Effects of Water Temperature on the Early Growth and Development of Taro

J. R. Pardales, Jr., F.M. Melchor and R.S. de la Peña


Taro (Colocasia esculenta (L) Schott) plants exposed to 28°C water temperature exhibited better plant growth and leaf area development, more and longer roots and higher dry matter content than those grown at other water temperature, i.e., 18-22°C (normal) and 37°C. Inferior vegetative growth and least and shortest roots were noted in plants grown at 37°C. In a follow-up experiment conducted using 2 taro varieties, production of higher number and significantly longest roots was found to be greatly favored by a temperature range of 27-29°C. Reduction in both number and length of roots occurred when temperature became higher but drastic effect of temperature was very apparent at 36-38°C. Temperature beyond 29°C seemed to be detrimental to root growth in newly planted taro. At 36-38°C, roots of the 2 varieties used did not grow beyond 2 cm.

Keywords: Taro Colocasia esculenta. Bun Long. Lehua Maoli. Water temperature. Vegetative development. Root development. Initial growth.

Annals of Tropical Research 4(4):(1982)
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