To estimate the uptake of radiocesium (¹³⁷Cs) by tea plant roots, 1-year-old rooted tea cuttings (Camellia sinensis L. cv. Yabukita) at the time of bud opening were cultivated hydroponically for 27 days in pots containing nutrient solutions with or without ¹³⁷CsCl (600 Bq mL⁻¹). Total ¹³⁷Cs radioactivity of whole tea plants were 6.1 kBq g⁻¹ dry weight. The plant/solution ¹³⁷Cs transfer factors of different tissues were in the range of 2.6 (in mature leaves) to 28.2 mL g⁻¹ dry weight (in roots), which were lower than those reported in wheat and spinach. In total, 69% of ¹³⁷Cs remained in roots and 31% was transported from roots to shoots. The results indicated that ¹³⁷Cs was preferentially translocated to new shoots, which are used for manufacturing tea, over mature leaves.

为了估算茶树根部对放射性铯（¹³⁷ Cs）的吸收，将一岁的生根茶渣（Camellia sinensis L. cv。Yabukita）在芽开放时在装有营养液的盆中水培27天。或没有¹³⁷ CsCl（600 Bq mL ^-1）。整个茶树的总¹³⁷ Cs放射性为6.1 kBq g ^-1干重。不同组织的植物/溶液¹³⁷ Cs传递因子在2.6（成熟叶中）至28.2 mL g ^-1干重（根中）的范围内，低于小麦和菠菜中报道的那些。总共^137个中的69％Cs留在根中，有31％从根转移到芽。结果表明，与成熟叶片相比，¹³⁷ Cs优先转移到用于生产茶的新芽上。