Morpho-anatomical changes and physio-biochemical responses of Carex siderosticta under water stress.

siderosticta under water stress Correlation analysis showed strong synergy among Chl a, Chl b, total chlorophyll, and carotenoids, and all of these pigments exhibited highly significant positive correlations with the photosynthetic parameters A n , g s , and T r ( p ≤ 0.01) ( Figure 11a ).

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Under drought, the leaf CAT activity in the LD and MD was 2.85-fold and 4.29-fold of CK, respectively, whereas SD returned to the CK levels; root CAT activity in the LD, MD and SD was 3.89-fold, 3.27-fold and 2.58-fold of CK, showing a decreasing trend ( Figure 7c ).

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