Influence of growth-promoting substances on sprouting of white yam (Dioscorea rotundata) setts

Sett treatment with 2% thiourea induced early sprouting and longer sprouts that led to a vigorous crop. Potassium nitrate had no pronounced effect. The farmers' practice of dipping the setts in cow dung slurry or smearing with wood ash resulted in poor, slow and staggered sprouting. Indole acetic acid had the least effect on sprouting. Copyright © 2003 Whurr Publishers Ltd