plumule or radicle?

[Sanips]

I don't know what I'm seeing in this Parajubaea torallyi var. microcarpa lol. What is that little thing that has emerged from the seed petiole?

@Pal Meir , I'll invoke you! Please 

Edited March 8, 2016 by Sanips

[Pal Meir]

I don’t know, too: If it is growing upward (?) it may be the cotyledonary sheath or a plumule, if downward a radicle …

[Sanips]

Mmm could It be a radicle running away from the bottom heat?

[Pal Meir]

Or when it is too dry downward …?

[Sanips]

2 minutes ago, Pal Meir said:

Or when it is too dry downward …?

it could be that, thanks!

[Sanips]

Finally, it seems to be a plumule