Some Mammillaria seedlings

[fatich]

1- Mammillaria bertholdii
2- Mammillaria lasiacantha subs. eggregia SB30
3- Mammillaria gasseriana SB447
4- Mammillaria lasiacantha SB1063

[ragamala]

:-) How old are these?

[rodsmith]

They're looking good, although the ones in the first picture appear to be a bit etiolated.

[fatich]

:-) How old are these?

They around 7 months old.

[Terry S.]

This is the first time that I have seen an image of M. bertholdii seedlings. I am fairly sure that they are not etiolated Rod, just look at the red pigmentation. This must be their natural development which is very distinctive and one can already see the beginnings of their long tubercles. Was there any problems with seed germination?

[KarlR]

As Terry says, the bertholdii seedlings are not etiolated. They look like that. It takes a while before they pull down a bit and start growing more flush with the surface. I had about 50% germination without any treatment.

[fatich]

This is the first time that I have seen an image of M. bertholdii seedlings. I am fairly sure that they are not etiolated Rod, just look at the red pigmentation. This must be their natural development which is very distinctive and one can already see the beginnings of their long tubercles. Was there any problems with seed germination?

After chipping the hilum i sow them, from 6 seeds 5 germinated, there were no problem with the germination.

[Aiko]

What was your source for the M. bertholdii seeds?

[ragamala]

This is the first time that I have seen an image of M. bertholdii seedlings. I

viewtopic.php?f=1&t=167074&p=273515&hil ... ii#p273515

[fatich]

What was your source for the M. bertholdii seeds?

They are from,
Cactus-zhiv.com