TY - GEN
T1 - Production of value-added crop of green tea in summer under the shade screen net
T2 - International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions
AU - Hirai, M.
AU - Yoshikoshi, H.
AU - Kitano, M.
AU - Wakimizu, K.
AU - Sakaida, T.
AU - Yoshioka, T.
AU - Nitabaru, J.
AU - Nakazono, K.
AU - Hayashi, M.
AU - Maki, T.
PY - 2008/1/1
Y1 - 2008/1/1
N2 - The shading treatment of tea plants for a few weeks before the harvest enriches tea leaves with free amino acids such as theanine and brings the specially flavor-rich quality of green tea. There are difficulties in producing the flavor-rich green tea in the midsummer under the shading treatment because of the excessively high temperature condition. The evaporative cooling treatment by sprinkling water over tea plants intermittently in the daytime dropped temperatures of leaves and the ambient air by 3°C, and further the radiative cooling treatment by opening the shade screen net during the nighttime dropped the temperatures by 2°C. Thus, these passive cooling treatments were demonstrated effectively to drop temperatures of leaves and the ambient air in the summer production of green tea.
AB - The shading treatment of tea plants for a few weeks before the harvest enriches tea leaves with free amino acids such as theanine and brings the specially flavor-rich quality of green tea. There are difficulties in producing the flavor-rich green tea in the midsummer under the shading treatment because of the excessively high temperature condition. The evaporative cooling treatment by sprinkling water over tea plants intermittently in the daytime dropped temperatures of leaves and the ambient air by 3°C, and further the radiative cooling treatment by opening the shade screen net during the nighttime dropped the temperatures by 2°C. Thus, these passive cooling treatments were demonstrated effectively to drop temperatures of leaves and the ambient air in the summer production of green tea.
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U2 - 10.17660/actahortic.2008.797.59
DO - 10.17660/actahortic.2008.797.59
M3 - Conference contribution
AN - SCOPUS:58049213799
SN - 9789066055810
T3 - Acta Horticulturae
SP - 411
EP - 418
BT - Proceedings of the International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions
PB - International Society for Horticultural Science
Y2 - 20 October 2008 through 24 October 2008
ER -