Tips on Breeding by DJ Short

Outkast Seeds

Well-Known Member
Breeding tips
by DJ Short (25 Nov, 2002) How to bring out the Sativa and breed the ultimate buds.

To understand the principles behind the breeding of cannabis you first need to be familiar with some basic terms related to genetics. "Genotype" is the genetic and chromosomal make-up of any given individual – it is the genetic code. "Phenotype" is the expression of body type, structure, and appearance of individuals; it results from the interaction between genotype and environment.

Specific environmental conditions are often required for certain phenotypic expressions from a given genotype. If the available nutrients, hours of sunlight, or other conditions are not available then the development of the plant or animal will be altered. These conditions are referred to as "environmental triggers."

Two individuals with the same genotype can have greatly different phenotypes if grown in different environments.

Indoor vs outdoor

In terms of growing and breeding cannabis, there is a distinct difference between indoor and outdoor grow environments. No matter where on the planet one is, the indoor environment is usually far more limited when compared to the spectrum of conditions existing outdoors.

When compared to the wide variety of conditions available outdoors, the indoor environment may be seen as relatively bland and generic. The greenhouse environment, especially when fortified with electric light, is perhaps the closest thing available to a happy marriage

Three subspecies

It is useful to agree, at least in theory, that there are three separate subspecies of the genus Cannabis – Sativa, Indica and Ruderalis.

Cannabis Sativa is the equatorial variety found primarily around 30 degrees latitude North or South. Sativa generally grow tall, from seven to thirty feet, have many long branches, narrower leaflets, and mature slowly.

Cannabis Indica varieties generally inhabit the areas between 30-50 degrees North or South latitude. Indica are generally much shorter than Sativa, only about three to five feet tall. They have fewer and shorter branches than Sativa, the longer of which are lower on the plant, with much wider leaflets. They also mature earlier and more rapidly than Sativa.

Cannabis Ruderalis grow naturally primarily past 50 degrees north latitude (the Siberian steppes). Ruderalis are the shortest, least bushy, and fastest maturing of the three.

The end of the sweet spots

Prior to the late 1970's, virtually all commercially available cannabis products came from the great outdoors. Many of these varieties had been grown in their particular region since antiquity – not since the advent of sailing had a greater diversification and distribution of the herb occurred.

Most cannabis available was also very well acclimated to its particular region of origin. Certain places tended to produce very unique and desirable types of herb that were renowned to each region. I like to refer to these high-quality cannabis producing areas as "sweet spots." The products coming out of these sweet spots during this era were among the finest herbs ever available.

A series of phenomena occurred in the late 1970's and early 80's that has since revolutionized the cannabis industry. This series included the triad of sinsemilla, High Intensity Discharge (HID) lighting, and the introduction of Indica genetics, coupled with draconian herb laws that drove the industry far underground. Never before in human history was so much genetic diversity of cannabis grown in such generic, indoor conditions. The results of this phenomenon have wreaked havoc on the cannabis gene pool.

The road to blandness

As Indica, sinsemilla and HID lighting became predominant, it became apparent that Sativa varieties were very difficult to coax commercial amounts of sinsemilla herb from indoors. The fast maturing, dense bud structure of the easy-to-grow Indica soon dominated the indoor grow scene.

Another factor contributing to the desirability of the indoor Indica was its truebreeding "dioecious" nature, meaning that individual plants tend to be male or female only, but not both. In contrast, many Sativa strains show hermaphroditic tendencies indoors, with male and female flowers on the same plant. (It is my opinion that wild Sativa strains of cannabis are primarily truebreeding hermaphroditic varieties.)

As outdoor production diminished due to intolerant laws and the drug war, indoor production of Indica phenotypes became the staple of the commercial indoor grower. The road to generic blandness had begun.

Although some Sativa/Indica crosses matched some of the Sativa flavor and head high with the Indica bud structure, this desirability would only last for a few generations of breeding. Unless a person is breeding for a very specific trait, crosses seven generations and beyond the original P1 Indica/Sativa cross lose much of their original charm and desirability. Cloning, however, helps to extend a given plant's potential.

Ruderalis: myth and misnomer

As indoor growers attempted to improve their genetic lines via breeding, another interesting phenomenon occurred: Ruderalis. Although there is a wild variety identified as Ruderalis in Russia ("Ruderalis" is supposedly Russian for "by the side of the road") that grows very short and matures very fast, I seriously doubt the rumor that someone actually went to Russia to collect seeds of this variety sometime in the past. Or, if someone actually did go all the way to Russia to find, collect and smuggle "rudy" seeds, I do feel sorry for their waste of time. They could have gotten the same worthless thing from Minnesota, Saskatchewan or Manitoba with much less hassle.

