In the first solution culture experiment, 20 plants
were grown in each pot. The plants were supplied with
20 μM (low), 100 μM (medium) or 500 μM (high) P
and 0.01 μM (low), 0.1 μM (medium) or 1 μM (high)
Zn. When the plants were 34 days old, their shoots and
roots were harvested.