Table I.

Effects of NPA on leaf initiation in cultured P5 maize shoot apices

Data represent total leaf counts of maize shoots dissected to contain five leaf primordia and grown in culture.

Time in Culture	MCM	NPA
12 d
No. of samples	7	9
No. of leaves	7.29, sd = 0.49	5.11, sd = 0.33
14 d
No. of samples	15	20
No. of leaves	7.80, sd = 0.56	5.15, sd = 0.37
20 d
No. of samples	16	19
No. of leaves	10.19, sd = 0.91	5.32, sd = 0.58