Masters Theses

Date of Award


Degree Type


Degree Name

Master of Science


Agricultural Biology

Major Professor

Nathan S. Hall

Committee Members

Carroll J. Southards, Laurence N. Skold


The purpose of this study was to determine the variability of resistance to root-knot nematodes (Meloidogyne incognita) in soybeans (Glycine max) induced by seed. treatment with ethylmethane sulfonate (EMS). Two soybean varieties, 'Essex' and 'Forrest,' were chosen as the experimental materials mainly on the basis of their distinct level of resistance; 'Essex' is susceptible and 'Forrest' is resistant. The M2 and control populations were grown and tested for nematode resistance in the greenhouse. The number of galls developed on the roots was used to indicate the level of resistance.

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