Fig. 5From: Grafting alleviates potassium stress and improves growth in tobaccoImages of the K+ distribution in tobacco roots from the X-ray microanalysis. Blue particles represent the charge of K+. The tobacco graft combinations included the ungrafted tobacco W (Wufeng No.2) and Y (Yunyan 87), and grafted tobacco Y/W (Y grafted onto W) and W/Y (W grafted onto Y)Back to article page