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jonniesilvs

Seedling's cotyledons, possible fungus?

JonnieSilvs
12 years ago

A few months ago, my mother's Hibiscus rosa-sinensis set seed, and I managed to convince her to let the less-than-beautiful seed pod mature on the plant. I got 16 seeds.

I planted a few of them under a 150 watt hps lamp and they've been doing great. By now, each plant has a few "true" leaves.

However, I've noticed that on two of the seedlings, the cotyledons are showing some discoloration around the edge.

Here is the worse of the two: (the color is messed up because of the hps' limited spectrum)

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Ignore the scarring in the center of the cotyledon, that is from a small insect problem that I've taken care of.

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I'm worried about the possibility of it being a fungal infection that I wouldn't want to spread to the others ( I only have so many seeds). However, as it's only developed on the cotyledons, could it just be the plants' natural progression?

Can anybody identify this? Am I being excessively worried?

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