right side - manscires

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

Bhuvaneswari, T. V., et. al. "Transient Susceptibility of Root Cells in Four Common
Legumes to Nodulation by Rhizobia."
Plant Physiology

68 (1981): 1144
-
149.

Bloemberg, Guido V., and Ben J. Lugtenberg. "Molecular basis of plant growth
promotion and biocontrol by rhizobacteria."
Current Opinion in Plant Biology

4 (2001):
343
-
50.

Elhuyar Fundazioa. "Drought Reduces Nitrogen
-
fixing In Legumes."
ScienceDaily

4
February 2005. 3 November 2008.

El
-
Sheekh, M. M. "Effect of cobalt on growth, pigments and the photosynthetic
electron transport in Monoraphidium minutum and Nitzchia perminuta."
Brazilian
Journal of Plant Physiology

15 (2003): 159
-
66.

Gad, Nadia, and M. A. Atta
-
Aly. "Effect of Cobalt on the Formation, Growth and
Development of Adventitious Roots in Tomato and Cucumber Cuttings."
Journal of
Applied Sciences Research

2 (2006): 423
-
29.

Gad, Nadia. "Increasing the Efficiency of Nitrogen Fertilization Through Cobalt
Application to Pea Plant."
Research Journal of Agriculture and Biological Sciences

2
(2005): 433
-
42.

Gaunt, John K., and Bruce B. Stowe. "Analysis and Distribution of Tocopherols and
Quinones in the Pea Plant."
Plant Physiology

42 (1967): 851
-
58.

Kandil, Hala. "Effect of Cobalt Fertilizer on Growth, Yield and Nutrients Status of Faba
Bean (Vicia faba L.) Plants."
Journal of Applied Sciences Research

3 (2007): 867
-
72.

Kliewer, Mark, and Harold J. Evans. "Identification of Cobamide Coenzyme in
Nodules of Symbionts & Isolation of the B12 Coenzyme From Rhizobium meliloti."
Plant Physiology

38 (1963): 55
-
59.

Martens, J. H. et. al.
"Microbial production of vitamin B12."
Applied microbiology and
biotechnology

58 (2002): 275
-
85.

Miller, Carlos O. "The Influence of Cobalt and Sugars upon the Elongation of Etiolated
Pea Stem Segments."
Plant Physiology

29 (1954): 79
-
82.

Miller, Richard E., and Robert T. Tarrant. "Long
-
term Growth Response of Douglas
-
fir
to Ammonium Nitrate Fertilizer."
Annals of Forest Science

29 (1983): 127
-
37.

Mylona, Panagiota, et. al. "Symbiotic Nitrogen Fixation."
The Plant Cell

7 (1995): 869
-
85.

Sandalio, L. M., and Et al. "Cadmium
-
induced Changes in the Growht and Oxidative
Metabolism of Pea Plants."
Journal of Experimental Biology

52 (2001): 2115
-
126.

Zhang, Feng, et al. "Plant Growth Promoting Rhizobacteria and Soybean [Glycine
max (L.) Merr.] Nodulation and Nitrogen Fixation at Suboptimal Root Zone
Temperatures."
Annals of Botany

77 (1996): 453
-
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