AK77TNRF1 by Bay Seeds

AK77TNRF1 strain photo
Type mostly sativaFlower ±50 daysCross AK-77V × TNR

Growers reach for AK77TNRF1 as a sativa-leaning option, a cross of AK-77V × TNR out of Bay Seeds. Indoors it typically finishes flowering in around 50 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real AK77TNRF1 grows against.

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Similar strains

BDTNRF1Bay Seeds · ±50 daysAK47TNRF1Bay Seeds · ±62 daysPPVTNRF1Bay Seeds · ±90 daysBB3TNRF1Bay Seeds · ±50 daysKC's StrawberryBay Seeds · ±70 daysT1000F1Bay Seeds · ±80 daysCinderella 99Reeferman · ±50 daysCritical Neville Haze AutoDelicious Seeds · ±50 daysHashplant 2HFH · ±50 daysHiggs BosonGoldenseed · ±50 daysKiller QueenB.C.G.A. · ±50 daysMana KushWhite Woods · ±50 daysAll Bay Seeds →
BreederBay Seeds
Typemostly sativa
Flowering time±50 days
EnvironmentOutdoors, Greenhouse
LineageAK-77V × TNR

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🧬 Explore the family: AK-77V

Ancestry Pedigree

AK-77V
Victory Seeds
AK47
Serious Seeds
Colombia Sativa
Original Strains
Mexico Sativa
Original Strains
Thailand Sativa
Original Strains
Afghanistan Indica
Original Strains
TNR
KC Brains Holland
Thailand Sativa
Original Strains
KC 2
Unknown or Legendary
Unknown Strain
Original Strains

Growing AK77TNRF1: what to expect

As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with AK-77V or TNR will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.

AK77TNRF1 FAQ

How long does AK77TNRF1 take to flower?

AK77TNRF1 typically flowers in around 50 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is AK77TNRF1 an indica or a sativa?

AK77TNRF1 is listed as mostly sativa.

What are the parents of AK77TNRF1?

AK77TNRF1 was bred from AK-77V × TNR by Bay Seeds.

What environment does AK77TNRF1 like?

Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.

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Facts compiled from public breeder listings. Growing AK77TNRF1? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.