PARTHENIUM		Descriptor Site(s): PARL
------

Contains characteristic data on Parthenium accessions.
For additional information on the evaluations, contact
Maria Jenderek at the Natl. Arid Land Plant Genetic Res.
Unit in Parlier, CA (559) 596-2980.  email:
parlmj@ars-grin.gov

Descriptor: BLOOMFIRST     obtype: NUMERIC    CGC: N

Number of days from sowing to 10% of the plants in bloom


Descriptor: BLOOMFULL     obtype: NUMERIC    CGC: N

Number of days from sowing to 50% of the plants in bloom


Descriptor: BRANCHING     obtype: NUMERIC    CGC: YES

Number of branches off the main stem on 5 plants the 2nd
year of cultivation


Descriptor: CHROMNUM     obtype: NUMERIC    CGC: YES

Chromosome number taken from root tips (mitotic) or young
flower buds (meiotic) of 5 different plants


Descriptor: DAYMATURE     obtype: NUMERIC    CGC: N

Day of the year seed matures of 2nd year of cultivation


Descriptor: FLOWERCOL     obtype: CHAR    CGC: YES

Flower color observed at full bloom

Code          Definition
----          ----------
ow            off white
pu            off-white with purple corollas
ye            yellow


Descriptor: IMAGE     obtype: CHAR    CGC: YES

A picture or image

 Value             Freq.   Value             Freq.   Value             Freq.
 ----------------- -----   ----------------- -----   ----------------- -----
 collection s         16   collection s          7   collection s          1
 collection s         11   collection s          5


Descriptor: LATEX     obtype: NUMERIC    CGC: YES

Latex percentage of whole dry plants, 5 plants in the 2nd
year


Descriptor: LEAFLENGTH     obtype: NUMERIC    CGC: YES

Leaf length (cm) along main veins, 3 mature leaves of 5
plants the 2nd year cultivation


Descriptor: LEAFMARGIN     obtype: NUMERIC    CGC: YES

Number of teeth (serrations) on leaf margins, 3 leaves on
5 plants in the 2nd year of cultivation


Descriptor: PLTHEIGHT     obtype: NUMERIC    CGC: YES

Plant height (cm) from soil level to top of foliage taken
on 5 plants the 2nd year


Descriptor: PLTVIGOR     obtype: CHAR    CGC: YES

Plant vigor taken 4 weeks after transplanting to field

Code          Definition
----          ----------
1             good
2             good-to-medium
3             medium
4             medium-to-poor
5             poor


Descriptor: PLTWIDTH     obtype: NUMERIC    CGC: YES

Plant width (cm) from 5 plants the 2nd year of cultivation


Descriptor: RESIN     obtype: NUMERIC    CGC: YES

Resin percentage of whole dry plants, 5 plants in the 2nd
year


Descriptor: RUBBER     obtype: NUMERIC    CGC: YES

Rubber percentage of whole dry plants, 5 plants in the 2nd
year


Descriptor: SEEDCOLOR     obtype: CHAR    CGC: YES

Seed color

Code          Definition
----          ----------
bl            black
br            brown
ot            other colors than black, brown, yellow
ye            yellow


Descriptor: SEEDSIZE     obtype: CHAR    CGC: YES

Seed size, small, medium, large


Descriptor: SEEDYIELD     obtype: NUMERIC    CGC: N

Seed yield per plant in grams from 5 plants the 2nd year
of cultivation


Descriptor: UNIFORMITY     obtype: CHAR    CGC: YES

Uniformity of accession, flower color, plant width, plant
height, leaf size, width, length of 5 plants in the 1st
year of cultivation