The North American Ruderalis probably originated as follows: After the Indica varieties arrived in the US and became incorporated into the gene pool, many breeders began to cross the earliest maturing individuals with each other in hopes of shortening the maturation cycle.

It would only take a few generations for the ugly Rudy phenotypes to begin expressing themselves. By ugly, I am referring to a strong lack of potency and/or desirability. I know, I was once guilty of the practice myself. It did not take me long to realize that this was a huge mistake in regard to the quality and potency of the future generations' finished product, and all subsequent breeding along this line was ceased.

Many of these manipulated rudies were released on the open market between 1981 and 1986. It was shortly after this period that the grow journals of the era (Sinsemilla Tips and High Times) ran articles about the possibility of a new wonder variety for indoor grows: fast blooming Ruderalis. Rumor had spread to myth and misnomer. Therefore, it may be more appropriate to say that the Ruderalis phenotype was coaxed from Indica genetics, via the indoor breeding environment.

The same applies to many of the Indica dominant varieties available today. Breeders selecting for early, fast flowering or fast growth often miss out on some of the finer and more subtle characteristics available from crossing certain genotypes. My advice to breeders is to wait until the finished product is suitably tested before coming to any conclusions regarding desirable candidates for future breeding consideration.

Phenotypic expression

The malleability of phenotypic expression among the Sativa/Indica crosses must also be noted. The variability of phenotypic expression among the f2 generation of a truly polar (pure Sativa/pure Indica) P1 cross is quite phenomenal. The second generation f2 crosses will exhibit the full spectrum of possibilities between the original parents – extreme Indica, extreme Sativa, and everything in between.

However, regardless of any particular phenotype selected from among this given f2 cross, future generations may drift radically. Depending on the presence (or lack) of a number of environmental triggers, an f2 Indica phenotype may be coaxed more toward Sativa traits, or an f2 Sativa phenotype may be coaxed more toward Indica expression. The key is environmental conditions.

This is what distinguishes the truebreeding, ancient acclimated, region of origin varieties – especially the tropical and equatorial Sativa – from the crosses that have happened since. The ancient specimens have a much narrower genotype range, and therefore a more specific phenotype than their contemporary crosses despite environmental conditions. It is up to future adventurers to provide the best possible environmental considerations, along with the best possible genetic considerations, in order to resurrect the legendary happy flowers of yore.

Inducing Sativa

After many years of first-hand experience breeding herb indoors as well as outdoors, I am of the opinion that the two most influential factors involving phenotypic variation and expression among current indoor herb breeding projects are the photoperiod (hours of light per day) and the angle of light in relationship to the growing plant.

Specifically, I find the single most powerful influence to the Indica dominant phenotype is the traditional 18/6 veggie cycle and 12/12 flowering cycle. The 18/6 veggie and 12/12 flower cycle is an attempt, however poor, to mimic the Indica-producing photoperiod. It is my belief that this light cycle strongly influences for Indica phenotypic expression.

Sativa phenotype characteristics will manifest under a more equatorial photoperiod, closer to a 13/11 veggie cycle and an 11/13 flower cycle. This is the light timing range to use to elicit more Sativa dominant expression from your plants.

As for the exact photoperiod formula that I incorporate into my growing/breeding regime, this will presently remain a trade secret. My advice is to experiment with different photoperiods, keep good notes and pay attention. Avoid the 18/6 and 12/12 photoperiods, while tweaking the times a bit differently with each breeding cycle until more desirable results in the finished product and their offspring are noted. Here's a hint: work in half-hour increments or a little less, and good luck!

Angle of Light

Angle of light simply refers to the physical angle of light source the plant is dependent upon for growth. Perhaps the greatest difference between indoor and outdoor environments has to do with the angle of light received by the plant. This is also one of the greatest seasonal differences between the Sativa and Indica producing regions.

Outdoors, the main light source is the Sun, with minor influence coming from nearby reflective surfaces. As a plant grows taller and broader outdoors, that angle of light from the sun changes very little in relationship to the growing plant.

