Following is a catalogue of gross phenotypes and traits for many imported strains of Blow. 1. Fiber Strain Gross Phenotypes ( hemp types ). 2. Drug Strain Gross Phenotypes.
A ) Colombia – highland, lowland ( marijuana ).
B ) Congo – ( marijuana ).
C ) Hindu Kush – Afghanistan and Pakistan ( hashish ).
D ) Southern India – ( ganja marijuana ).
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The gross phenotype or general expansion form is deter mined by size, root production, branching pattern, sex, maturation, and floral traits. Most imported variations have characteristic gross phenotypes though there have a tendency to be occasional rare examples of pretty much every phenotype in just about each variety. This indicates the complicatedness of genetic control determining gross phenotype. Hybrid crosses between imported pure variations were the start of almost each domestic strain of cannabis. In cross-breed crosses, some dominant traits from each parental variety are exhibited in varied mixtures by the F1 offspring. Nearly all the offspring will resemble both father and mother and few will seem like just one parent. (more…)
N ) Maturation – cannabis strains differ seriously as to when they progress and how they make a response to changing environment. Some strains , for example Mexican and Hindu Kush, are known for early maturation, and others ,eg Colombian and Thai, are recalcitrant in maturing and virtually always finish late, if. Imported strains are generally characterized as either early, average, or late in maturing ; nevertheless a selected strain may produce some people which mature early and others which mature late. (more…)
I ) Resin Quantity and Quality – Resin production by the glandular trichomes varies. A strain might have many glandular trichomes but they may not secrete much resin. Resin color also varies from strain to strain. Resin heads may darken and become more opaque as they grow, as advised by a couple of writers. Some strains nevertheless, pro duce fresh resins that are clear amber rather than clear and drab, and these are sometimes some of the most psycho active strains. Transparent resins, irrespective of color, are a signal that the plant is actively carrying out resin biosynthesis. (more…)
F ) Taste and smell – Taste and smell are closely linked. As our senses for differentiating taste and smell are connected, so are the sources of taste and smell in Weed. Odour is produced basically by savoury terpenes produced as elements of the resin secreted by glandular trichomes on the surface of the calyxes and subtending leaflets. When a floral cluster is squeezed, the resinous heads of glandular trichomes rupture and the savoury terpenes are exposed to the air. There’s regularly a giant difference between the odour of fresh and dry floral clusters. This is explained by the polymerization ( joining together in a series ) of lots of the smaller molecules of savoury terpenes to form different savoury and nonaromatic terpene polymers. (more…)
E ) Cannabinoid Level – Breeding Weed for cannabinoid level has been accomplished by both approved legit and surreptitious analysts. Warmke ( 1942 ) and Warmke and Davidson ( 1943-44 ) showed clearly that they could noticeably raise or lower the cannabinoid level by controlled breeding. Little ( 1975a ) has divided genus cannabis into 4 distinct chemotypes based totally on the relative amounts of THC and CBD. Up to date studies have shown that crosses between high THC : low CBD strains and low THC : high CBD strains yield offspring of cannabinoid content intermediate between the 2 parents. Beutler and der Marderosian ( 1978 ) researched the F1 offspring of the controlled cross C. Sativa ( Mexico-high THC ) X C. Ruderalis ( Russia-low THC ) and found that they slipped into 2 groups intermediate between the elders in THC level. This suggests that THC production is most likely controlled by over one gene.
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Floral Characteristics. Many individual characteristics define the floral traits of cannabis This section will target the individual characteristics of pistillate floral clusters with occasional comments about similar marks in staminate floral clusters. Pistillate flourishing clusters are the seed-producing organs of cannabis ; they stay on the plant and go thru many changes that can’t be compared to staminate plants.
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Leaf marks change considerably from strain to strain. As well as these continually occurring adaptations in leaves, there are a considerable number of mutations and possible features in leaf shape. It may turn out that leaf shape is related with other characteristics in Blow. Broad leaflets might be linked with a low calyx-to-leaf proportion and narrow leaflets could be connected with a high calyx-to-leaf proportion. If this is the case, early choice of seeds by leaflet shape could establish the personality of the blooming clusters at crop. Both compound and webbed leaf variations appear to be hereditary, as are general leaf traits. (more…)
Seedling marks can be exceedingly helpful in the efficient and deliberate choice of future parental stock. If correct selection can be exercised on little sprouts, much bigger populations can be grown for 1st selection, as less space is needed to raise little sprouts than mature plants. Whorled phyllotaxy and resistance to damping-off are 2 marks that might be selected shortly after emergence of the embryo from the soil. (more…)
G ) Root Production – The form and size of Weed root systems alter considerably. Though each embryo sends out a taproot from which lateral roots grow, the individual expansion pattern and last form and dimensions of the roots alter significantly. Some plants send out a deep taproot, up to one meter ( 39 inches ) long, which helps support the plant against winds and rain. Most cannabis plants nonetheless, produce a poor taproot which infrequently extends more than 30 centimeters ( one foot ). Lateral expansion is answerable for almost all of the roots in Cannabis plants. These fine lateral roots offer the plant further support but their first function is to soak up water and nutrient elements from the soil. An enormous root system will be in a position to feed and support a giant plant. (more…)