Effect of mutilation of wheat seeds on growth and productivity
1939
Sando, W.J.
Whole kernels and germ-end sections of half and one-third kernels of Dawson and Nittany winter wheats were planted in rows in the field at the Arlington Experiment Farm, Arlington, Va. Whole kernels were superior to half and one-third kernels in germination and in subsequent plant survival, number of culms per plant (with one exception), total weight per plant, and grain yield per plant. Half kernels likewise were superior to one-third kernels except in one experiment involving too few one-third kernels. Except in seed germination and in percentage of seeds producing mature plants, half kernels, the cut ends of which were capped with paraffin, were superior to unparaffined half kernels. Whole, half, and one-third seeds planted in flats containing sterilized and unsterilized soil in the greenhouse in general confirmed the results of the field plantings, although the differences were not so marked owing in part to the crowded condition of the plants which prevented optimum development. In the unsterilized soil the plants from one-third seeds appeared to be slightly injured by soil-borne organisms.
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