Abstract
Abstract ‘Georgia Jet’ sweetpotato [Ipomoea batatas (L.) Lam] transplants were produced in heated beds to compare aged pine sawdust or builders’ sand (traditional media) to fresh pine bark and aged pine bark, or fresh pine sawdust (alternative media), with regard to transplant production and quality over an extended harvest period. At the first harvest, highest transplant numbers (mean 1400 transplants/m2) were obtained with fresh pine sawdust or fresh pine bark. Media effects on transplant numbers at the first harvest agree with the results of an earlier experiment. The greater productivity of fresh pine bark compared to aged pine media and builders’ sand at the early‐harvest (two harvests) in the previous experiment was not confirmed in this experiment. Extended‐harvest (four harvests) transplant production was greater with fresh pine sawdust (2030 transplants/m2) than with aged pine sawdust (1380 transplants/m2), but was not greater than the number of transplants produced with the other media. Transpla...
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