Figure 2. Effect of stable and moderate drought on shoot dry weight, root length density and root DNA density on wheat plants grown in pots under a controlled environment.

Effect of stable and moderate drought on shoot dry weight (a), root length density (b) and root DNA density (c) of two wheat cultivars, Kukri and Gladius. Soil moisture tension in the stable and moderate treatment was maintained at −0.4 MPa for four weeks after sowing until flowering. Well watered (WW) plants were the control. Plants were grown in a controlled climate environment. Means of five replicates are represented. There are significant differences in shoot dry weight and RLD for interactions of genotype × drought (P < 0.05). The differences in RDD for the genotypes and drought treatments were significant (P < 0.006), but the interaction of genotype × drought was not significant (P = 0.56). Vertical lines indicate the least significant difference at P = 0.05.