Fig. 3. Chlorophyll fluorescence parameters from untrans-formed and transgenic plants. The imagens show a decrease of chlorophyll a fluorescence parameters in almost all genotypes analyzed. (a) Maximum quantum efficiency of photosystem II - ratio of the variable and maximal fluorescence (Fv/Fm). (b) Relative electron transport (ETR). The asterisks represent a significant difference by the T test (P < 0.05).
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