Fig. 9
Hierarchical cluster heatmaps displaying the clustering patterns of cotton genotypes under (A) control (T1), (B) moderate drought stress (T2), and (C) severe drought stress (T3). The heatmaps represent scaled values of morpho-physiological and biochemical traits, with green indicating positive responses and blue representing negative interactions. Clusters differentiate the genotypes based on their trait performance under the control, moderate, and severe drought stress, with distinct groups highlighting differential responses to drought stress. These results emphasize the genotypic variation and stress adaptation mechanisms under varying drought conditions.
