Regular Seeds: Cannabis’s Genetic Library

Browse through most seed shops today and the regular section is the shelf at the back: smaller every year, priced cheaper than the feminized packs beside it, and bought by a shrinking group of people who understand exactly what they are looking for. It is easy to see that as the end of a technology. It is closer to the truth to see it as a library losing shelves while the paperback rack next door grows. Every female-only line started as a regular one, each new cross requires a male at some point in its pedigree, and the diversity of cannabis genetics that exists at all exists because someone held onto regular seed. Dedicated sellers such as https://breederregularseeds.com carry lines that trace to the 1980s, offered in packs of 10 seeds because a pack is meant to be a population, not a one plant. This article sets out the case for that unfashionable pack: what the male is for, what a buyer gives up by not seeing one, and how to get value with a population rather than a clone.

What a Male Plant Is Actually For

The easy account of a male cannabis plant is “a pollen source”, and for a flower grower that is the whole of it. To a breeder it is half the genome of every seed which follows, and half is chosen with the same care as the mother.

A male passes on structure, vigour, flowering time, resistance to mould and pests, resin production and the aromatic chemistry exactly as the female does; it just expresses some of those traits less visibly since it does not produce a smokable flower. Those who breed with regular seed spend at least as much time choosing males as females, and this is the work that a feminized cross inherits and can never repeat. Reversing a female yields pollen; it does not give a different set of selected genes.

The Narrowing

Much of the feminized catalogue is built from S1 seeds: a one popular clone, treated and crossed with itself. Every generation of that selfing cuts in half the surviving genetic diversity, and after two generations what remains is essentially one plant repeated in slightly different ways.

This is fine for a consumer who needs that one plant. It is a loss for everyone downstream. Hidden faults surface: intersex tendencies, brittle stems, susceptibility to one particular mould. Qualities that were present in the original line but absent in the chosen clone vanish from the population altogether. A decade of such breeding leaves a market full with variations of the same few plants, and a anyone wanting to make something different discovers there is little left to cross. Regular seed from an outcrossed line is the store that replenishes the market, and it can only exists as long as somebody keep growing it.

Reading a Male Plant

Guides on choosing females are everywhere; guidance on choosing males is scarce, because most growers do not keep one past the first week of flower to look. For anyone producing seed, these are the marks breeders look for.

  • Resin on the stem. Scratch a stem or a flower cluster and smell it. A male with resin on its flower parts and a clear aroma suggests it carries the terpene genes worth keeping.
  • Restraint. Males that dump enormous quantities of pollen early are often the least selected in other respects; breeders prefer steady producers.
  • Stability. Any male that also shows female pistils under normal stress is rejected without exception; that trait is the last thing anyone wants breeding forward.
  • Timing. A male that declares sex first and flowers in step with the females is more workable than a very early one that sheds pollen before any female is ready.

A Pack Is a Population

A mistake first-time regular-seed growers make is treating a pack as 10 attempts at the one plant. It is the opposite. A pack from a genuine outcrossed line is a slice of a population, and the point of growing it is to see the range and choose from it.

Roughly half the plants will be male, so a pack of 10 seeds gives something like five females to evaluate and five males to discard or assess for breeding. Among the females, expect noticeable variation: stature, finishing time, smell, density, resistance. That spread is not a flaw in the seed; it is what the seed is selling. The grower who takes cuttings from the best female and male has something a feminized pack can never supply: a line of selected parents that are theirs.

Making Your Own Seed

Holding chosen parents is only worth something if making the next batch, and there the options open up. Three approaches cover most of what small-scale breeders do.

  • Backcross. Take a selected offspring again to one of its original parents to lock in a particular trait. It narrows the range quickly and is useful when a single plant shows something worth concentrating and the other contributed mainly vigour.
  • Selected cross. One picked male on one or several chosen females, everything else removed. The seeds inherit the traits of the two specific plants and show narrower spread than the parent pack. Done over generations with consistent choices, this is how a stable line is made.
  • Open pollination. Let each male reach each female. It keeps the full range of the line, makes a large volume of seed, and involves no selection at all. This is how traditional lines are kept alive, and it is the right method when the aim is preservation not refinement.

Each of these need nothing more than a separate space for the male, a soft brush or a small bag, and a few weeks. Not one of them calls for the chemical treatment that feminized production does.

Landraces and Heirloom Lines

Some lines were never been feminized and probably never will be: landraces collected from regions where cannabis was grown over centuries, and heirloom hybrids from the early decades of indoor breeding. They are sold as regular seed since the people keeping them treat the population as the entire value, and selfing a single plant would destroy precisely what makes the line worth keeping.

Running a landrace from regular seed is a different experience from running a commercial hybrid. There will be wide variation, long flowering periods in equatorial lines, lanky plants, and qualities that make sense in a field but not in a small room. There will be also flavours and chemistry that do not exist in the commercial market anywhere. Breeder Regular Seeds keeps a separate landrace and heirloom section, and each line labelled with its origin of collection and the generation it has been reproduced from the first collection.

The Honest Exclusions

Nothing of the above turns regular seed into the best option for everyone, and claiming otherwise would the product no service.

A grower with room for a handful of plants who wants every one of them to flower is better served with feminized seed. The same is anyone unable to inspect the plants each day during the start of flower, because a missed male in a confined space seeds everything within days. A person growing a single autoflower on a balcony gets no use from a population they cannot choose from. And a buyer who wants a specific famous plant repeated as closely as possible is looking for a feminized S1, not a regular cross. Regular seed is for the grower who wants to select, to hold onto and at some point to produce something of their own; for everyone else the back shelf is best ignored where it is.

Practicalities

Breeder Regular Seeds sends every order in unmarked parcels with the original packs sealed inside and no on the exterior to reveal the contents. Orders to the United States are not taken, because seed importation is not permitted there. Seed law differs sharply by country: in many places buying seeds is legal as genetic preservation while germinating them is not, and in others both are permitted under local rules or neither is. Knowing the rules where you live is the buyer’s responsibility, and nothing of this article should be read as legal advice.

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