Developmental reaction norms for water stressed seedlings of succulent cacti.

platyacanthus , PC1 Ech shows a reduction in seedling size and turgency due to the stress treatment, but not age ( Figure 3F ); PC2 Ech shows no variation on the elongation of the apex due to age or treatment ( Figure 3G ); PC3 Ech shows a highly significant increase in the turgency of the hypocotyl due to age, which is stunted in the water stress treatment ( Figure 3H ).

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