Whether you’re a cannabis breeder, seed producer, or grower looking to better understand feminized cannabis genetics, this episode covers the complete process and the key factors that can make or break a feminized seed project.
James takes a deep dive into the biology and breeding principles behind feminized seeds—from understanding genotype vs. phenotype and intersex expression to selecting breeding plants, creating reversals, pollinating, harvesting, drying, and storing seeds.
🌱 FEMINIZED SEEDS MASTERCLASS
Topics Covered:
Feminized seeds • Cannabis breeding • Seed production • Cannabis genetics • Genotype vs phenotype • Plant sexual expression • Intersex plants • Sexual stability • Feminized breeding • S1 seeds • Plant reversals • Reversal technology • STS / Silver Thiosulfate • Pollination • Pollen collection • Pollen storage • Seed development • Seed harvesting • Seed drying • Seed storage • Population size • Breeding mistakes
Chapters:
00:00 Introduction
00:51 What Are Feminized Seeds?
01:48 XX vs. XY Genetics Explained
04:27 How Feminized Seeds Are Made
05:12 Genotype vs. Phenotype
06:24 Genetic Stability vs. Sexual Stability
08:24 Dioecious, Monoecious & Intersex Plants
13:10 How Environment Changes Plant Expression
15:59 Stress & Intersex Expression
19:41 Selecting Plants for Feminized Breeding
23:55 Breeding for Resistance & Better Traits
24:53 What Are S1 Seeds?
30:22 Reciprocal Crosses Explained
31:26 How Plant Reversals Work
32:28 STS, Colloidal Silver & Reversal Methods
35:16 Reversal Safety & Common Mistakes
38:37 Timing Your Reversals
41:38 Pollen Windows & Pollination Timing
43:15 When Are Cannabis Seeds Ready?
45:17 Pollen Quality & Collection
46:45 How to Store Pollen
48:04 How to Pollinate Your Plants
50:59 Labeling & Building Redundancy
53:43 How to Harvest Cannabis Seeds
57:31 Drying & Storing Seeds
58:51 Germination Testing
1:00:07 Are Feminized Seeds Stable?
1:00:47 Population Size & Pheno Hunting
1:04:15 Advanced Cannabis Breeding Concepts
1:05:15 Why Feminized Seed Projects Fail
1:07:56 Final Advice & Closing
What topic should we dive deeper into next? Drop your questions in the comments.
Follow us on Instagram for more content:
James Loud Podcast Instagram: @jamesloudpodcast
Subscribe for more in-depth conversations about cannabis genetics, breeding, cultivation, seed production, and the science behind growing better plants.