Abstract

SummaryFour Ipomoea batatas cultivars were observed to develop measurable storage roots at the 6-to 8-leaf stage approximately 3 weeks from planting. The increase in sweet potato storage root weight followed a linear growth pattern with time. It was seen that the attainment of the highest vegetative growth weight preceded the largest storage root weight increase by several weeks, and this time interval was dependent upon the cultivar and the condition of growth. A high degree of correlation existed in each year between the development of the tops and the storage root weight.

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