ISHS Acta Horticulturae 494: II International Symposium on Chestnut
SOILS AND CLIMATIC CHARACTERISTIC OF CHESTNUT STANDS THAT DIFFER ON THE PRESENCE OF THE INK DISEASE |
| Authors: | L.M. Martins, M.T. Oliveira, C.G. Abreu |
| Keywords: | Chestnut, ink disease, soil (directional) exposure |
| Abstract:
Chestnut ink disease, induced by Phytophthora cinnamomi, constitutes by far the most important tree disease currently affecting North eastern Portugal. However, variations in disease severity have been recognised in soils with different exposures. In this three-year study, which began in July 1996, quarterly assessments have been made of air temperature, air humidity, wind speed, solar radiation, soil water content and soil temperature (at 25 cms depth). Soil and climatic parameters were shown to be more stressful on south-facing stands, i.e. soil temperature was higher and the soil drier, while temperature and wind speed were higher and air humidity lower. Thus, the severity of the disease was greater on south-facing stands. | |
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