Table 2.

¹⁰⁹Cd and ⁶⁵Zn translocation to shoots in durum wheat seedlings.

Time (h)	Shoot 109Cd/Root 109Cd		Shoot 65Zn/Root 65Zn
	TL-H	TL-L	TL-H	TL-L
3	0.042 ± 0.002	0.037 ± 0.002	0.263 ± 0.010	0.222 ± 0.013
6	0.068 ± 0.003	0.066 ± 0.004	0.366 ± 0.013	0.369 ± 0.014
12	0.132 ± 0.004	0.117 ± 0.004	0.524 ± 0.009	0.497 ± 0.016
24	0.193 ± 0.011 ***	0.157 ± 0.006	0.609 ± 0.031	0.698 ± 0.023
36	0.241 ± 0.014 ***	0.151 ± 0.007	0.698 ± 0.036	0.679 ± 0.023
48	0.279 ± 0.008 ***	0.158 ± 0.006	0.714 ± 0.019	0.759 ± 0.033
60	0.274 ± 0.006 ***	0.156 ± 0.006	0.737 ± 0.029	0.693 ± 0.031

Intact roots of high (TL-H) and low (TL-L) Cd-accumulating isolines were exposed for up to 60 h (solutions changed every 12 h) in complete nutrient solution containing 50 pM ¹⁰⁹Cd and 0.5 μM ⁶⁵Zn, followed by a 30 min (2°C) desorption in non-radiolabelled nutrient solution containing 50 μM DTPA. Data represent means ± standard errors of 7 replicates. Significant differences between isolines by Student's t-test are indicated with *** (p < 0.001).