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Conv3rgence

Strange colour seedlings

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A couple of my seedlings look strange, I was wondering if I need to pull them out and dispose of them, graft them, or let them be.

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The white seedling at the middle top, with the fleck of green at his tip. Hard to see but look closely, he's healthy shape and size, but white. Scopulicola, about 3 months old I guess. Still in humidity container, natural light, no bottom heat.

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The brown/dark green seedling in the middle, next to the others. Ariocarpus Retusus, about 2 months old. Still in humidity container, under fluoro lights, bottom heat still going with a mat.

Thanks guys

Edited by Conv3rgence
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Graft the white one ASAP!! It's either albino or variageted, and could never survive on it's own roots.

Not sure what's going on with the Ario, if it's still firm and healthy, graft it as well, just to be sure.

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Damn right - I don't think I've even heard of a variegated scop!

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Albino or sunburn. If it´s not grafted with a couple weeks, it will starve because it can t produce chlorophyll.

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The Ariocarpus - a darker green than its compatriots - just natural variation.

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Mate what sort of mineral substrate have you got in there?

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Mate i think Eg is onto something with the sunburn or at least some sort of hyper-sensitivity. I get these reasonably often in batchs of seeds( maybe my germination technique needs tweeking ) Had this happen with a couple of crosses but they all came good. My thoughts follow the previous thoughts... Graft it anyway... Nothing to lose everything to gain☺

Here is a pic of zellys scop x red grandi cross( this one was very kindly donated to me Edited by Master B

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Have a look at this bad boy yeti! Not mine unfortunately.

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Master B, heat damage can look like that too. It´s pretty typical that heat does not kill all the seedlings, so it happens that you sometimes have lone seedlings in between the healthy ones just turn white and turn into mush after that. I mean, if they already look white when they germinate, it´s probably an albino but heat, sun and chemicals can cause the same.

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sun and chemicals can cause the same.

Which chemicals? :)

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Change, fertilzer for example. It burns the seedlings away like acid if the concentration is too high. And if you apply alcohol in too high conentrations (such as 99%). it can kill seedlings. Old plants are usually fine but whenever I spray my seedlings with methanol, I reduce it down to 50%.

Edited by Evil Genius

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