CARBOHYDRATES CONTENTS IN RELATION TO REACTION OF MANGO TO POWDERY MILDEW AND ITS CHEMICAL CONTROL
BARAKA, M., SALLAM, A., MAHDY, R. (1994). CARBOHYDRATES CONTENTS IN RELATION TO REACTION OF MANGO TO POWDERY MILDEW AND ITS CHEMICAL CONTROL. EKB Journal Management System, 72(3), 655-663. doi: 10.21608/ejar.1994.452073
METWALY A. BARAKA; ABDEL-AZIZ A. SALLAM; REFAT M. MAHDY. "CARBOHYDRATES CONTENTS IN RELATION TO REACTION OF MANGO TO POWDERY MILDEW AND ITS CHEMICAL CONTROL". EKB Journal Management System, 72, 3, 1994, 655-663. doi: 10.21608/ejar.1994.452073
BARAKA, M., SALLAM, A., MAHDY, R. (1994). 'CARBOHYDRATES CONTENTS IN RELATION TO REACTION OF MANGO TO POWDERY MILDEW AND ITS CHEMICAL CONTROL', EKB Journal Management System, 72(3), pp. 655-663. doi: 10.21608/ejar.1994.452073
BARAKA, M., SALLAM, A., MAHDY, R. CARBOHYDRATES CONTENTS IN RELATION TO REACTION OF MANGO TO POWDERY MILDEW AND ITS CHEMICAL CONTROL. EKB Journal Management System, 1994; 72(3): 655-663. doi: 10.21608/ejar.1994.452073

CARBOHYDRATES CONTENTS IN RELATION TO REACTION OF MANGO TO POWDERY MILDEW AND ITS CHEMICAL CONTROL

Egyptian Journal of Agricultural Research
Volume 72, Issue 3, September 1994, Pages 655-663    PDF (2.03 M)
Document Type: Original Article
DOI: 10.21608/ejar.1994.452073
Authors
METWALY A. BARAKA1; ABDEL-AZIZ A. SALLAM1; REFAT M. MAHDY2
1Faculty of Agriculture, Suez Canal University, Egypt
2Plant Pathology Research Institute, Agricultural Research Centre, Giza, Egypt
Abstract
Mango varieties differed in reaction to powdery mildew. Zebdia and Dabsha were less susceptible to infection, compared to Sinara Hindi, White Shamam, Balady and Paine. Taymour and Sokari Momtaz are the most susceptible. Total sugars in healthy young leaves of the less susceptible varie­ty (Zebdia) were lower than in the highly susceptible variety Taymour. Zebdia variety exhibited higher amounts of reducing sugars than the highly susceptible Taymour. Resistant old leaves of the two tested varie­ties contained less total sugars than the highly susceptible young leaves. On the other hand, infection with powdery mildew reduced total and re­ducing sugars and chlorophyll content compared to healthy ones. In field tests with 12 fungicides, the best control of powdery mil­dew (Oidium mangifera) was achieved with Calaxin, (tridemorph) Kara-than 35% (Denocap), Nimrod (Bupimate), Sunlayton (triademifron), Tilt-250 (propiconazole), and Rubigan (Fenarimol).
Statistics
Article View: 13
PDF Download: 1