Abstract
Inheritance of dinitroaniline resistance was investigated in F2 and F3 populations of crosses between a resistant green foxtail and three foxtail millet cultivars (Se-taria viridis and Setaria italica, respectively). Resistance was assessed on the basis of inhibition of root growth of seedlings in trifluralin solution. Results indicated that resistance was recessive but did not give a monogenic segregation ratio in F2. Distortion of segregation or two linked loci (r =.23) might account for only 15% resistant plants in F2 progeny. Quantitative analysis showed that part of the response to trifluralin is under the control of further minor genes.
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