Figure 3
From: Exploring water-absorbing capacity: a digital image analysis of seeds from 120 wheat varieties
Pearson’s correlation coefficient (r) among studied traits before (n = 120) the water treatment (a), after (n = 120) the water treatment (b) and combined (n = 240) observations (c). Traits have been ordered by agglomerative hierarchical clustering (AHC) method and the absolute critical r-value was calculated as ± 0.212 beyond which the correlation was considered significant (p < 0.01) at 118 degree of freedom for (a) and (b), while in case of (c) r-value ± 0.212 was significant (p < 0.001) at 238 degree of freedom.
