Figure 8.
The effect of Mn deficiency on root morphology. A, Seedlings subjected to differing Mn supplies. B, Total root length. C, PR length consisting of the BZPR (darker gray) and LR FZPR (lighter gray). D, 1° LR density. E, Average 1° LR length. F, 2° LR density. G, Average 2° LR length. The numbers within the LR FZPR bar of C indicate the length of the LR FZPR as a percentage of the total PR length. Seedlings were cultivated for 4 d with no Mn added and then grown on the Mn treatments indicated for a further 13 d. Bars show means ± se (n.s. denotes not significant; n = 16–28). [See online article for color version of this figure.]