Genotypic Variability in Some Morpho-Physiological Traits in Different Environments and Their Relationship with Cassava (Manihot esculenta Crantz) Root Yield

Figure 1

Vector view of the genotype × trait biplot on physiological traits of 20 genotypes of cassava showing the interrelationships among all traits in six environments. AGB = above ground biomass yield (t ha⁻¹), Branchno_plt = number of branches per plant, CMD (1–5) = cassava mosaic virus disease score (1 = healthy plant and 5 = highly diseased plant), HI°=°harvest index, L : G ratio = storage root length : girth ratio, Leaf temp = leaf temperature (°C), Levs_plt = number of leaves per plant, Plt_ht (cm) = plant height (cm), Rt_girth = storage root girth (cm), Rt_length = storage root length (cm), Rtno_plt = root number per plant, Rt_yld = storage root yield (t ha⁻¹), and St_cond = stomatal conductance (mmol⁻²s⁻¹).