Figure 2. Effects of orientation and initial stolon length on final size of fragments of Alternanthera philoxeroides.

Final size of fragments was measured by final dry biomass (A and F), leaf area (B and G), number of leaves (C and H), number of nodes (D and I), and total length of new stolons (E and J) of surviving fragments. Shaded bars (A–E) are grand means + s.e. of the five orientation treatments across the two stolon length treatments; open bars (F–J) are means + s.e. of the ten orientation and stolon length treatment combinations. Letters show which means differed within each measure (Student-Newman-Keuls test, P = 0.05).