as 1.782 (p = 0.0038). Figure 2. This graph shows the average stomatal density for the sun and shade leaves of each tree.Stomatal Density050100150200250300350Liriodendron tulipiferaFagus grandifoliaSpecies NameStomatal Density (stomata/mm2)en stomatal dathe Fagus grandifolia is 205.4. A t- tewGraph of Species vs. Stomatal Density for Sun and Shade Leaves0100200300St matDensitacsa prse bele quru fagrTree SpeciesoalySunShade9
Figure 2 shows the average stomatal density of the sun and shade leaves for Acer ccharum, Prunus serotina, Betula lenta, Quercus rubraand Fagus grandifolia. A t-test was calculated for Q. rubra and it was found that leaves developing in a shade nvironment have a statistically greater stomatal density than the leaves in the sun. In the t-test e t stat value was 2.594 while the t critical value was 2.132 (p = 0.03). Another t-test was done sing P. serotinaand it was found that there is no significant difference between leaves eveloping in sun or shade areas. In the t-test the t stat value was 0.677 and the t critical value was 2.132 (p = 0.268). Figure 3 shows the percentage of chlorophyll transmittance and standard deviation of the sun and shade leaves of the Quercus rubra. This graph relates to the hypothesis saying that the Quercus rubra(red oak) in areas with a high amount of light will have a higher amount of chlorophyll than those in areas with a low amount of light. The standard deviation for the sun leaves was 8.6417591, while the standard deviation for the shade leaves was 3.606245. saethudChlorophyll Transmittance and Light of Quercus rubra(Rob)45025SunShadeLight5101520303540Chlorophyll Transmittance (%)10
igure 4. This scatter plot represents the comparison of soil moisture to stomatal density for the Quercus rubra(red ak), Prunus serotina(black cherry), and Fagus grandifolia(American beech) Graph of Soil Moisture vs. Stomatal Density Fo010020040000.2Stomata30000.40.6Soil Mosture (percentage)l DensPRSEQURUFAGR50600ityLinear(PRSE)Linear(FAGR)Linear(QURU)11
Figure 5 represents the data collected on the stomatal density to its distance from the spring for the wer water Stomatal Density of Fagus GrandifoliaCompared to Distance from Water (Kendra)050100150200250300350400<10 meters>10 metersDistance from waterStomata Density (stomata per mm2)Fagus grandifolia. Figures 4 and 5 relate to the hypothesis that leaves of trees that grow in areas with higher water availability will have higher stomatal density than those growing in areas with loavailability. The standard deviation for the leaves that were closer to water was 114.4884. The standard deviation for the leaves that were further from water was 118.6786. 12
Stomatal Density of Benta leantain high and low temps250300050100150200high templow tempTemperaturestomtal densitySeries1Figure 6 shows the average stomata density in high and low temperatures. The standard deviation for low temperature is 11.021 and high is 84.407.
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- Spring '16
- Photosynthesis, Hicks, stomatal density, Fagus grandifolia