga- African Cannabis Damping-off soil-borne fungus disease which attacks seedlings and young plants Decarboxylation- loss of a carboxyl (COOH) group from a molecule Decussate Phyllotaxy- leaves appear in opposite pairs along the stem Dehiscence- release of pollen from the stamens upon opening of the staminate flower Differentiation- (1) process of mixing heterozygous gene pools by crossing to promote variation in the offspring. (2) development by a plant of specialized tissues, e.g., roots, calyxes, pistils Dihybrid Cross- a hybrid cross for two traits Dioecious- staminate and pistillate organs develop on separate plants Diploid- the 2n or vegetative condition where each cell has the usual two sets of homologous chromosomes( in Cannabis 2n=20) Disinfectant- a treatment that kills disease organisms on the exterior of the seed or plant Distal- oriented away from Domesticated- cultvated or spontaneously appearing in a cultivated area Dominant Trait- the trait which is expressed in the phenotype of a heterozygous gene pair, indicated by a capital letter, i.e., "W" is dominant; "w" is recessive Drip Irrigation- irrigation system which delivers water to individual plants in small amounts at regular, frequent intervals E Ecosystem- community of organisms living interdependently in the physical environment Ecotype- a strain of plant adapted to a specific niche in the ecosystem Embolism- bubble of air in the transpiration stream of a cutting Endosperm- nutrient tissue contained within the seed Endothecium- subepidermail layer of the pollen sack wall Endozoic- internal Epicotyl- stem between the cotyledons and the first pair of true leaves Epidermal Layer- outer layer of plant tissue Epigamic- not controlled by genes Epinasty- downward curling of cotyledons and leaves at night Essential Oils- compounds with strong aromas contained in the secreted resins of plants Etiolation- growth of a plant in total darkness to increase the chances of root initiation F F1 Generation- first filial generation, the offspring of two P1 (parent) plants F2 Generation- second filial generation, resulting from a cross between two F1 plants F1 hybrid- heterozygous first filial generation Fertilization- the union of genetic material from the pollen (1n) with genetic material from the ovule (1n), restoring the dipliod condition (2n) Fixed Trait- a homozygous trait Floral Cluster- group of flowers G GA3- gibberellic acid Gamete- haploid (1n) sex cell of the ovule or pollen, capable of initiating the formation of a new individual by combining with another gamete of the opposite sex Ganja- Indian word for marijuana derived from pistillate floral clusters of Cannabis Gene- element of the germ plasm controlling the transmission of a hereditary characteristic Gene Interaction- the control of a trait by two or more genes Gene Linkage- transfer of gene pairs for separate traits together in associated groups instead of assorting independently Gene Pool- collection of possible gene combinations Genotype- combination of genes present on chromosomes in the nucleus of each cell, which through environmental influences determines the outwardly observable phenotype Germ Plasm- genetic material contained within seeds or pollen Gibberellin- a class of plant growth hormone Girdling- removing a strip of bark or crushing the stem of a plant to restrict the flow of water, nutrients, and plant products Glandular Trichome- plant hair which has a secretory function GLS- gas-liquid chromatography Globoids- drops of oil or resin in the cytoplasm Gootee- ancient Chinese air layering technique Greenhouse- a structure which offers some environmental control to promote plant growth Gross Morphology- general growth form of an organism Gross Phenotype- composite phenotype of an organism H Haploid- condition, as in gametes, when each cell has one-half the usual number of chromosomes found in vegetative cells; abbreviated 1n (in Cannabis 1n=10) Hardening-off slow adaptation of indoor or greenhouse plants to an outside environment Hashish- a drug formed of resin heads of glandular trichomes shaken or rubbed from floral clusters, pressed together, and shaped Heliotropic- sun-loving, turning toward the sun Hemp- Cannabis fibers or fiber-producing type of Cannabis Herbivory- feeding on plants by animals Hermaphrodite- an individual from a dioecious strain of predominantly one sex which develops floral organs of the other sex Heteroblastic- variously shaped Heterozygous- the condition when the two genes for a trait are not the same on each member of a pair of homologous chromosomes; individuals heterozygous for a trait are indicated by an "Aa" or "aA" notation and are not true-breeding Homologous Chromosomes- members of the same chromosome pair Homologs- similarly structured chemical compounds Homozygous- the condition existing when the genes for a trait are the same on both chromosomes of a homologous pair; individuals homozygous for a trait are indicated by "AA" or "aa" and are true-breeding Hormone- plant hormones or growth substances are chemicals produced by the plants in very small quantities which control the growth and development of the plant five or more classes of hormones are recognized and they appear to interact in almost all phases of development Hybrid- a heterozygous individual resulting from crossing two separate strains Hybrid Vigor- increased vigor in the offspring