Co-Authors:
Reuveni, M., Golan Research Institute, University of Haifa, P.O.B0X 97, Kazrin, 12900, Israel
Naor, A., Golan Research Institute, University of Haifa, P.O.B0X 97, Kazrin, 12900, Israel
Reuveni, R., Division of Plant Pathology, Haifa, 31999, Israel
Shimoni, M., Division of Plant Pathology, Haifa, 31999, Israel
Bravdo, B., Department of Horticulture, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot, 76100, Israel
Abstract:
Field-grown ‘Sauvignon Blanc’ winegrapes fertigated with various concentrations of N:P:K (7:3:7) for four consecutive years (1988-1991) were evaluated for susceptibility to powdery mildew (Uncinuta necator). Vines fertilized with low NPK concentrations were significantly more susceptible to disease than plants fertilized with high levels. The number of powdery mildew-infected clusters and the severity of the infection were much greater on plants fertilized with a low level of NPK (about 50%), as compared to those of the high fertilization levels (9.5%). In addition, total proteins content and ß-1,3-glucanase activity in berries from low NPK-fertil- ized plants was greater than that of the high fertilization level in plants. © 1994 by The Haworth Press, Inc.
תפריט נגישות
ניגודיות עדינה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
להורדת מודול נגישות חינם
