Figure 7From: Organogenic nodule development in hop (Humulus lupulus L.): Transcript and metabolic responsesLoading scatter plot for principal component analysis. A Kruskal-Wallis test was performed using spectral intensities scaled to total intensity and reduced to integrated regions of equal width (0.04 ppm). The values for the loading scatter plot were selected when significantly different at a p value lower then 0,005.Back to article page