Abstract
Summary Seven tree species (Acer campestre, Betula pendula, Ilex aquifolium, Jugulans regia, Quercus ilex, Prunus avium, and Sorbus aucuparia) commonly planted into urban landscapes throughout the UK were subjected to foliar applied salt (NaCl). Chlorophyll fluorescence, photosynthetic rates, leaf chlorophyll content and growth were used to assess short and long term tree responses. Recovery rates of foliar tissue from salinity damage did not markedly differ between species. Likewise, although reductions in tree growth were recorded for all species compared to controls at the cessation of the experiment, no mortalities were recorded. Results showed no major differences in foliar salt tolerance between the seven species tested. Use of chlorophyll fluorescence to monitor effects on the plastoquinone electron acceptor side reactions, pool size and heterogeneity of photosystem II and absorption, trapping and electron transport energy fluxes per cross section of photosystem II provided previously unreported effects of salinity on the leaf photosynthetic apparatus of the tree species used in this investigation.
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Claims 5
Claim · model-written summary
Foliar tissue recovery rates from salt damage did not markedly differ among species.
Verbatim
e0“Recovery rates of foliar tissue from salinity damage did not markedly differ between species.”
t0“SEVEN URBAN TREE SPECIES”
Claim · model-written summary
Growth fell in all seven species relative to controls after foliar salt exposure.
Verbatim
e0“Likewise, although reductions in tree growth were recorded for all species compared to controls at the cessation of the experiment, no mortalities were recorded.”
t0“SEVEN URBAN TREE SPECIES”
e1“foliar applied salt (NaCl)”
Claim · model-written summary
No mortality was recorded among the salt-exposed trees.
Verbatim
e0“Likewise, although reductions in tree growth were recorded for all species compared to controls at the cessation of the experiment, no mortalities were recorded.”
t0“SEVEN URBAN TREE SPECIES”
Claim · model-written summary
Foliar salt tolerance showed no major differences among seven tree species.
Verbatim
e0“Results showed no major differences in foliar salt tolerance between the seven species tested.”
t0“SEVEN URBAN TREE SPECIES”
Claim · model-written summary
Chlorophyll fluorescence revealed previously unreported salinity effects on photosystem II processes.
Verbatim
e0“Use of chlorophyll fluorescence to monitor effects on the plastoquinone electron acceptor side reactions, pool size and heterogeneity of photosystem II and absorption, trapping and electron transport energy fluxes per cross section of photosystem II provided previously unreported effects of salinity on the leaf photosynthetic apparatus of the tree species used in this investigation.”
t0“SEVEN URBAN TREE SPECIES”