resulting from the hybridization of two gene pools Hybridization- process of mixing differing gene pools by crossing to produce offspring of combined parental characteristics Hypocotyl- section of stem arising from the embryo below the cotyledons Hypodermal Layer- middle layer of plant tissue I Incomplete Dominance- neither gene of a pair is dominant Indexing- detecting of a virus carrier by grafting tissues or injecting vascular fluids into an uninfected clone Inductive Photoperiod- daylength required to induce flowering Inflorescence- group of flowers Intrusive Growth- growth through a medium Isodiametric- having equal diameters K Kif- Moroccan word for Hashish and Cannabis L Laticifer- secretory organ containing latex Layerage- development of roots on a stem (layer) while it is still attached to and supported nutritionally by the parent plant Leach- wash from the soil Leafing- removal of leaves Lignification- hardening of the stem by the formation of lignin, a tough polymer Limbing- removal of lower limbs Lipophilic- a chemical environment in which fat-like components are easily soluble Lumina- inner cell spaces enclosed by the cell walls M Manicuring- removing leaves from floral clusters Marijuana- Cannabis, originally a Spanish word Megaspore- seed Meiosis- reduction division of a diploid (2n) cell resulting in two haploid (1n) daughter cells as in pollen and ovule formation Meristem- area of a cell division and growth, i.e., shoot tip, root tip, and cambium Meristem Pruning- removal of shoot tip to limit height and promote branching Methyl- a 1-carbon group Micron- one-millionth of a meter Microspore- pollen Mil- one-thousandth of an inch Mitosis- division of a diploid (2n) cell resulting in two diploid (2n) daughter cells as in normal vegetative growth Monoecious- staminate and pistillate organs develop on the same plant Monohybrid Cross- a hybrid cross for only one trait Mutation- an inheritable change in a gene N Necrosis- death and discoloration of tissue Nitrification- conversion by soil organisms of atmospheric nitrogen to a form which can be used by the plant Nucellus- tissue within the ovule O Ontogeny- course of development Organelles- structures within a single cell Ovule- section of the female flower containing the haploid (1n) gamete which will form a seed upon fertilization P P1 Generation- first parental generation, the parents crossed to form F1 or F1-hybrid offspring Parthenocarpy- the production of seeds without fertilization Pathogen- an organism causing a specific disease Pedicel- point of attachment of staminate or pistillate calyx Pentyl- a 5-carbon group Perianth- outer seed coat, displaying seed color and pattern Pericarp- protective outer seed covering or shell Periclinal- parallel to the surface Perisperm- nutrient region of the seed pH- a measurement of acidity-alkalinity : 1 is most acid, 14 is most alkaline, and 7 is neutral Phenotype- outwardly measurable characteristics of an organism determined by the interaction of the individual genotype with the environment Phloem- vascular tissue of the root, stem, and leaf through which water and biosynthetic plant products such as sugars, carbohydrates, and growth substances are translocated Photoperiod- lighted portion of daily light cycle Photosynthates- products of photosynthesis Photosynthesis- formation of carbohydrates by green plants from sunlight, CO2, and H2O Phyllotaxy- the pattern of growth and form of leaves along a stem Phytotron- an indoor area with extensive environmental controls for the experimental growth of plants Pistil- paired female organs for pollen reception made up of a fused stigma and style Pistillate- female Plasmodesmata- pores in the cell walls between adjoining cells Pollination- pollen from a stamen landing on the pistil of a flower Polyembryony- the presence of more than one embryo in an ovule Polyhybrid Cross- a hybrid cross for more than one trait Polymerization- linking of small molecules together into a chain or network Polymorphous- variously shaped Polypliod- the condition of multiple sets of chromosomes within one cell (e.g., 3n or 4n) Primordia- tiny shoots (usually floral) which first appear behind the stipules along the main stalk and limbs Propyl- a 3-carbon group Protectant- a long-term treatment to kill disease organisms present in the soil around the seed or plant Protoplast- cell contents Pruning- removal of living tissues such as meristems or small limbs from plants Psychoactive- affecting the consciousness or psyche Purebred- a homozygous individual resulting from the inbreeding of a strain R Radicle- embryonic root tip 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 Recombination- formation in offspring of a new gene pair different from those pairs found in either parent Rejuvenation- growth on a mature, flowered plant such that the new growth is juvenile, prefloral limbs Retting- the breakdown of tissues and epidermal layer that join fibers into bundles so that the individual fibers are freed Roguing- removal of undesirable plants from the population S Scion- stem shoot tip used in a graft Selection- choosing of favorable offspring as parents for future generations Senescence- the decline towards death of an organism Sessile- attached flush with the surface Sex Limited- a trait expressed by only one sex Sex Linkage- genes occurring on the sex chromosomes Sexual Propagation- reproduction