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MUHANNA, N., RAGAB, S., MOHAMED, G. (2011). MINERAL SALTS IN CONTROLLING POWDERY MILDEW OF SQUASH. Egyptian Journal of Agricultural Research, 89(3), 809-818. doi: 10.21608/ejar.2011.176546
NAGLAA A.S. MUHANNA; SEHAM S.M. RAGAB; GEHAD M. MOHAMED. "MINERAL SALTS IN CONTROLLING POWDERY MILDEW OF SQUASH". Egyptian Journal of Agricultural Research, 89, 3, 2011, 809-818. doi: 10.21608/ejar.2011.176546
MUHANNA, N., RAGAB, S., MOHAMED, G. (2011). 'MINERAL SALTS IN CONTROLLING POWDERY MILDEW OF SQUASH', Egyptian Journal of Agricultural Research, 89(3), pp. 809-818. doi: 10.21608/ejar.2011.176546
MUHANNA, N., RAGAB, S., MOHAMED, G. MINERAL SALTS IN CONTROLLING POWDERY MILDEW OF SQUASH. Egyptian Journal of Agricultural Research, 2011; 89(3): 809-818. doi: 10.21608/ejar.2011.176546

MINERAL SALTS IN CONTROLLING POWDERY MILDEW OF SQUASH

Article 2, Volume 89, Issue 3, September 2011, Page 809-818  XML PDF (335.51 K)
Document Type: Original Article
DOI: 10.21608/ejar.2011.176546
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Authors
NAGLAA A.S. MUHANNA; SEHAM S.M. RAGAB; GEHAD M. MOHAMED
Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt
Abstract
Powdery mildew of squash caused by Sphaerotheca fuliginea is more prevalent in Egypt, in Summer and Nili plantations than in the Winter . The effect of spraying different salts on disease incidence was studied. Results revealed that KCl, KH2PO4 and K2CO3 were generally effective in powdery mildew control. It was also concluded that potassium salts at concentrations of 750 ug/ml decreased infection, as compared with the fungicide Prochloraz either applied after or before symptom development. Biochemical changes associated with salt application possibly induced systemic resistance. The presence of common protein bands were recognized. Electrophoretic analysis of extracted proteins on polyacrylamide gel showed greater number of protein bands with fungicide treatment as compared withK2CO3, KCL, KH2PO4 and the control.
Keywords
Squash; Powdery mildew; Salt; Sphaerotheca fuliginea; Resistante; and Pathogensis–Proteins
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