Studies to Establish the Rational Way to Pluck the Tea Plant in Cold Locality. : 1 On some causes of the decline in yield and manufacturing quality of tea leaf brought about by plucking by shears.

Abstract

These examinations were performed to make clear the effects of shears plucking, upon the yield and the manufacturing quality of tea and also to know the causes of these effets. The results are as follows;- (1) Shears plucking reduced the yield by 30%, as compared to hand plucking. And the manufacturing quality of tea plucked by shears was also inferior. (2) The causes were recognized as follows. a) In shears plucking, especially the espalier training before sprouting adversely affected upon the form and the nature of the tea leaves. b) The use of shears itself adversely affected upon the quality of green leaf and manufacturing of tea. c) The vigor of plant was declined by repeating the shears plucking.