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where to find unbred cannabis seeds

What is an Inbred line?

As we have mentioned previously in the article titled ‘What is a Landrace?”, a Landrace cannabis strain comes from a particular location. They can show a lot of variation, although they retain certain traits that allow it to be still identifiable as a member of that particular landrace lineage.
Landraces are very useful to have in your collection, as you never know when some sort of natural disaster may occur and wipe out a population, or whether a country’s government may pass some sort of law or initiative to destroy cannabis plants in a certain area, both eventualities have happened many times before. Landraces have a lot of uses in breeding also. However their instability brings awkwardness, and makes landraces difficult to work with when the plant is grown by companies that produce medicine out of cannabis (such as GW pharmaceuticals), or growers in countries or states where personal cultivation is allowed.

Inbred lines are strains that have been crossed back into themselves, or that have been crossed with a very closely related strain. Because the strain has been crossed with itself the scope for genetic variation has narrowed, more so than what you would find in a common hybrid, or a landrace variety. Generally speaking an Inbred line is a breeders attempt at making a strain more homogeneous, a breeder would stabilise the particular traits that they had highlighted to be valuable. These traits would be selected for over and over again, to ensure that they were present in future offspring.

Please go to the following link to see ALL Inbred lines available in Seed City

Here below are some inbred lines that you may be interested in:

Afghan Kush – White Label Seeds

“The original ‘AK’, brought from the heart of the Hindu Kush mountain range where its genotype has been selected and perfected over centuries to be the ultimate source of cannabis resin. Fragrant north Indian charas and sticky black Afghani hashish are both largely produced from Kush plants — a subset of the Indica family which may be considered definitive examples of that line.
Afghan Kush produces a heavy yield and remains compact, especially working with clones. Growers who flower their original seed plants will notice a jump in height at the onset of blooming, due to this strain’s natural vigour. Leaves are broad-bladed and dark green. Afghan Kush buds develop into massive, blunt-topped, resin-saturated nuggets of pure Indica goodness.”

Afghani – Homegrown Fantaseeds

“Afghanistan is well known for its high quality hashish, but it is also the homeland to some of the world’s more potent types of Cannabis from the original “Afganica” gene pool. Our Afghani is a product of many years of development to maintain and improve the true potency and taste of this legendary strain from Afghanistan. Afghani is a 100% indica variety with sedative effects. Very potent “medicinal” strain for muscle related ailments.”

Burmese – BC Bud Depot

“Burmese is easy to grow, easy to clone and very stable. Don’t veg this mostly sativa for too long too avoid possible height problems. This bud has a very aromatic smell.”

Bubblegum – Serious Seeds

“Bubble Gum is a medium tall, usually not too branchy (sometimes stretchy) plant, producing compact, crystal covered buds. Originally the Bubble Gum was developed by growers in Indiana,USA. From there the genetics moved to New England and eventually Holland. lt took many generations to finally produce this stable Bubble Gum, with the characteristic, sweet smell (truly resembling a typical bubble gum taste) and euphoric high; the original trademarks of this famous strain. The only inbred strain (no F1 hybrid) on the Serious menu. Winner of two awards in the High Times Cannabis Cup of 1994, a 2nd place in 1995 and again a 2nd prize in 1999, gives Bubble Gum a total of 4 awards from the judges.”

China Yunnan – Ace Seed bank

“GENETICS Dominant indica line coming from Yunnan, a southern China province which borders on Birmania/Myanmar. DESCRIPTION This exotic plant, a posible connection between the classical indicas and the South Asian sativas, shows features of both sides of the cannabis. On one hand, it grows strong and compact with beautiful wide leaves and a hash plant look. Its flower ripens quickly with a high resin production and a creamy scent.On the other hand, it shows some Asian sativa features which can be appreciated in the beginning of its effect and in certain incensed and woody aromas. With all our fondness, we offer to the growers’ community this rarity, hardly introduced in the modern breed. We hope you preserve it and use it for your breeding projects. STRUCTURE Robust, short-knoted. Indoors, with short veg cycles, it produces columnar plants with a big main bud. Outdoors, with longer veg cycles, it develops a branched, ball-shaped structure. BOUQUET Dense, sweet and creamy indica aroma, with woody and spicy Asian sativa touches. HIGH Happy and visual at first, then warm, relaxing and pleasant in the end.”

Durban Poison – Dutch Passion Seeds

“Imported from South Africa, produced in Holland. Exclusively inbred, never hybridized, 100% Sativa. Large long budleaves, buds are also large and long with lots of resin. A sweet licorice or anise flavour. “Up” high similar to Thai. High yields. Well suited for outcrossing with late bloomers to produce earlier flowering. Also does very well under artificial light. A very popular variety.”

Maple Leaf Indica – Sensi Seeds

“A relatively new release as a seed, this fat, sticky hash-makers’ plant has long been prized for its sparkling coating of resin glands and syrupy sweet citrus bouquet. Maple Leaf Indica is bred from precious, vintage Afghanica gene-stock – parent plants that have formed part of several important Sensi Seeds hybrids and which represent one of the surviving strains behind original Mazar-i-Sharif hashish.”

