javascript:void(0)Functional traits measurements
Four functional traits showed significant differences among cadmium
treatments, including A, Chl, Fv/Fm and ILR, regardless of lineage
effect (Fig. 5 ; Table 1) . Among all the six traits,
Fv/Fm was significantly differed between the two lineages
(P <0.01), and affected by the interaction of cadmium and
lineage (Fig. 5 ; Table 1 ). For both genotypes, ILR
increased rapidly with the increasing of cadmium and reached an
exceptional high level at the treatment with high cadmium concentration
(Fig. 5 ). Traits such as A, Chl and Fv/Fm showed significant
decreases as the concentration of cadmium raised in Heze genotype but
not in Panjin genotype. There were not any significant differences
between two genotypes in leaf Cd content under high Cd treatment (Heze,
1.165 ± 0.849 mg/kg; Panjin, 1.875 ± 1.56 mg/kg; t-test, t= -0.687,p = 0.525).