Table 2.

Effect of 8 mulch treatments and a nonmulched control on stem caliper, height, and leaf dry mass of Acer rubrum Fairview Flame®.

TreatmentHeightz(cm)Stem calipery(cm)Leaf dry massx (g)
Lava rock222w av4.1u ab441t abc
Wood chip222 a4.1 ab423 abc
Pea gravel220 a4.2 a467 a
Crushed brick219 a4.2 a478 a
Control219a4.1 ab419 abc
Carmel218 a4.2 a463 ab
River rock214 a4.2 a449 abc
Screened pine214a4.0 ab398 bc
Shredded bark210a3.9 b383 c
  • z Height measured from ground level to highest shoot apex on September 20, 1997.

  • y Stem caliper measured 15 cm (6 in.) above ground level on September 19, 1997.

  • x Leaves harvested October 4 and 5, 1997.

  • w Data shown are means of 10 observations.

  • v Mean separation within columns by LSD, P ≤ 0.05.

  • u Data shown are means of 10 observations. Each observation is the average of measurements taken at 1) the widest point on the stem, and 2) rotated 90° clockwise from the first measurement.

  • t Data shown are means of 10 observations.