Changes of moisture content in tops and tubers of Dioscorea alata L. in different growth stages
2002
"Toyohara, H. (Tokyo Univ. of Agriculture (Japan)) | Takai, M. | Mashiko, T. | Koshio, K. | Kikuchi, F. | Fujimaki, H. "
"Greater yam (Dioscorea alata L.) is one of the yams and still a staple food tuber crop in parts of developing and self-sustaining agriculture in tropical Asia. Yam tuber contains high moisture content, which changes during growth stages. The present research investigated changes of moisture content in tubers and tops of an early cultivar, which is able to riper in the Kanto Metropolitan area. According to the results, remarkable differences were observed in changes of moisture content of tubers and tops of growing plants. Moisture content of tops gradually decreased throughout whole growth stages, while that of tubers rapidly decreased at the early stage of growth and thereafter tended to reduce gradually. In the earlier stage of growth, tubers_f consisting of young parenchyma seems to maintain higher moisture content. But as the growth of tuber progresses, starch is accumulated and moisture content of the tuber is thought to be reduced. From these results, the changes of moisture content in tubers will be an useful indicator for tuber maturity."
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