highly significantp < .0000001
Comparison of the cross‐sectional area of stems produced by the same plant in 2000 and in 2001 showed a highly significant effect of treatment ( F 1, 168 = 31.10, p < .0000001).
Comparison of the cross‐sectional area of stems produced by the same plant in 2000 and in 2001 showed a highly significant effect of treatment ( F 1, 168 = 31.10, p < .0000001).