Expression of Mosaic Symptoms on Taro Plants from Dasheen Mosaic Virus Infected Corms

Abstract

Expression of mosaic symptoms on young taro plants (Colocasia esculenta (L.) Schott) from dasheen mosaic virus infected corms was promoted by root cutting or high soil temperature (40C) at sprouting stage. Under field condition the percentage of taro plants showing mosaic symptoms was highest at the beginning of July, then decreased, and increased again after the end of August.