抄録
(1) The authors made studies of tea tree in '59 and '60 to know some of the physiological influence caused by third-crop plucking in cold locality. The obtained results are as follows. (2) Owing to the plucking for three times a year, the tea tree was inferior to the others, without the third-crop plucking, in the following; 1) Since the third-crop plucking, the autumn bud did not grow up sufficiently, till the next spring throughout the winter. 2) The sprouting in the next spring was so delayed that tea shoots could not grow up thoroughly before the ordinary first crop season 3) The green leaf was inferior in most of the characteristics. (3) According to the above-mentioned reasons, the third-crop plucking from the middle to the last of August, is very irrational in this district.
