Fig. 4From: Nitrogen application and different water regimes at booting stage improved yield and 2-acetyl-1-pyrroline (2AP) formation in fragrant ricePCA (a and c) and PLS-DA (b and d) analysis of the investigated parameters, the important features to the 5 components analysis of PLS-DA for different water and nitrogen treatment (component 1–5: e-i) and the Parameters ranked by their contributions to classification accuracy (Mean Dicrease Accuracy, j)Back to article page