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The effects of NO application on the anatomical shoot, branch and leaf sections of two contrasting watermelon (Citrullus lanatus var. lanatus) genotypes a KAR 98 (tolerant one) and b KAR 147 (susceptible one) (scale 50 µm). Control no drought stress no SNP (NO donor), PEG drought stress treatment, PEG + NO drought stress + SNP treatment
