Establishment and Root Yield of Sweet Potato as Affected by Pre-Rooting of Vine Portions
1995
Geleta Legese (Institute of Agricultural Research, Addis Abeba (Ethiopia))
To improve the establishment and accordingly the yield of middle and basal portions and to study the effect of pre-rooting for replanting, the three portions of sweet potato vines pre-rooted for 0, 3, 6 and 9 days were evaluated at Awasa Research Center. Cuttings from top, middle and basal were made to initiate root by burying about two-third of their length in the moist soil under tree shade. Number of plant established and root yield were noted. Plant establishment was affected by parts of cutting and pre-rooting (P less than 0.05). The highest number of plant established was obtained from the top portion and vines pre-rooted for six days before planting. Root yield was also highly affected by vine pre-rooting (P less than 0.05). The highest root yield was obtained from vines pre-rooted for six days. It is concluded that by pre-rooting vines for six days plant establishment and root yield of sweet potato can be improved.
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