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Ammar, M., Amer, G., Selim, M., Selim, D., Shaaban, N. (2017). PHYSIO-PATHOLOGICAL STUDIES ON THE EFFECT OF FERTILIZATION AND PLANT WATER EXTRACTS ON ONION (Allium cepa L.) INFECTED WITH DOWNY MILDEW DISEASE. Menoufia Journal of Plant Protection, 2(5), 299-317. doi: 10.21608/mjapam.2017.126799
M.M. Ammar; G.A. Amer; M.O. Selim; Dalia A. Selim; N.M. Shaaban. "PHYSIO-PATHOLOGICAL STUDIES ON THE EFFECT OF FERTILIZATION AND PLANT WATER EXTRACTS ON ONION (Allium cepa L.) INFECTED WITH DOWNY MILDEW DISEASE". Menoufia Journal of Plant Protection, 2, 5, 2017, 299-317. doi: 10.21608/mjapam.2017.126799
Ammar, M., Amer, G., Selim, M., Selim, D., Shaaban, N. (2017). 'PHYSIO-PATHOLOGICAL STUDIES ON THE EFFECT OF FERTILIZATION AND PLANT WATER EXTRACTS ON ONION (Allium cepa L.) INFECTED WITH DOWNY MILDEW DISEASE', Menoufia Journal of Plant Protection, 2(5), pp. 299-317. doi: 10.21608/mjapam.2017.126799
Ammar, M., Amer, G., Selim, M., Selim, D., Shaaban, N. PHYSIO-PATHOLOGICAL STUDIES ON THE EFFECT OF FERTILIZATION AND PLANT WATER EXTRACTS ON ONION (Allium cepa L.) INFECTED WITH DOWNY MILDEW DISEASE. Menoufia Journal of Plant Protection, 2017; 2(5): 299-317. doi: 10.21608/mjapam.2017.126799

PHYSIO-PATHOLOGICAL STUDIES ON THE EFFECT OF FERTILIZATION AND PLANT WATER EXTRACTS ON ONION (Allium cepa L.) INFECTED WITH DOWNY MILDEW DISEASE

Article 3, Volume 2, Issue 5, September and October 2017, Page 299-317  XML PDF (486.87 K)
Document Type: Original Article
DOI: 10.21608/mjapam.2017.126799
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Authors
M.M. Ammar; G.A. Amer; M.O. Selim; Dalia A. Selim; N.M. Shaaban
Agriculture Botany Department, Faculty of Agriculture, Menoufia University, Egypt
Abstract
Additional fertilization with actosol macroelements, actosol microelements and/or compost; significantly reduced the incidence of onion downy mildew disease(ODM) on both tested onion cultivars (Giza 6 and Giza 20). Increasing the fertilizer dose gave more disease reduction and improved growth characteristics, photosynthetic pigments, water relations and yield production. Generally, the best results were obtained when actosol macroelements (10 ml/l) was applied. Application of plant water extracts on onion plants at intervals of 15 days, significantly decreased the infection with the fungus. Both of neem or mint plant extracts at conc. 10 % showed the best results for disease reduction, growth characteristics, photosynthetic pigments, water relations and yield production. The best yield production was obtained by the application of actosol macroelements and /or neem plant extract.
Keywords
Downy mildew; Peronospora destructor; fertilization; actosol; compost; plant extracts; growth; photosynthetic pigments; water relations and yield production
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