Effect of boron treatments on boron distribution and fresh leaf yield of tea plant

A two-year fixed field experiment was designed in Artvin, Turkey, with the aim of determining the effect of soil and foliar boron treatment on fresh leaf yield, shoot length, and also the transport and distribution of boron in the shoots of the tea plant. The experiment was conducted in a domestic producer’s tea garden indicating boron deficiency in Arhavi district of Artvin. In the experiment, 400 g B da -1 to the soil and 400 mg B L -1 to the leaves of the tea plant were applied in a liquid form. DOT (Disodium Octaborate Tetrahydrate, Na 2 B 8 O 13 .4H 2 O) with 20.8 % B was used as a boron source. At the end of the experiment, it was determined that soil and foliar boron treatment caused a substantial increase in the fresh leaf yield, the shoot length, and also the boron concentration of the shoots of the tea plant. However, the boron concentration of the leaves at the tip of the shoots was still under the critical level.