Indoor Yield-O-Rama

Analysis of Grower's Observations

Looking first at the grower-perceived primary limiting influences on crop yield, we see that only one perception bears any significant statistical relationship to crop yield: the perception that there were, in fact, no limiting factors. This certainly makes sense, and suggests that many growers probably have an accurate perception re: limiting factors.

Cypher 6 - Primary Limiting Factor
Correlation Significance
A=Light Intensity
-.148 .068
B=Nutrient Mix
-.130 .109
C=Irrigation Schedule
-.073 .369
D=Growing Medium
-.027 .737
E=Water Source
-.004 .957
F=Variety
-.046 .573
G=Flowering Time
-.106 .192
H=Venting
.000 1.000
I=Insects/Vermin
.098 .229
J=Unexpected Equipment or Plant Failures
.069 .394
K=Fungus/Mold
.034 .678
L=Gardener Laziness
-.019 .817
M=Temperature/Humidity
.073 .371
O=Unattended Garden During Long Holiday
-.046 .569
Q=pH Control
.031 .701
S=No Limiting Factors (I'm satisfied with the yield)
.341** .000
T=Harvested or Flowered Too Soon or Canopy Not Full
.039 .628
U=Container Size
-.095 .240
V=Growth Control/Pruning
-.093 .252
W=This was my First Crop
.018 .828
X=Experiment(s) Conducted
-.138 .089
Y=I don't know the limiting factor & NOT satisfied with the yield
-.053 .513
_-Not Available
-.083 .309

** Correlation is significant at the 0.01 level
* Correlation is significant at the 0.05 level
Number of records=153

Looking next at the grower-perceived secondary limiting influences on crop yield, we see that the perception of insufficient light intensity bears a significant statistical relationship to crop yield: the perception that there was insufficient light does, in fact, correlate with reduced crop yield. Interestingly, growers who tended to complain about pests/vermin actually show a statistically positive correlation with crop yield, indicating that their crop yields are possibly actually above average. However, we must await the final regression model in order to see if this phenomenon holds up.

Cypher 7 - Secondary Limiting Factor
Correlation Significance
A=Light Intensity
-.193* .017
B=Nutrient Mix
-.088 .278
C=Irrigation Schedule
-.039 .629
E=Water Source
.042 .609
H=Venting
-.035 .663
I=Insects/Vermin
.165* .042
L=Gardener Laziness
-.053 .516
M=Temperature/Humidity
.011 .892
Q=pH Control
.059 .470
S=No Limiting Factors (I'm satisfied with the yield)
.087 .284
T=Harvested or Flowered Too Soon or Canopy Not Full
.082 .316
U=Container Size
-.022 .791
V=Growth Control/Pruning
.006 .942
W=This was my First Crop
-.113 .164
X=Experiment(s) Conducted
.051 .528
Y=I don't know the limiting factor & NOT satisfied with the yield
-.004 .957
_-Not Available
-.037 .648

** Correlation is significant at the 0.01 level
* Correlation is significant at the 0.05 level
Number of records=153

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