Leaf expression pattern by varietal?

art.spliff

Active member

ICMag Donor

• Jan 26, 2019

• #1

Cannabis is often described according to leaf morphology. For example

number of blades or fingers on each fan leaf (1,3,5,7,11)
color
thin or wide
serrations, etc.

How useful is leaf shape in knowing a cultivar? Are leaf prints similar to fingerprints?

 

bsgospel

Bat Macumba

• Jan 26, 2019

• #2

It's good for recognition/description but no, it's not like a finger print. It's an expression from a limited pool of potential alleles.

The entire genome of a plant could be analogous to a finger print but leaf shape and blade count are just small parts of that.

 

art.spliff

Active member

ICMag Donor

• Jan 26, 2019

• #3

A genome is analogous to a genome. A fingerprint is like a leaf print.

 

art.spliff

Active member

ICMag Donor

• Jan 26, 2019

• #4

Resin content, flowering time, yield, nature and strength of effect. These are all parameters which can be described quantitatively and qualitatively to some extent. Characterizing cannabis has subjective and objective components. I'm curious how much information can be gained from leaf prints.

 

MJPassion

Observer

ICMag Donor

Veteran

• Jan 29, 2019

• #5

art.spliff said:

A genome is analogous to a genome. A fingerprint is like a leaf print.

Click to expand...

You may be correct in this assumption but keep in mind that fingerprints are individual to each individual.

I won't say no two are alike but I will say that they cannot be used for variety identification purposes. Prints are NOT heritable. Using such would be akin to using your mothers fingerprint to identify you or your children.

 

Sunshineinabag

Active member

• Jan 29, 2019

• #6

Leaf prints sound fun to play with! Why not take this all further by asking......does the stem of these leaves play a role in this?

 

aridbud

automeister

ICMag Donor

Veteran

• Jan 29, 2019

• #7

Blue strains exhibit leaf variations.

 

B

Betterhaff

Well-known member

Veteran

• Jan 30, 2019

• #8

I used have a collection of pressed cannabis leaves, many were framed and mounted. Lost most of them in a flood.

I was always amazed at the variation.

 

Sunshineinabag

Active member

• Jan 31, 2019

• #9

I opened dads Molly hatchet album one year on,y to see a fuken sativa fan leave that rivals a full size frisbee! This plant was way better off when it was cared for by hippies!

 

art.spliff

Active member

ICMag Donor

• Jan 31, 2019

• #10

MJPassion said:

You may be correct in this assumption but keep in mind that fingerprints are individual to each individual.

I won't say no two are alike but I will say that they cannot be used for variety identification purposes. Prints are NOT heritable. Using such would be akin to using your mothers fingerprint to identify you or your children.

Click to expand...

You are correct, this comparison is more accurate. Leaf shape might help predict the general ancestry of the plant instead of distinguishing individuals.

Such information seems useful to have with or without complementary genetic data.