الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Peanut (Arachis hypogaea L.) is an important ancient crop. It is originated in South America, probably in Brazil and was also cultivated by Native Americans. The direct impact of seedborne fungi on peanut production is considerably high. Several fungi are acting as serious parasites on seed primordial and maturing seeds. They reduce the yield of seed both quantitatively and qualitatively. Other fungi, including saprophytes and very weak parasites but may lower the quality of seeds. The following types of symptoms are: (1) seed abortion; (2) shrunken seeds and reduced seed size; (3) seed rot; (4) sclerotistion of stromatisation of seed; (5) seed necrosis; (6) seed discoloration; (7) reduction or elimination of germination capacity; (8) physiological alternations in seed. The main outcome of this study is to help peanut growers to produce high quality, diseases free seeds and increase the productivity of their crop. Farmers and producers should understand the role of using healthy seeds in their production and how to control seedborne diseases. Healthy seeds definitely play an important role in increasing sustainable food production. For this reason, the present work was planned to: 1 Detect and identify the seedborne fungi of peanut by using the standard blotter and deepfreezing blotter methods recommended by (ISTA, 1996), and search for alternative methods of seed health testing to detect lurked seedborne pathogens. 2 Study the effect of some common antioxidants as well as GAWDA2 formulation on seedborne fungi isolated from seeds in an effort to reduce or at least retard their development to lesser their eventual impact. 3 Study the effect of GAWDA2 formulation, organic fertilizers (compost), Nfixer (Rhizobium) and their combination on the control of seedborne fungi of peanut in vitro and in vivo. 4 Study the effect of GAWDA2 formulation and one organic fertilizer (compost 1) under three levels of nitrogen on seedborne diseases of peanut.