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Articles by E.A.M. Ibrahim
Total Records ( 2 ) for E.A.M. Ibrahim
  Amal A.A. EL-Mahady , M.S. Abo EL-Dahab and E.A.M. Ibrahim
  The present study was conducted at Laboratory of Seed Technology Research Unit, Mansoura, Seed Technology Research Department, ARC, Egypt during 2013. Organic acids are known for their antibacterial and antifungal properties. The purpose of the research was to study, the effect of salicylic acid and benzoic acid and propionic acid treatment on rice seed germination, vigor and infestation with fungi. Seed samples cultivars Giza 178, Giza 177 and Sakha 106 were soaked with organic acid solutions at concentrations 10, 15, 20 mM and control were soaked in distilled water for 24 h to each treatments. Giza 178 cv. gave the highest results of seed and seedling vigor characters followed by Giza 177 cv. and Sakha 106, respectively. Seed treatment with salicylic acid 15 mM was the best treatments followed by benzoic acid 10 mM and propionic acid 15 mM recorded the highest values of seed germination, seed and seedling vigor as concentrations. SA reduced seed infestation with fungi with increasing concentrations followed by propionic acid and benzoic acid, respectively. However, increased to propionic acid concentration were negatively affected seed germination and vigor with all cultivars.
  E.A.M. Ibrahim
  This study was carried out in order to evaluate effect of treating soybean seed (Glycin max L.) as seed coating with fungicidal (Vetavax-thiram 200), seed dressing with biotic (Bio-arec, Bio-zeid) and seed soaking with abiotic (Salicylic acid) in controlling fungal diseases and improving seed and seedlings vigor of cultivars (Giza 21, G.35, G.111, G.22, G.82, Klark, Crawford) . The obtained results showed that, Alternaria spp., Aspergillus spp., Cercospora kikuchii, Diaporthe sojae, Fusarium moniliforme, F. semitectum, F. solani, F. oxysporum, Macrophomina phaseolina, Rhizoctonia solani and Penicillium spp., were associated with soybean seed with different percentage. All treatments gave high significant p≤0.05 protection against seed-borne fungi in seed and seedling health evaluation test when applied seed treatments compared with control. Vitavax-200 was the most effective where lead to eliminated the mentioned fungi completely and improve of seed and seedling vigor characters. Giza 21 cv. recorded the less value borne of total fungi as compared of cultivars. Biotic reduced numbers of fungi and gave protection against pathogenic fungi and increased values seed and seedling vigor of soybean cultivars. Giza 82 cv. showing better seed and seedling vigor and less seed infection by pathogenic fungi in seedling health evaluation test. Fusarium moniliforme has been widely and most frequently with seed rot followed by F. semitectum. Fusarium solani was responsible for greater proportion of abnormal seedlings followed by F. oxysporum. Abiotic salicylic acid played important role in enhancing seed vigor, increased seedling length, dry weight of seedlings, reduced number of total fungi on seed and diseases incidence in seedlings (abnormal seedlings, seed rot).
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