Vine cuttings technology in food yam ( Discorea Rotundata) production

This study was designed to evaluate the rooting and tuberization (mini tubers) potentials of vine cuttings of six genotypes (TDr 131, TDr 335, TDr 97/00925, TDr 98/01230, TDr 98/ 00718 and TDr 97/00940) of white yam (D. rotundata) using plant hormone. Vine cuttings from 120 days old plants were collected from the six genotypes for root formation. Three to four nodes leafy vine cuttings were prepared and the lower portion of these nodes were wounded with a clean razor blade and then dusted with 1.0% Indole-3 butyric acid (IBA) powder in order to promote rooting. The vine cuttings were sampled for mini tuber formation three months after transplanting. There were no significant differences (P< 0.05) among the genotypes for both mean root per vine and the mean root length of the cuttings. There was a significant difference (P< 0.05) in the total mini tubers number and the weight of mini tubers which ranged from 8.3 to 82.95 and 1.9 g to 6.9 g respectively.

Author(s): Muamba J. Kabeya*, Uzoma C. Kabeya, Berhanu D. Bekele and H. Kikuno

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