MJBizMag March 2023 - 38

SCIENCE, SEEDS & BREEDS
Reggie Harris examines the
drying and curing room at
Illicit Gardens, which will grow
House of Kush genetics.
Photo by Morgan Miller
because that's what the market wants, "
SunMed's Van Wingerden said.
" When we do our phenotype hunt,
we're running it right alongside our
production plants because we want to
see how those phenos and those new
genetics work with our system, "
Van Wingerden said. " A new genetic
has to match what we're already doing.
It can't need something different.
That's a big part of our selection
criteria, specifically associated with
growth habits. I can't have a real small
plant, but I also can't have a monster. I
need a medium grower because those
medium-aggressive growers match
our system. "
Once SunMed settles on a mother
plant, it asexually propagates the strain
with clone cuttings, Van Wingerden
said.
" That process can go on indefinitely.
Our mother plants here at SunMed
usually have about a six-month
cycle, where they get refreshed with
daughters and granddaughters and
great-granddaughters associated with
38 March 2023 | MJBizMagazine
NOT THE END OF THE LINE
Generation 8 of a mother plant's
cuttings doesn't have to mean new
genetics are needed.
SunMed and a small but
growing number of cultivators
are incorporating tissue culture
to preserve genetics for future
propagation. Tissue culture involves
taking cells from a plant, placing them
in a petri dish with grow medium
and regenerating plant material
that can be grown into new mother
plants and plant stocks. (For details
about tissue culture, see " Scaling New
Heights " in the March 2019 issue of
Plant selections must
work with existing
equipment.
Photo by Morgan Miller
that original phenotype hunt, " he said.
" What we found-and most cannabis
growers will attest to this-is that once
you get down into generation No. 6 or
7 or 8, you have some genetic drift and
degradation. "
MJBizMagazine.)
" To get back to square one, you
have to go through something called
meristem tissue culture. We have that
capacity, and we can refresh those
genetics with meristem tissue culture
and keep that genetic lineage alive, "
Van Wingerden said. " This was a
six- to nine-month process, and then
that process resets the genetic back to
square one. "

https://mjbizdaily.com/digital-issues/2019-03-Mar/86/ https://mjbizdaily.com/digital-issues/2019-03-Mar/86/

MJBizMag March 2023

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