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13 4 . 6 1 , 4.5 Log Leaf Surface Area A (mm^2) 3.5 N 1.1 0 0.2 Log Mass of Shoot A (g) Figure 1. The X-value measured in g is relative to the...
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IMG-6028.jpgIMG-6027.jpgIMG-6026.jpg


  1. Examine the scaling factors for the relationships for each plant. Remember, we are looking at linear trendlines, not power trendlines! Determine whether the relationships are isometric or allometric.
  2. Reflect on what the growth pattern is if the scaling factor does not reflect isometry. For example, does respiration rate increase faster or slower than your size or mass measure? How does growth over time explain this? Explain a rationale for each of the plant species measured
  3. Are the scaling factors for the two plants similar or different? Reflect on how this might explain similarities or differences in the metabolic physiology of the two plant species? Explain.
  4. What environmental and/or ecological factors might explain the scaling factors you calculated between respiration and growth measures for each species?
  5. Can you think of any factors that might influence the scaling factors calculated, which might introduce error or inconsistency?

IMG-6026.jpg
2 :
13
4 .
6 1 ,
4.5
Log Leaf Surface Area A (mm^2)
3.5
P..........
. ....
w
2.5
N
1.5
0.5
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
0.1
0
0.1
0.2
Log Mass of Shoot A (g)
Figure 1. The X-value measured in g is relative to the Y-value measured in mm^2 by the leaves found on the dwarf
fothergilla shoot. Data points are in log transformed values. Linear trendline: Log (Leaf surface area A) =
0.3565*Log(mass of shoot A)+3.6528
Log (CO2 production rate A, ppm/sec)
-0.2
-0.4
-0.6
-0.8
. ............
. ......................... ....................."
1.2
. . . . . .........
-1.4
-1.6
-0.7
-0,6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
Log (mass of shoot A, g)
Figure 2. The X-value measured in g is relative to the Y-value measured in ppm/sec show the relationship between
the entire shoot mass of dwarf fothergilla and shoot respiration. Data is shown in log transformed values. Linear
trendline: Log (CO2 production rate A) =0.8463*Log (mass of shoot A)-0.838
ited States)
O
Ei
W
IMG-6027.jpg
Log (CO2 production rate A ,ppm/sec)
O
-0.2
0.4
-0.6
-0.8
-1.2
-1.4
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Log (surface area A, mm^2)
Figure 3. The X-value measured in mm^2 is relative to the Y-value measured in ppm/sec show the relationship
between the surface area of the dwarf fothergilla leaves and respiration rate. Data is shown in log transformed
values. Linear trendline: Log (CO2 production rate A) - 0.0104* Log (surface area A) - 1.0211
4.5
Log(leaf surface area B, mm^2)
3.5
3.
I
2.5
N
0.5
-0.6
2 9-0.4
-0.2
0.2
0.4
0.6
Log (Mass of shoot B, g)
Figure 4. The X-value measured in g is relative to the Y-value measured in mm 2 by the basil leaves found on the
shoot. Data points are in log transformed values. Linear trendline: Log (Leaf surface area B) - 1.0046*Log (mass of
shoot B) +3.5543
lish (United States)
O Ei
W
DIL
X
PrtSon
F2
F3
F4
F5
F6
F7
IMG-6028.jpg
2
4
5
Log (CO2 production rate B, ppm/sec)
0.1
0.2
. . ..........
-0.3
-0.4
.....................................................;"
0.5
-0.6
-0.7
..... ................
-0.8
0.9
0.6
-0.4
-0.2
0.2
0.4
0.6
log( mass of shoot B, g)
Figure 5. The X-value measured in g is relative to the Y-value measured in ppm/sec show the relationship between
the entire shoot mass of basil and shoot respiration. Data is shown in log transformed values. Linear trendline: Log
(CO2 production rate B) =0.6366*Log (mass of shoot B)-0.5023
Log ([email protected] production rate B, ppm/sec)
0
0.1
- 0.2
-0.3
..... ... . .........
-0.7
0.8
ET
0.9
0.5
1.5
2
2.5
3
3.5
4
4.5
Log (leaf surface area B, mm^2)
Figure 6. The X-value measured in mm^2 is relative to the Y-value measured in ppm/sec show the relationship
between the surface area of the basil leaves and respiration rate. Data is shown in log transformed values. Linear
trendline: Log (CO2 production rate B) - 0.5529* Log (surface area B) - 2.4628
glish (United States)
O Ei
W

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