Figure 2
CO2 assimilation (A ) and photosynthetic
parameters evaluated by the chlorophyll fluorescence analysis of the
change in the internal CO2 concentration (Ci) in rice
leaves. (a) shows the results of A in rice plants grown under
0.06 and 0.6 mM Pi conditions, and (e) shows the results of A in
rice plants grown under 0.6 to 3.0 mM Pi conditions. The results of the
0.6 mM Pi treatment are the same in (a) and (e). (b), (c), and (d) show
the results of Y(II), Y(NPQ), and Y(NO), respectively, in the rice
plants grown under 0.06 and 0.6 mM Pi conditions. (f), (g) and (h) shows
the results of Y(II), Y(NPQ), and Y(NO) in rice plants grown under 0.6
to 3.0 mM Pi conditions. The results of 0.6 mM Pi are the same in (b)
and (f), (c) and (g), and (d) and (h). (i) shows the initial slope ofA toward the increase in Ci under low Ci conditions. (j) shows
the Fv/Fm in rice leaves grown under different Pi application
conditions.
These
results are expressed as mean ± SD (n = 4-6). Different alphabets in (i)
and (j) indicate significant differences among different Pi application
conditions (Tukey-Kramer’s HSD test, p < 0.05).