92.
Yatazawa, Me.
ct al
,
THE ABSORPTION BY PLA!ITS OF UNSEPARATED FISSION PRODUCTS
DERIVED FROM THE HYDROGEN BOMB DETONATED IN. THE SPRING
OF 195% AT BIKINI ATOLL.
(cont'd.)
Noncontaminated rice plants were cultivated in the
radioactive solution produced from Bikini ash for 20
days. Then the absorption by plants of radioactive
elements was examined by chromatographic exchange.
From the elution curve and ratio of radioactivity of
each separation group, it has become clear that rice
plants accumulated larger parts of fission products
in their roots and selectively absorbed and translocated radioactive alkaline earths in their shoots
even i: the absorption ratio of Bikini fission proe
26
é
+
N
g
Fees
ey
ye
ww
re)
ducts was comparatively small.