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Factors affecting basidiospore release by Chondrostereum purpureum in New Zealand
Author(s) -
Spiers A. G.
Publication year - 1985
Publication title -
european journal of forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 0300-1237
DOI - 10.1111/j.1439-0329.1985.tb00874.x
Subject(s) - basidiospore , spore , zoology , horticulture , biology , chemistry , botany
Basidiospore discharge by Chondrostereum purpureum was studied in the laboratory and in the field.Discharge began several hours. following rain and continued until the water content of sporophores fell below 75%. The duration of the spore release period and the number of basidiospores. released were significantly (P < 0.01) correlated with total rainfall and hours of RH% > 75%. In the laboratory, temperature significantly (P < O.O5) influenced basidiosporc production, the optimum being 18°C. In field studies, temperature correlated poorly with the duration of spore release and the number of basidiospores discharged. Laboratory studies showed that alternating light/dark photoperiods resulted in greater basidiospore production than either conitinuous dark or light, and that due to time lag light stimulated spore production in the dark. Field studies supported rese observations although it was not possible to separate the influence of light from that of relative humnidity and tainfall. Regression equations were derived to predict the amount and duration of spore discharge.