Unlike buttonwood, however, Swingle citrumelo has moderate to low flood tolerance (Auscitrus 2004).
abbreviatus larvae and their interactions on green buttonwood and Swingle citrumelo trees.
The experiment was conducted in fall 2008 in Homestead, Florida with green buttonwood and Swingle citrumelo plants in 11-liter plastic containers placed on ground cloth at an outdoor site exposed to full sun.
Green buttonwood and Swingle citrumelo trees (obtained from a commercial nursery) were approximately 2 yrs old and 1 yr old, respectively when treatments were initiated.
Leaf dry weight included leaf blades and petioles for green buttonwood plants and leaflets, petiolules, and petioles for Swingle citrumelo plants.
Soil redox potential for green buttonwood during the first, second and final flood periods ranged from +193 mV to +162 mV, +597 mV to +166 mV and +508 mV to +153 mV, respectively.
For green buttonwood, A (t = -2.21, df = 18, P = 0.0403) and [g.sub.s] (t = -2.70, df = 18, P = 0.0146) were significantly higher for non-flooded than flooded plants on the fifth (final) measurement date (Fig.
There were no significant effects of flooding or larval infestation on stem diameter or plant height for either green buttonwood or Swingle citrumelo (data not shown).
abbreviatus infested green buttonwood trees in 4-L containers filled with either marl soil or potting medium in an outdoor, open site.
However, larval herbivory tends to significantly reduce biomass and gas exchange of buttonwood in potting medium (Diaz 2005; Diaz et al.
Overall, plant gas exchange and plant weights observed by Diaz (2005) seemed to have been more affected (decreased) by flooding than by larval infestation in buttonwood or live oak.