Cypher#6 and #7 PRIMARY and SECONDARY LIMITING FACTORS ON YIELD

A=Light Intensity
B=Nutrient Mix
C=Irrigation Schedule
D=Growing Medium
E=Water Source
F=Variety
G=Flowering Time
H=Venting
I=Insects/Vermin
J=Unexpected Equipment or Plant Failures
K=Fungus/Mold
L=Gardener Laziness
M=Temperature/Humidity
N=Electrical or Power Company Problems
O=Unattended Garden During Long Holiday
P=Paranoia
Q=pH Control
R=Other People
S=No Limiting Factors (I'm satisfied with the yield)
T=Harvested or Flowered Too Soon or Canopy Not Full
U=Container Size
V=Growth Control/Pruning
W=This was my First Crop
X=Experiment(s) Conducted
Y=I don't know the limiting factor & NOT satisfied with the yield
Z=Reservoir Capacity and related problems
-=N/A