Figure 2.

Phenotypic reaction of resistant and susceptible Fusarium wilt (FW) and sterility mosaic disease (SMD) plants. FW is a seed and soil borne fungal disease caused by Fusairum udum. Wilt symptoms usually appear when plants are in flowering and podding stage (a), but sometimes occur earlier when plants are 1‐2‐month‐old (b). SMD is a viral disease caused by Pigeonpea sterility mosaic virus (PSMV). This disease can be easily identified from a distance as patches of bushy, pale green plants (c) without flower or pods (d). Due to excess vegetative growth, without growing into reproductive phase, this disease is known as the green plague of pigeonpea.