Science Fair Projects

Factors Affecting Nodule Formations in Legumes

Abstract

The objective: Rhizobium leguminosarum bacteria share an important relationship with legumes. Rhizobium bacteria fix nitrogen for a legume plant and in return, the bacteria get shelter and nutrients in a nodule. The purpose of the experiment was to find what factors are important in the formation of nodules on legumes.

Methods/Materials

Legumes were planted in a community garden and in the laboratory with potting soil, vermiculite, and vermiculite with inoculated rhizobium. At termination, the roots were searched for nodules. The material used were: 12 pots, 2 bags of vermiculite, a bag of potting soil, 36 snow pea seeds, Bacteria (Rhizobium leguminosarum) from the Carolina Biological Supply Company (Catalog ER-15-5270, non-pathogenic), nutrient broth, an inoculating loop, and a Bunsen burner.

Results

There was an average of 12 nodules in community garden plants, 3 for potting soil, and none in both the vermiculite with and without bacteria.

Conclusions/Discussion

The presence of rhizobium bacteria is a factor affecting nodule formation. The results from my field observation and from the positive control group indicate that the factors affecting the formation of nodules, is not just the presence of the Rhizobium bacteria, but also the time factor, temperature factor, as well as the nutrient factor and others.

The project was to find what factors such as time, nutrients, and moisture, affect nodule formation in legumes.

Science Fair Project done By Raman V. Nelakanti

 

Related Projects : Better Power, How Does Seawater Affect the Corrosion of Iron, Does Acid Make Steel Rust Faster, How to Increase the Speed of a Reaction, Electricity You Can Eat, Determining the Relationship between a Water Sample's Temperature and Its Turbidity Level, The Power of Oxygen, Boiling Point, What Voltage Is Needed for Steel to be Protected, Can Electricity Affect the Hardness of Water, Fire Burning, Wet Heat: Can You Cook with Chemical Reactions, Stranding and Looping, Fuel for the Future, Elucidation of Molecular Structure and Bonding by Viscosity, Innovative Method to Reduce VAT Dyes Electrolytically, Effects of Ultraviolet Radiation on Crystal Growth, Testing Known Antioxidants for Inhibition of Peroxidation, Burn That Fat, PPAR Delta Crystallography

 

<<Back To Topics Page........................................................................................>> Next Topic

 

 

Copyright © sciencefairprojects.co.in 2013 through 2015