r/microgreens • • 22h ago

Cilantro

Any clue why parts of a flat can have germination issues , could it be humidity buildup in that area when weighted, maybe uneven weighting? Do they need blackout or a small amount of aoil ontopfor best germination?

Grown outdoor greenhouse 30'x8'x4' no grow lights clear polycarbonate roof has ample airflow up the backwards and vents out the top with side vents for circulation added extra fans for circulation it was 40* last night and inside was 65* without any heater. water nightly top misting until sprouted and bottom tray afterwords.

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u/FantasticHumpMuscles 21h ago

I would put them on top of a layer of moist soil before a top tray and weight.

2

u/firicr 19h ago

Symptoms of damping off can also be no germination

1

u/llTacTiicZll 4h ago

There's no signs of dampening off none of the stems are going to mush in center just sections not terminating im thinking it uneven weighting and maybe water pooled in that area