PT  - JOURNAL ARTICLE
AU  - Chris A. Martin
AU  - Sheila Bhattacharya
TI  - Effects of Cupric Hydroxide-Treated Containers on Growth of Four Southwestern Desert Landscape trees
AID  - 10.48044/jauf.1995.038
DP  - 1995 Sep 01
TA  - Arboriculture & Urban Forestry (AUF)
PG  - 235--238
VI  - 21
IP  - 5
4099  - http://auf.isa-arbor.com/content/21/5/235.short
4100  - http://auf.isa-arbor.com/content/21/5/235.full
SO  - JOA1995 Sep 01; 21
AB  - Seedling liners of four southwestern desert landscape trees, Acacia smallii, Acacia stenophylla, Cercidium praecox, and Prosopis chilensis, were potted into black polyethylene containers either painted on the inner wall with a latex paint containing cupric hydroxide [Cu(OH)2] or unpainted. Tree seedlings were then grown for five months in an outdoor container production nursery and evaluated for effects of Cu(OH)2-treated containers on tree growth. No foliar copper toxicity symptoms were observed on any species during the study. In comparison with unpainted containers, Cu-treated containers increased root branching frequency, reduced shoot extension, and lowered the number of primary shoot lateral branches of sweet acacia and shoestring acacia. Cu-treated containers also decreased height of shoestring acacia. Chilean mesquite grew taller and larger with increased shoot and root dry weights in Cu-treated containers in comparison with those in unpainted containers. However, effects of Cu-treated containers on growth of Chilean mesquite were not related to any changes in root branching frequency. Growth of palo brea and root-to-shoot ratios of all four tree species were not affected by Cu-treated containers.