Question

a disease causing yellowing, wilting and eventual death of cotton plants, with characteristic browning of the internal vascular tissue when the stem is cut open, and which survives in the soil for extended periods, is caused by which soil-borne fungus?

Q: Answer-a disease causing yellowing, wilting and eventual death of cotton plants, with characteristic browni...

Cotton wilt is caused by the soil-borne fungus Fusarium oxysporum f. sp. vasinfectum, which blocks the plants vascular tissue, causing characteristic internal browning visible when the stem is cut open, along with yellowing, wilting and eventual death of the plant, and can persist in the soil for many years.