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Changes in chloroplast pigments, chlorophyll a (Chl a, A), chlorophyll b (Chl b, B), and carotenoids (Car, C) for fertilized (+P) and non-fertilized (–P) treatments with and without water. Means followed by different letters indicate significant differences (P ≤ 0.05) among the four treatments according to Duncan’s test. Vertical bars show ± SE.
