Hydrogen‐ion Concentration as Related to the Fusarium Wilt of Tomato Seedlings

7. Hydrogen‐Ion Concentration and Plant Growth1

“…Hopkins (rs) found minimum infection in the case of wheat scab at pH 5. 5 and growth of the causal organism Gibber ella Saubinetii in pure culture showed a minimum at close to the same value .. Scott (22) at Missouri and Sherwood (23) at Wisconsin noted minimum infection in the case of the wilt disease of tomato caused by Fusarium lycopersici, when the soil was adjusted to about pH 6.8. Other cases have also been reported indicating a relation between the hydrogenion concentration and disease resistance.…”