Seed Composition of 66 Weed and Crop Species

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Abstract
The percentage composition of fat, protein, nitrogen-free extract (NFE), fiber, and ash was determined for 50 weed and crop species. Data on 16 additional species were compiled from the literature. Generally, within a family there was a tendency toward a certain type of storage material. Seeds of the Polygonaceae and Gramineae were low in fat, high in NFE and, with few exceptions, low in protein. Seeds of the Leguminosae family were the highest in protein and, with the exception of peanut (Arachis hypogaea L.) and soybean [Glycine max (L.) Merr] were low in fat and high in NFE. Seeds of the Compositae, Cruciferae, Cucurbitaceae, and Solanaceae were high in fat, moderately high in protein, and low in NFE. The data may be valuable in the interpretation of the mode of action or basis for selectivity of herbicides.

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