ON THE "METSUBURE" SYMPTOMS OF TARO CORMS : I. Verification of the Induction of "Metsubure" Symptoms by Calcium Deficiency in Water Culture

概要

論文の詳細を見る
A water culture experiment on taro was conducted with two cultivars and two kinds of culture solution (I and II) with gradient omission treatment of calcium using newly devised culture equipment, in order to investigate their influence on so-called "Metsubure" symptoms. Calcium omission treatment in both culture solutions resulted in a considerable increase of "Metsubure" corms. The results confirmed Miyaji's data and conclusions in respect to the main cause of "Metsubure" symptoms. Solution II proved more suitable for water culture of taro than solution I as regards the ratio of its calcium to potassium content, the moderate renewal intervals and the slower lowering of pH. However, further improvements may be necessary to maintain an adequate range of pH for at least 10 days. The possibility that there might be factor(s) responsible for "Metsubure" corm formation other than calcium deficiency is also discussed.
社団法人日本土壌肥料学会の論文