OG Kush – Lemon Larry – Alpine Seeds

“The “Lemon-OG.Kush Larry” is growing very homogeneous, there are only two distinct phenotypes which are exclusively in height and slightly different in the flower structure. One phenomenon is the “Lemon Larry“ who is growing a bit more compact and wide, almost like Indica leaves formed. The buds are tight and staggered off a very intense and strong odor, which is almost too strong, and also by several ziplock bags clearly visible. “

Original Cheese (IBL) – Paradise Seeds

“Original Cheese is a classic and unique strain, dating back to the end of the 80’s it was for sale in some coffee shops in Amsterdam, then it disappeared and Superskunk became the most popular for some time. We received the original female Cheese clone in 2003 from our red eyed friend in London. Since, we have crossed it with several varieties but never released any, instead we decided to make it available in its pure original form. (in bred line)
Plants are giving high yields of very hardy & large chunky buds with the distinctive Cheese smell and flavour. We recommend the Original Cheese (IBL) to all lovers of very pungent Skunk.”

Original White Widow (IBL) – Paradise Seeds

“White Widow is one of the most famous plants in the world winning numerous cannabis cups.
We have used the original female clone and the selected ww male since 1996 when both plants were given to us by our friend Ingemar the original breeder.
Working with the WW in some of our crossbreeds has always been a good choice, it has proven to enhance the quality.”

Pakistan Chitra Kush – Ace Seed bank

“GENETICS Pure indica from Chitral, Hindu Kush, Pakistan DESCRIPTION Chitral is widely known in the cannabis world as being producer of one of the best Pakistan’s hashes. The Pakistan Chitral we offer you is an excellent pure indica bred in the Iberian Peninsula since middle 90’s. It has been picked and reproduced by Cannabiogen for more than 5 generations in order to get the best hash plant expressions and to keep a wide genetic diversity in the population.”

Power Plant – Dutch Passion Seeds

“Powerplant (mostly Sativa) was developed by us in 1997 from new South African genetics. This strain has been inbred only, never hybridised. Very rich in THC. It is a strain with an enormous grow potential. Indoor as well as in a greenhouse the plants have an enormous yield. Indoors flowering starts already one week after turning back the lightcycle to 12 hours. Outdoor, flowering starts late, but the plants ripen very fast. This variety is very uniform. Strong “up high”, very soft smoke.”

The Purps – BC Bud Depot

“A strain of legend, The Purps has gone on to win many awards in recent years as some of the best tasting smoke the world has ever seen. Dense yields of pure purple. The taste is soothing, the buds dank, the bouquet is tantalizing euphoria. The high is both uplifting and soaring, with a zero burnout factor and a deep purple grape taste that lingers forever. If you want a garden so dank that you will start questioning the true meaning of life – go with The Purps. A First Place Strain Of The Year and a Two-Time BC Bud Depot Cannabis Cup Winner.”

Here at Seed City we hope that you’ve enjoyed this article about ‘What is an Inbred Line’. As always if you have any questions about this article or any of the articles on Seed City or would like to add anything please do not hesitate to Contact Us.

Inbred Cannabis

In cannabis cultivation, inbreeding is the act of crossing a group, family, or variety of plants with one another. This results in inbred cannabis plants; the crossings will have no additional genetic material from outside plant families or unrelated populations.

In addition to 'inbred cannabis', the resulting cannabis from inbreeding is considered an 'inbred line'. This is in contrast to hybrid lines.

Maximum Yield Explains Inbred Cannabis

There are different levels of inbred cannabis. The most severe form of inbred cannabis is the self-cross, in which only one individual's genetic material forms the basis of subsequent generations.

Otherwise known as selfing, once a self-cross of cannabis is produced, from here down there are fewer and fewer degrees of inbreeding, as the crossed pairs become less and less related.

Inbreeding leads to an increase in homozygous plants and an increase in variability between related inbred populations.

Inbred lines of cannabis are the strains that have been crossed back into themselves, or those strains that have been crossed with a very closely related strain.

Since the strain has been crossed with itself, the scope for genetic variation has narrowed, more so than what would be found in a common hybrid or a landrace variety.

Generally speaking, an inbred line is a breeder’s attempt at making a strain more homogeneous. For an inbred line, a breeder would stabilize the particular traits that had been highlighted to be valuable. These traits would then be selected over and over again to ensure that they are present in the future offspring.

In contrast to inbreeding, there is outbreeding. Outbreeding refers to the process of crossing or hybridizing plants with other plants that they bear only a distant relation to.

When a grower is outbreeding plants that reside outside of a plant variety, hybrid seed is produced.

Basic genetics applied to marijuana strains

To be able to create stable and top-quality marijuana strains, our breeding team always takes into account several basic plant genetic concepts that help us stabilizing the desired traits from our parents to their offspring. Mendel’s Laws (Gregor Mendel 1885-86) were the foundations upon which plant genetics were based, explaining the inherintance of different traits among individuals of the same species. Thanks to these Laws, nowadays we can create autoflowering, purple or high-CBD strains, besides the large number of possibilities that arise if they are correctly understood. First, we all should know what is a landrace and what is an IBL (Inbred Line).

