Display options
Cite
Sutherland ML, Pearson S, Brasier CM. The influence of temperature and light on defoliation levels of elm by dutch elm disease. Phytopathology. 1997;87(6):576-81doi: 10.1094/PHYTO.1997.87.6.576.
Sutherland, M. L., Pearson, S., & Brasier, C. M. (1997). The influence of temperature and light on defoliation levels of elm by dutch elm disease. Phytopathology, 87(6), 576-81. https://doi.org/10.1094/PHYTO.1997.87.6.576
Sutherland, M L, et al. "The influence of temperature and light on defoliation levels of elm by dutch elm disease." Phytopathology vol. 87,6 (1997): 576-81. doi: https://doi.org/10.1094/PHYTO.1997.87.6.576
Sutherland ML, Pearson S, Brasier CM. The influence of temperature and light on defoliation levels of elm by dutch elm disease. Phytopathology. 1997 Jun;87(6):576-81. doi: 10.1094/PHYTO.1997.87.6.576. PMID: 18945072.
Copy Download .nbib Format: NLM
Share it on

Phytopathology. 1997 Jun;87(6):576-81. doi: 10.1094/PHYTO.1997.87.6.576.

The influence of temperature and light on defoliation levels of elm by dutch elm disease.

Phytopathology

M L Sutherland, S Pearson, C M Brasier

PMID: 18945072 DOI: 10.1094/PHYTO.1997.87.6.576

Abstract

ABSTRACT The amount of defoliation of elm (Ulmus procera) caused by three Ophiostoma novoulmi Eurasian race isolates over 14 seasons of field trials was found to be strongly correlated with mean air temperature and mean number of sunshine hours over the 12-week period from inoculation to assessment, and with tree age. The coefficient of determination for the regression of percent defoliation on the environmental and tree factors was 0.76, P < 0.001 (33 df). Levels of defoliation were greatest when mean air temperatures exceeded 17 degrees C with moderate light (5 to 7 h of sunshine), and lowest under conditions of either high light (>7.5 h of sunshine) at all air temperatures or low light (<4.5 h of sunshine) and air temperatures of less than 15.5 degrees C. The model varied in its intercept for the three isolates, reflecting their different levels of aggressiveness. The role of environmental factors in the development of Dutch elm disease symptoms and the implications for elm resistance breeding are discussed.

Publication Types