Figure 3 Pathogen Biology Phytophthora sojae is an oomycete a close relative of the golden brown... Figure 3 Pathogen Biology Phytophthora sojae is an oomycete, a close relative of the golden brown... Figure 13 Significance Phytophthora root rot is a problem worldwide on poorly drained soils... Figure 13 Significance Phytophthora root rot is a problem worldwide on poorly drained soils... Figure 12 Cultural practices Phytophthora root rot is more severe in poorly drained or flooded areas... Figure 12 Cultural practices Phytophthora root rot is more severe in poorly drained or flooded areas... Figure 1b Phytophthora sojae is a soil borne pathogen that in the past has caused very large... Figure 1b Phytophthora sojae is a soil borne pathogen that in the past has caused very large... Figure 7 Zoospores swim toward the root and encyst on the root surface. A single germ tube emerges... Figure 7 Zoospores swim toward the root and encyst on the root surface. A single germ tube emerges... Figure 15 Selected References Costamilan L.M E.R. Bonato A.F. Urben K. Matsuoka and C.A.... Figure 15 Selected References Costamilan, L.M, E.R. Bonato, A.F. Urben, K. Matsuoka, and C.A.... Figure 14 Figure 14 Figure 8 Soybean root and stem infections can occur throughout the season and are thought to arise... Figure 8 Soybean root and stem infections can occur throughout the season and are thought to arise... Figure 2 Root and stem rot . The severity of the infection on soybean plants in the vegetative and... Figure 2 Root and stem rot . The severity of the infection on soybean plants in the vegetative and... Figure 1a Figure 1a Figure 10 Root resistance and partial resistance are both expressed in the roots. Root resistance is... Figure 10 Root resistance and partial resistance are both expressed in the roots. Root resistance is... Figure 5 On lima bean agar oospores (thick-walled sexual spores) form readily often within 3 to 4... Figure 5 On lima bean agar, oospores (thick-walled, sexual spores) form readily, often within 3 to 4... Figure 4 Figure 4 Figure 6b Sporangia (thin-walled lemon-shaped spores) do not form in agar culture but can be induced... Figure 6b Sporangia (thin-walled lemon-shaped spores) do not form in agar culture but can be induced... Disease Cycle Phytophthora sojae is a soilborne plant pathogen that survives as oospores in soil and... Disease Cycle Phytophthora sojae is a soilborne plant pathogen that survives as oospores in soil and...
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