Which symptom is associated with Clubroot infection?

The symptom associated with Clubroot infection is the presence of wilting and galls on the roots. Clubroot is a soil-borne disease caused by the pathogen Plasmodiophora brassicae, which affects cruciferous plants, including important crops like cabbage, broccoli, and cauliflower.

When plants are infected with Clubroot, the pathogen induces the formation of galls or abnormal growth on the roots. These galls disrupt the plant’s ability to take up water and nutrients, leading to symptoms such as wilting, stunting, and ultimately poor plant health. The wilting occurs because the root system becomes compromised and unable to support the plant, especially during periods of drought or stress.

By contrast, the other symptoms listed, such as leaf discoloration, fruit rot, and brown patches on leaves, can be associated with a variety of other plant diseases or conditions, but they do not specifically point to a Clubroot infection. Thus, the presence of wilting and galls on the roots is a definitive indicator of Clubroot, making this the correct choice for identifying the symptom linked to this particular pathogen.