Table 2

The influence of 24-hour dehydration on photochemical efficiency (Fv/Fm) of detached leaves of woody plants.

Species	Fv/Fm
Quercus ilex	0.801 (1.42)^ns
Aucuba japonica ‘Variegata’	0.791 (2.46)^ns
Viburnum davidii	0.789 (2.59)^ns
Skimmia japonica ‘Rubella’	0.779 (3.22)^ns
Pinus sylvestris	0.777 (3.24)^ns
Olearia chathamica	0.769 (4.17)^ns
Berberis × ottawensis ‘Superba’	0.763 (5.80)^ns
Mahonia × media ‘Charity’	0.760 (6.02)^ns
Clematis ‘Elsa Spaeth’	0.758 (6.19)^ns
Hedera helix ‘Golden child’	0.751 (7.28)*
Garrya elliptica	0.751 (7.39)*
Prunus laurocerasus ‘Zabeliana’	0.750 (7.41)*
Hedera helix ‘Hibernica’	0.744 (7.52)*
Weigela florida	0.728 (10.12)*
Griselinia ‘littoralis’	0.702 (13.33)*
Sorbus aucuparia	0.700 (13.69)*
Prunus lusitanica ‘Variegata’	0.693 (14.45)*
Pieris ‘Forest Flame’	0.690 (14.88)*
Berberis darwinii	0.652 (19.81)*
Escallonia ‘Iveyi’	0.646 (21.03)*
Sarcococca var. humilis	0.636 (22.63)*
Ilex aquifolium	0.636 (23.15)*
Malus sylvestris	0.624 (23.22)*
Euonymus fortunei ‘Emerald ‘n’ Gold’	0.620 (24.00)*
Aesculus hippocastanum	0.616 (24.31)*
Juglans regia	0.588 (27.41)*
Laburnum × vossi	0.555 (31.48)*
Fagus sylvatica	0.548 (32.49)*
Salix daphnoides	0.448 (44.69)*
Spiraea japonica ‘Shirobana’	0.421 (51.91)*

All values mean of 10 plants; 10 leaves per plant.
Species = *, dehydration = *, species X dehydration = *, ns = not significant, * = P ≤ 0.05.
Values in parentheses represent reductions in Fv/Fm from controls expressed as a percentage. Species are ranked in order of tolerance based on percentage reductions in Fv/Fm from controls.