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Articles by Nashwa M.A. Sallam
Total Records ( 2 ) for Nashwa M.A. Sallam
  Nashwa M.A. Sallam
  The objective of this work to study the effect of six plant extracts, Ocimum basilicum (Sweat Basil), Azadirachta indica (Neem), Eucalyptus chamadulonsis (Eucalyptus), Datura stramonium (Jimsonweed), Nerium oleander (Oleander) and Allium sativum (Garlic) against Alternaria solani in vitro and in vivo. In in vitro study the leaf extracts of D. stramonium, A. indica and A. sativum at 5% concentration caused highest reduction of mycelial growth of A. solani (44.4, 43.3 and 42.2%, respectively), while O. basilicum at 1 and 5% and N. oleander at 5% caused the lowest inhibition of mycelia growth of the pathogen. In greenhouse experiments the highest reduction of disease severity was achieved by fungicide (Ridomil Plus 50% WP, 15% metalaxy+35% Copper oxychloride, at 2 g L-1) 82.8% followed by the extracts of A. sativum at 5% and D. stramonium at 1 and 5% concentration. The greatest reduction of disease severity was achieved by Ridomil Plus 74.2% followed by A. sativum at 5% and the smallest reduction was obtained when tomato plant was treated with O. basilicum at 1 and 5% (46.1 and 45.2%, respectively). Fungicide, D. stramonium and A. sativum at 5% increased the fruit yield 85.7, 76.2 and 66.7% compared to infected control. All treatments, plant extracts and fungicide (Ridomil Plus), significantly reduced the early blight disease as well as increased the yield of tomato compared to infected control under field condition.
  Nashwa M.A. Sallam and Montaser Fawzy Abdel-Monaim
  Isolation and pathogenicity trails revealed clearly that Fusarium oxysporum f. sp. lentis was the common fungi associated with wilt symptoms and were pathogenic to lentil plants. Isolates of F. oxysporum f. sp. lentis were varied in their virulence. The influences of some agricultural practices on severity of wilt disease in lentil plants were studied under greenhouse and field conditions. In tests of varietals response, all tested Egyptian local lentil cultivars were susceptible to infection in greenhouse and field while the Canadian cultivars (Eston, Laird and Richlea) showed high resistance to the disease. On the other hand, Richlea cv. resulted highly seed yield followed by Sinaa 1. The first of December was more suitable to minimize the infection with wilt disease in greenhouse and field. Sowing lentil at 1st November gave the highest seed yield in both growing seasons. Lentil seeds sowing at depth 2 cm were the most appropriate depth of cultivation where gave the least of wilt severity and recorded the highest seed yield. Increase or a lack of the planting depth led to increase the rate of infection and decreased seed yield.
 
 
 
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