FIGURE 1 The growth changes of S. miltiorrhiza seedlings
under abiotic stress. (a), (b), and (c) respectively represent the
changes in the growth effects of the superposition of various
environmental factors under the stress of nitrogen, phosphorus and
nitrogen and phosphorus deficiency, and (d) represents the changes in
the growth effects of the superposition of drought and high temperature.
* indicating a significant difference to the CK treatment, p< 0.05.