Seasonal changes in angle of light increase the further away from the equator one gets. At the equator there is the least amount of seasonal change in angle of light, only about 20°, whereas at the 45th parallel that change is as great as 45°. At the 45th latitude, the Summer Sun is high in the sky while during early Spring and late Fall the sunlight comes from much lower in the sky. The farther one goes from the equator, the greater the difference in seasonal changes regarding angle of light.

Indoors, the lights typically range from a few inches to several feet from the plant. As the plant grows taller, its physical relationship to the bulb's angle of light changes considerably. Most indoor grow rooms have relatively low ceilings, therefore, raising the bulbs may maintain a similar angle of light early on, but eventually the angle changes. The same differences may be noted among plants directly below the bulb and the plants off to the side of the room farther away from the bulb.

Circular light shuttles tend to emulate the arctic summer and create a confusing signal completely unknown to the equatorial Sativa. Straight-track overhead light shuttles are more conducive to inducing the Sativa phenotype.

Aromatics and flavors

Many indoor growers try to get their budding plants as close to the light source as possible. Though this may increase bulk production of both bud and trichome, I find that this practice tends to destroy many of the finer aromatic qualities of the herb.

Buds too close to the light tend to express nothing beyond the lower lemon/lime aromas of the fruity spectrum. Sometimes the aroma is no better than a strong chemical/astringent odor and flavor, especially those under High Pressure Sodium light systems. The finer berry flavors tend to favor more distance from the bulb, and will manifest more strongly under High Ultraviolet Metal Halide light systems, especially during the latter stages of flowering.

Something akin to a gymnasium building with high ceilings and super 5000W lights hung far from the growing plants, set at a Sativa-tweaked photoperiod, would be the ultimate indoor grow-op to coax Sativa phenotypes.

Sweet spot fantasy

Nothing will ever rival the great outdoor sweet spots for quality cannabis production. Hopefully, someday, somewhere, someone will be daring and lucky enough to get away with re-establishing some of the great genetic lines in their specific region of origin sweet spots.

Equatorial Sativa varieties are of interest for quality herb production (Thailand, Oaxaca, Colombia, Central Africa, etc.) as the Indica zones are more renowned for hashish production. Parts of Nepal tend to produce both excellent hashish and fine Sativa buds, with some plants reportedly living longer than two years!

I hope that I am able to live long enough to once again experience the joy associated with the fine herbal products from the great regional sweet spots of near ancient lore. It has been a long time and I am looking forward to the day
 

potpimp

Sector 5 Moderator
What a great article!! The best I've ever smoked was back around 1971 and it was Acupulco Gold. I found some online in Canada and sent them $50 for some seeds but they said it never arived (yeah right!). I've been concerned that the original landrace species might have been wiped out due to the aforementioned Draconian laws. Who in their right mind would play God with a plant so important? (forcing myself to step down off the soapbox). I'm all for going back to the sweet spots.
 

bottomsizzle

Active Member
this man is the 1 sole man responsible for my years of cannabis growing i was introduced to him at a norml function,he gave me a sample of his meds calle d"big bud" today this legandary strain is bred for high quality dense sativa high,well done short....c ya next time im in the area if you read this and if not let me tell all of you novice "dj short"american cannabis hero ask jason king
 

Tanuvan

Well-Known Member
If you plant seeds in their appropriate climates, will selective adaptation bring back the original genetics?
 

SoloGro57

Well-Known Member
I've been enjoying the fruits of the DJ's labors. A sweet little girl named Flo. He's a great breeder. U should defnitely check out his genetics if you're looking for a pleasant high.


She finishes flowering in 7 weeks, and is a joy to cultivate.
 

Mr. Maryjane

Well-Known Member
If my amazing, slightly insane, plan works out, a couple generations from now, we will have diversity again. and me and my family will be rich for hundreds of years. but this article rocks, where can I find more? I wanna know EVERYthing I can about maryjane
 

hazey grapes

Well-Known Member
short was breeding with highland thai before most if not all.

i really like the info about spectrum. i believe it when he suggests halides. my first grow was under my original halide, and i got notes of grape out of super cali mist, joey weed C99, a little and even LSD along with hints of catpiss in early flowering. when i bought a second 400w sodium system for full spectrum and used just the sodium for it's higher output and increased flowering production, i only got a generic fruity flavor out of SCH x C99. a lot of the hazes, jacks and thais i tested had very similar generic fruity flavors.

i posted a thread trying to ask about that as not many growers are using halides, but they should. i recently read an article saying full spectrum is needed for full terpene (flavor) expression and then found another one that suggested halides in particular for sativas. i've even gotten nice leaf trim under shop lights.

