what's the meaning...

[moria0672]

...in orchid naming "x self" and "x sib."
Isn't for me really clear. I've read the article "orchid naming for dummies" but there's no indications about these two things.
I wait some new!!!!

[terrestrial_man]

x self means it was crossed (x) with itself
x sib means it was crossed with a sibling of it, presumingly an x self sibling.

[Heather]

In other words, 'x self' means it was pollinated from one flower on the plant to another flower on the same plant. 'x sib' means pollen was taken from one plant and placed on another plant from the same flask, but with the same parentage.

[moria0672]

Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[Mahon]

Originally Posted by Heather

'x sib' means pollen was taken from one plant and placed on another plant from the same flask, but with the same parentage.

Little clarification (or my best attempt);

'x sib.' is crossing two plants that are "siblings", or plants with the same exact parents, produced in the same pod.

-Pat

[David Morris]

Correct on the by self and by Sib. ID's and even I goof them up.
Here is a brief explanation of various markings you will see on tags.
We will for the sake of argument consider the selfing of a wild collected Paphiopedilum venustum (So we don't anger the leave it alone envirenmentalist we will assume the plant was collected before 1970). The offspring could read on the tag Paph. venustum `Wild' X self. Now let us assume that those plants have grown up and that we have crossed 2 different ones in that group together. Now the tag could read Paph. venustum (`Domestic' X `Houseplant') Sib. cross or Paph. venustum (`Domestic' X `Houseplant') F2. If we were too take their offspring and cross them together we could say it was F3. If we were to take the protocorms (tinybabies in flask) and treat them with a Chromosome modifier such as colchicine or oryzaline and than had the resulting offspring chromosome counted to determine polyploidy we might call it Paph. venustum (`Domestic' X `Houseplant') 4n if the plant indicated a doubling of chromosomes or a tetraploid. If we than crossed that back to the mother jungle plant we could call it Paph. venustum (`Wild' X `Fat boy'4n) Outcross 3n.

[cb977]

Thanks for that lesson, David

I always wondered what the 4N stuff was about

[Ross]

You have me scratching my head here! I have no clue what you are talking about and I thought I understood genetics!

[David Morris]

Perhaps you have a specific question. Keep in mind that the regular rules for other plants are not followed by Orchid people. Frankly I find the orchid rules have a better understanding of where their plants have come from and what has been done to them.

[Mahon]

Thansk for all the info! I have personally never seen the generation denoted on a tag or barcode before, but would be good to keep in records. Ploidy is important to keep on the tag though, don't want to achieve aneuploidy...

-Pat