Mendel’s Laws and chromosomes

Landrace marijuana strain from Philosopher Seeds

A landrace or purebred is the endemic cannabis strain of a specific area. Generally – as long as they are kept pure – these plants will be very homogeneous, so they will have almost the same growing and flowering patterns and their organoleptic properties will also be quite similar. Our Early Maroc strain is the perfect example of a landrace or purebred.

Early Maroc grown outdoors

Early Maroc’s colas, grown outdoors

Marijuana hybrids from Philosopher seeds (IBL)

IBL (inbred line) is how stable hybrids are called, hybrids which have been stabilised and show little variations on their phenotypes. Achieving an IBL is hard and requires time and patience; just to mention a few examples, Skunk or Northern Lights are typical IBL lines, as well as other strains which have been highly stabilised during the years, like Blueberry or White Widow.

Sour Diesel IBL “Riri” cut, grown by amc98

Knowing this, we can continue with the next step: F1’s, F2’s, etc. F1 is the first filial generation from the cross of two different parentals, whether landraces or IBL’s. This first offspring of the cross will show the so-called hybrid vigour, what means that we will have better individuals than their parents, being more vigorous and strong than those from the parental generation, with better flower production and very homogeneous. A F2, then, is the second filial generation, the result of crossing individuals from the first filial generation (F1). Probably, we’ll lose the “hybrid vigour” trait in this second generation, as well as the stability of the first one. The F2 offspring will show 50% individuals with similar traits to the father or mother, while the remaining 50% will show intermediate traits. By crossing the F2 generation we get the F3, and so on. All autoflowering strains from Philosopher Seeds, like Cheesy Auto, have been developed with this technique, achieving autoflowering hybrids from the fourth filial generation (F4).

Cheesy Auto marihuana

Back-crossing marijuana strains

A BX – or backcross – is the cross between a F1 individual and one of its original parentals. This technique is useful if we want to stabilize particular traits from the parental to its offspring (resistance to pests and diseases, yield, flowering time, etc. ). Once we have this first BX1, we can cross it again with the original parental to fix more traits (or to reinforce the fixed ones, getting the second backcross or BX2). Backcrossing is often used to replicate clone-only strains in seed form, so we achieve plants from seed very similar to the clone-only specimen; in this case, we use a male plant called “donor”, which often has a trait that the clone-only strain lacks, and cross its offspring with the original mother as many times as needed (cubing).

Motherplant with very special traits

S1 is the result of crossing a female plant with herself by sex reversal, so we use a single phenotype for the whole process and get feminised seeds only. The Tropimango is a perfect example of this type of genetic cross. Like we mentioned before regarding back-crossing and cubing, the S1 is another way to replicate a clone-only female whose parentals are lost, in this case, without using any male plant or “donor”.

To close the post, we will explain what are poly-hybrids, the most common type of seeds found on the market today.

Marijuana Poly-hybrids

A poly-hybrid is a cross between two non-stabilised different hybrids. Most commercial cannabis varieties offered by seedbanks are poly-hybrids. They are not F1s since their parentals are neither landraces nor stabilised strains. The resulting plants are usually vigorous but rather unstable; through a hard process of selection, we’ll find good individuals, but this will depend on how stable are the landrace parentals chosen to create the hybrid, and also on how stable are the hybrid parentals themselves. After many different crosses among our genepool, we have finally achieved a great poly-hybrid with tropical smell and taste, the Jack el Frutero variety .

Fruity Jack / Jack El Frutero close-up view

We hope this post has been interesting, see you soon!

Comments in “Basic genetics applied to marijuana strains” (1)

Jan 2016-02-04
I’m thinking of crossing a 1.Male Pure Thai/Cambodia Border Landrace, with Auto Blueberry and Auto Skunk , 2 F1.Male Thai-Blueberry with Female Thai-Skunk and Male Thai-Skunk with Female Thai Blueberry 3 F2,Male (TBS) Thai blueberry skunk with female (TSB) Thai skunk blueberry, and (TSB) Male skunk blueberry with Female (TBS) Thai Blueberry Skunk 4 F3. Male (TSB) skunk blueberry with (TSB> Skunk blueberry female, and (TBS) Blueberry skunk male with (TBS) Thai blueberry skunk female 5 F4. Male TSB and TBS with original blueberry Auto Female and Skunk Female Autos, i wonder if it would create 100% auto flowering characteristics in F5 as they wil be (TSBB) Thai/skunk/blueberry/blueberry Auto And (TBSS) Thai/blueberry/skunk/skunk Auto, any advice would be greatful

Dani 2016-02-17
Hi Jan, A nice breeding project you have mate, good for you! If everything is ok and you only use the autoflowering parents in each generation, you should get 100% autoflowering strains in F5 for sure! Best of luck! 😉