Phytophthora medicaginis

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symptoms of chickpea root rot disease caused by Phytophthora medicaginis
Author(s): John Hubert Miranda
Source: Euphytica (2019) 215 art. 91

Phytophthora medicaginis E.M. Hansen & D.P. Maxwell 1991

This oomycete is widely distributed, mainly in temperate and subtropical regions. It infects predominately lucerne and cickpea, causing a root disease. The symptoms include yellowing of the lower leaves, leading to defoliation and/or wilting of entire plants. Infected roots are dark brown to black.

On chickpea, the disease symptoms typically develop after flowering and most often under cool and wet conditions or in waterlogged soils. Yield losses can surpass 50% in susceptible cultivars.