تاثير المصدرين الكاربوني والنايتروجيني على انتاج حامض الاندول خليك IAA من العزلة المحلية Fusarium oxysporum F2
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NONAbstract
Local Fungal (13)isolates of Fusarium were screened for production of plant hormone based on its high production of growth regulator IAA which was reach 5.79 g/ml .The production of growth regulator (IAA) from strain F. oxysporum F2 was study by using different growth medias , the glucose mineral medium gave high production. The carbon source and concentration were studied, sucrose gave 10.64 g IAA/ml when used as carbon source with 4.5% concentration.The nitrogen source and concentration were studied; the yeast extract gave 27.34 g IAA / ml when used as nitrogen source with 0.6% concentration