Date of Award:

1935

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Agricultural Systems Technology and Education

Advisor/Chair:

D. C. Tingey

Abstract

Bunt is a serious disease of wheat found in nearly all weat-growing countries of the world. In India the disease is more severe in the northern provinces than in the central and southern provinces as the temperature during planting time is favorable to the germination of the fungous growth in the northern part. In the central or southern parts, this is not the case. In the United States this disease causes heavy annual loss. The amount of smut in a field, or the percentage of smutted heads, is generally taken as an index of the reduction in yield or loss from the disease, i.e., with 10 percent of all heads smutted, the loss would be estimated at 10 percent. It seems probable, however, that the loss is not quite equal to the percentage indicated by the smutted heads, since smutted plants are generally weaker than adjacent healthy plants which consequently stool more heavily and tend to occupy the space. With higher percentage of smut, the less or reduction in yield is more nearly equal to the percentage of smutted heads.

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