Comparison of disease severity and incidence at different growth stages of naturally infected canola plants under field conditions by pycnidiospores of Phoma lingam as a main source of inoculum

• Published in: Canadian journal of plant pathology Vol. 33; no. 3; pp. 355 - 363
• Main Authors: Ghanbarnia, Kaveh, Dilantha Fernando, W. G, Crow, Gary
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 01.07.2011; Taylor & Francis Ltd
• Subjects: ascospores; Biological and medical sciences; blackleg; Brassica napus; canola; cotyledons; Crops; developmental stages; Disease; disease incidence; disease severity; Dispersion des spores; epidemiology; Fundamental and applied biological sciences. Psychology; Fungal plant pathogens; Genetics; Genotype & phenotype; inoculum; jambe noire; Leptosphaeria maculans; Phoma; Phytopathology. Animal pests. Plant and forest protection; pycnidia; samplers; spore dispersal; stem cankers; stubble; épidémiologie; Manitoba; Plant pathogen; Disease; Epidemiology; Source; Spores; Incidence; Fungi; Study under natural conditions; Cruciferae; Dicotyledones; Angiospermae; Developmental stage; Fungi Imperfecti; C3-Type; Ascomycota; Vegetals; Dispersion; Infection; Phoma lingam; Leptosphaeria maculans; Brassica napus; Spermatophyta; Severity score; Oil plant (vegetal); Field study; Inoculum

Phoma stem canker, caused by Leptosphaeria maculans, is the most destructive disease of canola (Brassica napus) in the world. A study was conducted to compare mean disease severity and incidence at three different growth stages on naturally infected canola plants under field conditions. To determine...