BIOLOGICAL SEED TREATMENTS FOR CONTROLLING MAJOR PEANUT (Arachis hypogaea L.) SEED-BORNE FUNGI | ||||
| Journal of Plant Production | ||||
| Article 9, Volume 28, Issue 8, August 2003, Page 6065-6074 PDF (14.55 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2003.244796 | ||||
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| Authors | ||||
| M. I. Ghonim,; I. H. EI-Abbasi; A. A. EI·Wakii | ||||
| Seed Pathol. Res. Dept., Plant Pathology Res. Inst., ARC, Egypt | ||||
| Abstract | ||||
| Seed-borne mycoOora of peanut (Arachis hypogaea L.) cullivar Giza 5 WI;II e surveyed in 3 major Egyptian production areas. Seed health test of the collected samples from Sharkyia. Ismailia and North Sinai revealed 18 seed-borne fungi. Major pathogenic seed-borne fungi were tested for their pathogenicity after 15, 30 and 60 days of planting under greenhouse conditions. which proved that Rhizoctonia soiani was the most serious pathogen affecting the healthy survival percentage. followed by Macrophomina phaseolina. Fusarium so/anl and Sclerotium roJlsii. Fusarium oxysporum was the least dangerous fungus in this respect. In greenhouse experiments, the blo-control agents Trichoderma harzianum and BaciUus subliJis were experimented to control S. ro/fsii, F. oxysporum and M. phaseo/ins using seed coat treatment combined with soil sterilization. Complete elimination or the three pathogens was achieved when anyone of the two ole-control agents was used as seed treatment under certain condluon of soil sterilization; otherwise, different levels of control were recorded. Examining shells and seeds yield for the presence of the previously concemed pathogens proved that controlling soil-borne inocula was very important base line to accomplish complete conlrol of seed-borne mycofiora using biological seed treatment. | ||||
| Keywords | ||||
| Peanut; seed health test; biological seed trealment. Trichoderma harzianum; Bacillus subti/is | ||||
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