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Figure 4


Fig. 4. Effect of time of N treatment before submergence on (a) chlorophyll a and chlorophyll b content of FR13A ({square}) and IR42 ({blacksquare}) and (b) chlorophyll a/b molar ratio of the not-submerged and submerged plants at 3 d after submergence. Data are means of five replications in Experiment IB and vertical bars are LSD0.05 values.