i'm glad to see DJ shorts himself verifying this. i bookmarked this.

thanks too for the recommendation to check out TGA's breeding tips. i only have a basic understanding of breeding and skipped all of the highly technical bits in indoor MJ horticulture & MJ botany. it would be cool if a real world breeder would talk at a more basic level about selecting for traits, dominance, what males and females are best suited for passing (though females will pass the most traits to their daughters in f1s).

so dr atomic really DOES have reasons for using halides in his atomic haze. i think i need to get another halide and make the sodium a spare. i don't care about yield as much as quality. fluffier buds are better too as far as i'm concerned... easier to break apart.

good reading. thanks for sharing. now to find TGAs info. you wouldn't happen to have a link would you? i'm sure i can find it with a search engine, but i was wasting time here waiting for a video to load.

here's a similar short post here at rollitup titled breeding better cannabis by TGA
https://www.rollitup.org/advanced-marijuana-cultivation/48785-subcools-breeding-better-cannabis.html
 

hazey grapes

Well-Known Member
must be using good males and clones because to me, jack's cleaner 2 is an equal to cali grown columbian gold sinse. a little stonier, but has a warm & fuzzy touchy feely euphoria gold doesn't and it does visuals too.

maybe sannie's jack f7 is better.

i'm always looking for the best highs possible. TGA has acquitted himself with me so i'd like to try the third dimension next. i already wanted to try his A13 as apollo genius is out of circulation for a minute (it's a vast conspiracy i tell ya!) and i would have liked to have tried jack the ripper under any other name. the subject of murder is not to be joked about even in my abode.

i don't personally care HOW a breeder makes their gear, just how it smokes. if third dimension and then something else maybe down the road suck, i'll be surprised. i expect jack f7 to live up to it's rep too. when a lot of people say the same thing, there's a decent chance it's true.

i wish shorts did 5 packs.
 

homebrewer

Well-Known Member
must be using good males and clones because to me, jack's cleaner 2 is an equal to cali grown columbian gold sinse. a little stonier, but has a warm & fuzzy touchy feely euphoria gold doesn't and it does visuals too.

maybe sannie's jack f7 is better.

i'm always looking for the best highs possible. TGA has acquitted himself with me so i'd like to try the third dimension next. i already wanted to try his A13 as apollo genius is out of circulation for a minute (it's a vast conspiracy i tell ya!) and i would have liked to have tried jack the ripper under any other name. the subject of murder is not to be joked about even in my abode.

i don't personally care HOW a breeder makes their gear, just how it smokes. if third dimension and then something else maybe down the road suck, i'll be surprised. i expect jack f7 to live up to it's rep too. when a lot of people say the same thing, there's a decent chance it's true.

i wish shorts did 5 packs.
You're throwing the term 'breeder' around pretty loosely, IMO.
 

growone

Well-Known Member
excellent thread, subbing to reread at later times
very interested in the 13/11 - 1/13 schedule for popping out sativa traits, if there are any sativa traits in the pheno
 

hazey grapes

Well-Known Member
any seeds are bred

SELECTIVE breeding is a whole other thing. absolutely, it makes a difference. i breed what the fuck i want in my garden and even what i don't if it can at least manage it's odor and select a male from the strain that best suits my tastes or goals. now i've learned to go the opposite route of selecting the first dominant male and instead go for the recessive traits.

i do select too. i'm just starting. until i find better, malawi gold, jack's cleaner 2, sweet haze. haze x skunk and various joey weed cindy apollo crosses are my "keepers". i'm not selecting from a wide range of mother or fathers, but this is just my own working the genes i want into the strains i like best. i'm doing my selecting at the STRAIN level which makes way more difference than at the pheno level as there's a lot of generic haze out there.

i'm already have 2 C99 f2 strains bred. if anything, i'm creating a really wide pool to select from and i'm not even testing everything. i don't have to prove my chops (still working on them) to anyone but myself. pick the best and let nature do the rest. i'm sure if i keep at it, in a few years i can have a few nicely selected mutts of my own.

i like what i smoke and am doing the EXACT OPPOSITE of cash crappers. someone's got to for the greater good.

when i get settled fully in my grows and start getting 100% viability, i'll look into a way to anonymously gift the strains to med users.

i have no patience for control freaks myself. that's a big part too of why i like to do the opposite of everyone else in general. i'm doing my own thing an i ain't askin' for anyone's approval.
 
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