Phalaenopsis Journal Third Quarter 21(1), 2011 | Page 13

The geometric mean answers the question, “If all the quantities had
the same value, what would that value have to be in order to achieve
the same product?” The geometric mean is the nth root of the prod-
uct of the scores or
Geometric Mean =
The inflorescence should be gracefully arching with the flowers well spaced and
well displayed according to the breeding. Novelty types should also be well
displayed according to their breeding.
The Phalaenopsis point scale for AOS Awards
During AOS judging the individual flower parts are judged sepa-
rately using the appropriate scale.

Phalaenopsis Scale

Flower form

General form
15
Sepals 5
Petals
6
Labellum 4

Subtotal 30

Color of flower

General color
15

Sepals & Petals
10
Labellum 5

Subtotal 30

Other characteristics

Size of flower
10

Substance and Texture 10

Habit and Arrangement

of Inflorescence(s)
10

Floriferousness 10

TOTAL 100
The General Scale is used where the flower under consideration
does not meet the Phalaenopsis criteria: toward roundness, fullness
and flatness. The difference with the General Point Scale is that in-
dividual flower segments are not judged separately.
At least half of the flowers should be open so that their arrangement and
presentation can be properly judged.

General Scale
Flower form
30
Color of flower
30
Size of flower
10
Substance and Texture 10
Habit and Arrangement
of Inflorescence(s)
10
Floriferousness 10
TOTAL 100
Personal Observations
In my personal experience of growing and exhibiting Phalaenopsis
for 44+ years, good culture is the secret to receiving AOS awards.
Here are my observations:
1. Improved cultural conditions mean better flower quality
A. Brighter light (more sun) = improved substance
B. Even humidity levels = improved form, better shape
C. Constant root moisture = improved flower textured
D. Adequate feeding = all of the above
2. Cooler growing temperatures (less than 80°F) improve flower
quality by producing:
The number of flowers and arrangement will vary according to the species, or
breeding.
Phalaenopsis - Vol. 21(1), Third Quarter 2011
13