Format

Send to

Choose Destination
Environ Sci Pollut Res Int. 2015 Oct;22(20):15952-60. doi: 10.1007/s11356-015-4821-z. Epub 2015 Jun 10.

Peach leaf responses to soil and cement dust pollution.

Author information

1
Laboratory of Pomology, School of Agricultural Sciences, University of Thessaly, Fitoko Str, 38446, Volos, Greece.
2
Laboratory of Pomology, School of Agricultural Sciences, University of Thessaly, Fitoko Str, 38446, Volos, Greece. gnanos@agr.uth.gr.
3
Laboratory of Water and Soil Resources Quality Control, Technological Educational Institute of Crete, Romanou 3, 73133, Chania, Greece.

Abstract

Dust pollution can negatively affect plant productivity in hot, dry and with high irradiance areas during summer. Soil or cement dust were applied on peach trees growing in a Mediterranean area with the above climatic characteristics. Soil and cement dust accumulation onto the leaves decreased the photosynthetically active radiation (PAR) available to the leaves without causing any shade effect. Soil and mainly cement dust deposition onto the leaves decreased stomatal conductance, photosynthetic and transpiration rates, and water use efficiency due possibly to stomatal blockage and other leaf cellular effects. In early autumn, rain events removed soil dust and leaf functions partly recovered, while cement dust created a crust partially remaining onto the leaves and causing more permanent stress. Leaf characteristics were differentially affected by the two dusts studied due to their different hydraulic properties. Leaf total chlorophyll decreased and total phenol content increased with dust accumulation late in the summer compared to control leaves due to intense oxidative stress. The two dusts did not cause serious metal imbalances to the leaves, except of lower leaf K content.

KEYWORDS:

Chlorophyll; Dust; Gas exchange; Mineral composition; Oxidative stress; Prunus persica

PMID:
26054460
DOI:
10.1007/s11356-015-4821-z
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center