PT - JOURNAL ARTICLE AU - Gerhold, Henry D. TI - Species Differ in Responses to Tree Shelters AID - 10.48044/jauf.1999.011 DP - 1999 Mar 01 TA - Arboriculture & Urban Forestry (AUF) PG - 76--80 VI - 25 IP - 2 4099 - http://auf.isa-arbor.com/content/25/2/76.short 4100 - http://auf.isa-arbor.com/content/25/2/76.full SO - JOA1999 Mar 01; 25 AB - Effects of tree shelters on height, caliper, and diameter at breast height of 11 landscape tree species and cultivars were investigated in 2 nurseries during a 4-year period; the ratio of height to caliper was calculated as an indicator of trunk sturdiness. Species differed greatly in their responses, ranging in the fourth year from none to 44% and 55% height increases of Magnolia ‘Merrill’ and M. stellata accompanied by 18% and 14% caliper increases. Acer griseum, Carpinus caroliniana, Cercis canadensis, Cornus ‘Celestial’ and ‘Constellation’, Prunus serrulata ‘Kwanzan’, and P. subhirtella autumnalis exhibited more modest height increases, but also caliper decreases, compared to controls without shelters. Malus ‘Adirondack’ and Syringa reticulata ‘Summer Snow’ did not benefit. Two shelter sizes and severe winter weather also affected the results of some varieties.