ABSTRACT
In China and Japan, A. konjac is cultivated for food and is harvested 1 year after planting, when the tubers are small, but sweet and juicy. For industrial purposes, the tubers are harvested after three years. A single A. konjac tuber weighs about 200 g. after one year and 1–2 kg. after three years. Individual A. muelleri tubers may weigh up to 3 kg. depending on the number of growing seasons. The A. muelleri propagated from small tubers is harvested 2.5 years after planting, whereas plants raised from bulbils are already harvestable after 1.5 years. A single A. variabilis tuber can weigh up to 1.5 kg.
