Fig. 1

Histogram displaying the frequency distribution of various morphological traits across 40 cotton genotypes under three treatments: T1 (green), the control condition (100% field capacity); T2 (orange), moderate drought stress (60% field capacity); and T3 (purple), severe drought stress (40% field capacity). The traits include (A) shoot length (SL); (B) shoot fresh weight (SFW); (C) root length (RL); (D) root fresh weight (RFW); (E) shoot dry weight (SDW); and (F) root dry weight (RDW). Overlaid smooth lines represent kernel density estimations (KDE), offering a clear visualization of the probability distribution of each trait under the three treatments, highlighting the variations and central tendencies across the genotypes.