Future Studies
•
Use other leguminous plants that
produce food:
–
Beans
•
Chemically analyze seeds
•
Determine the effects on the
nutritional value of plants
•
Different concentrations of solution
could be used
Bibliography
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59
Discussion
Conclusion
•
The data demonstrates that cobalt sulfate and vitamin B12 were both
significantly more effective than water.
•
The presence of rhizobium did not affect plant growth.
•
The data also demonstrates that water significantly raised germination
rates for the plants.
•
This supports the work of Gad and Kandil.
•
Limitations
–
Vitamin B12 had an outlier in each trial
–
Human error when measuring and planting seeds
–
Germination rates affected the overall mean growth
•
Cobalt Sulfate was just as effective as Vitamin B12 in stimulating plant
growth.
•
Both Cobalt Sulfate and Vitamin B12 lowered germination rates for the
plants.
•
Cobalt Sulfate is unhealthy for the microorganisms that live in the soil.
•
The data supports the alternate hypothesis.
http://plants.usda.gov/java/profile?symbol=pisa6
http://www.energyfarms.net/files/images/peas.jpg
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