Messenger B J, Menge J A, Pond E
Department of Plant Pathology, University of California, Riverside 92521.
Plant Dis. 2000 Jun;84(6):617-621. doi: 10.1094/PDIS.2000.84.6.617.
Sporangial production of Phytophthora cinnamomi buried in gypsum-amended avocado soil for 2 days was reduced by as much as 74% in greenhouse trials. P. cinnamomi sporangial volume was reduced an average of 64% in gypsum-amended soil. Soil extracts from gypsum-amended soil reduced in vitro sporangial production and volume. Irrigation with gypsum solutions of buried mycelium in unamended soil also reduced sporangial production and volume. Zoospore production and colony-forming units of P. cinnamomi were reduced in soil amended with calcium sulfate, calcium nitrate, or calcium carbonate. Zoospore encystment or passive movement through soil was not significantly affected by gypsum soil amendments.
在温室试验中，埋于添加石膏的鳄梨土壤中2天的樟疫霉孢子囊产量降低了多达74%。在添加石膏的土壤中，樟疫霉孢子囊体积平均减少了64%。添加石膏土壤的提取物降低了体外孢子囊的产量和体积。用石膏溶液灌溉未改良土壤中埋入的菌丝体也降低了孢子囊的产量和体积。在添加硫酸钙、硝酸钙或碳酸钙的土壤中，樟疫霉的游动孢子产量和菌落形成单位减少。石膏土壤改良剂对游动孢子的包囊或在土壤中的被动移动没有显著影响。
