Productivity and quality of sweet potato roots propagated by mini-cuttings with different trays and seedling ages

ABSTRACT The use of mini-cuttings is an option for obtaining sweet potato propagules excellent quality. objective this research was to evaluate the production and quality roots propagated by in different types trays ages seedlings. Six treatments, resulting from factorial 2x3, were evaluated: two (162 200 cells, with 31 18 mL substrate per cell, respectively) three seedlings (39, 46 53 days after placement trays), a randomized block design, five replications. Seedlings characteristics, evaluated. Higher number dry weight leaves seedling observed tray 162 cells than cells. younger (39 days) had lower leaves, stem, ant total (leaves + stem roots) other ages. There no difference root depending on type tray, regardless age For 162-cell did not affect roots. On hand, 200-cell higher 39 compared days. No differences among treatments titratable acidity, levels sucrose, reducing sugars sugars. It recommended avoid old seedlings, that is, it maximum 43 planting while