Flowering of the Jersey Type Sweet Potato

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Abstract
Two plants of Maryland Golden produced a small number of functional flowers. Vine cuttings were taken from plants grown in the field, planted singly in clay pots, and grown in a greenhouse at 75-85 F during the day and at 60-65 during the night. At the time of transplanting to the field, the stems were 8-9 ft. long, the internodes were short, and the roots had ramified through the soil in the pots, but there were no flower buds. The vines were trained on a trellis to allow maximum light and air. The nitrate and water supply were controlled, to promote rapid development during spring and early summer, and slow vine growth during late summer and fall. After 40 days, NaNO3 was applied, as a side dressing, at the rate of 0.5 lb./plant, and water was supplied biweekly in May and June, weekly in July and Aug., and biweekly in Sept. In Oct., small clusters of comparatively slender flower buds on slender peduncles appeared in the axils of short secondary stems on 2 of the 6 plants. Six cross-pollinations were made between Maryland Golden and seedling L-130; 1 was successful.

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