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. 2019 Mar 14;10:300. doi: 10.3389/fpls.2019.00300

FIGURE 3.

FIGURE 3

PCA bi-plot of the agronomic- and photosynthetic-traits for the potatoes grown under different thermal regimes at TI and TB. In order to remove the effect of different radiation conditions between TI and TB, the measurements of agronomic- and photosynthetic-traits were transformed to the percentage changes compared to the controls of each growth stage.