new term suggestion: cauline & basal axillary branches

[Pankaj Jaiswal]

Hi Everyone,

We had a discussion on this sometime back but the terms never made it to 
the plant structure ontology. Here is it again.

new term : cauline axillary branch
def: an axillary branch that forms  above ground level and on an 
elongated (cauline) internode

new term: basal axillary branch
synonym: tiller, primary tiller, primary basal axillary branch, first 
order basal axillary branch
def: An axillary  branch that forms at ground level, generally from a 
non elongating (basal) internode

new term: second order basal axillary branch
synonym: secondary tiller, secondary basal axillary branch, secondary 
order basal axillary branch
def: An axillary  branch that forms at ground level, generally from a 
non elongating (basal) internode of the first order basal axillary branch

new term: third order basal axillary branch
synonym: tertiary tiller, tertiary basal axillary branch, tertiary basal 
axillary branch
def: An axillary  branch that forms at ground level, generally from a 
non elongating (basal) internode of the second order basal axillary branch

Suggested structure in ontology.
[i] = instance of

--PO:0009006 : shoot
--[i]--PO:0006343 : axillary shoot (this has a synonym tiller)
-------[i]--PO:new : cauline axillary branch
-------[i]--PO:new : basal axillary branch
-----------[i]--PO:new : second order basal axillary branch
-----------[i]--PO:new : third order basal axillary branch


PO:0006343 : axillary shoot term has a synonym "tiller" that will be 
moved to PO:new : basal axillary branch.

PO:0006343 : axillary shoot can then have a new synonyms "branch" and 
"ratoon"

Ratoon:  A shoot sprouting from a plant base, as in the banana, 
pineapple, sugar cane, bamboo, or in rice after the first harvest where 
basal portion of plant is still attached to ground and can generate new 
tillers/axillary shoots.


If you would like to see the discussion Toby and I had on this issues 
please see http://ascus.plbr.cornell.edu/~pankaj/branch/branch.txt

The tillering patterns in rice are called by primary, secondary and 
tertiary names. Please see the scanned document from an IRRI publication
http://ascus.plbr.cornell.edu/~pankaj/branch/rice-tillering.jpg


-Pankaj