Total Leaf Nitrogen Correlated with Walnut Anthracnose Resistance    (View PDF)

Dan Neely

Abstract: Greenhouse studies of Juglans nigra confirmed the findings of field trials that fertilization with nitrogen reduces the severity of anthracnose caused by Gnomonia leptostyla. Total nitrogen content of leaves on seedlings of Juglans treated with a complete Hoagland's solution, with Hoagland's minus nitrogen, or with Hoagland's plus nitrogen ranged from 2.14% to 4.13%. Numbers of anthracnose lesions decreased with increased leaf nitrogen content (R = 0.719).

Keywords: Cultural Control; Epidemiology; Host Nutrition/Pathogen Interaction

https://doi.org/10.48044/jauf.1986.068