by recombination of genetic material from two parents through the union of two gametes Sinsemilla- the phrase sin semilla is Spanish, originating from Mexico, and means literally "without seed"; the English word sinsemilla means mature seedless pistillate marijuana grown by removing male plants to prevent pollination Soil Atmosphere- gaseous portion of the soil Soil Solution- liquid portion of the soil Somatic- pertaining to the physical body Sporogenous Tissue- tissue related to the development of spores (pollen) Sport- plant or portion of a plant which carries and expresses a spontaneous mutation Stamen- male pollen-producing organs consisting of two parts: anther and filament Stamenoia- excessive and premature concern on the part of a cultivator that staminate plants might pollinate the precious sinsemilla crop Staminate- male, possessing stamens Stipule- reduced bractlet on either side of the petiole at the stem and subtending each calyx Stock- stem section with roots attached used in a graft Stomate- pore on the epidermal surface of a plant which allows the interchange of air and water vapor Strain- a line of offspring derived from common ancestors Subtends- situated below Symplast- continuous cytoplasm shared by several cells Symplastic Growth- growth accompanied by the growth of surrounding tissues Systemic Roots- roots that appear along the developing root system originating in the embryo T Tapetum- inner nourishing layer of the pollen sac wall Terpene- organic molecule of strong aroma Testa- covering surrounding the embryo of the seed Tetrahedral- grouped in four or with four sides Tetralocular- having four sections as in an anther Tetraploid- having four sets of chromosomes (4n) in contrast to the usual diploid (2n) condition THC- tetrahydrocannabinol THCV- tetrahydrocannabiverol TLC- thin-layer chromatography Top Mulching- surface dressing of soil with compost or other organic material to supply nutrients, add root space, and reduce water loss by evaporation Trace- small area of vascular tissue connecting two like protions of the vascular system such as stem xylem and leaf xylem Trellising- method of shape and size alteration through physical restriction of growth (i.e.; tying plant down to a wire frame) Trichome- plant hair Triploid- having three sets of chromosomes (3n) in contrast to the usual diploid (2n) condition True-breeding- homozygous for the particular trait or traits V Vacuole- space within a cell separate from the cytoplasm W Whorled Phyllotaxy- three or more limbs appear per node Wild- weedy, escaped, naturalized, or indigenous X Xylem- vascular tissue of the roots, stems, and leaves through which water and nutrients flow upward from the roots Authored by og bub Last edited by babbit; 09-04-2005 at 11:16 AM.. Reason: typo 
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#2
09-04-2005, 11:23 AM
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WOW
THANK YOU! This will make a great bookmark in adtion to my legit resource of terms :P - https://davesgarden.com/terms/
here's 1 entry, Definition of petiole- Petiole: the leaf stalk, connecting the leaf to a stem or branch taken without permission from: https://davesgarden.com/terms/go/664/
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#3
08-31-2006, 02:25 PM
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bump
this should soooooooooo be a sticky.. Maybe an update would do too 
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#4
09-01-2006, 10:24 AM
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indeed
__________________
RIP Hillie
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#5
09-01-2006, 11:08 AM
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....Good info babbit.....
.....Thread made sticky!
__________________
'It can all start from a seed'
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#6
10-06-2006, 06:09 PM
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That's a good setup with the terms, if only we had one for some of these abbreviations. I'm lost as to IMHO or something like and then today I think I saw IHO. Can someone breakdown what these abbreviations are supposed to mean and any others that are used frequently?
__________________
OG Refugee (It's good to be home again...) Overgrow da world! 36 Bagseed Outdoor Guerilla style, '17 32 Bagseed Outdoor Organic, '14 ManyManySpliff's & Friend Bagseed Grow, '12 13 Bagseed Ladies Harvested, '06 The Purps of '06 Proud member of the  D.S.C.C. - Dirty South Cannabis Cultivators
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#7
10-06-2006, 06:15 PM
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#8
10-06-2006, 08:16 PM
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Thanks, IHO was an error.. I was thinking of that IMO, couldn't remember the exact spelling. I appreciate the link though. Thanks a mil!
__________________
OG Refugee (It's good to be home again...) Overgrow da world! 36 Bagseed Outdoor Guerilla style, '17 32 Bagseed Outdoor Organic, '14 ManyManySpliff's & Friend Bagseed Grow, '12 13 Bagseed Ladies Harvested, '06 The Purps of '06 Proud member of the D.S.C.C. - Dirty South Cannabis Cultivators
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#9
10-06-2006, 09:20 PM
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you're welcome a mil :smile:
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