Genetic and Seed Treatment Effects in Organic Peanut

• DOI: 10.3146/ps11-5.1
• Publication Date: 2011-12-21T16:39:20Z
• Authors: E.G. Cantonwine; C.C. Holbrook; A.K. Culbreath; R.S. Tubbs; M.A. Boudreau
• Keywords: 0106 biological sciences; 2. Zero hunger; 01 natural sciences

ABSTRACT Stand establishment has been a challenge for organic peanut production in the Southeastern United States. Field experiments were conducted 2007 and 2009 research plots certified to evaluate potential of genotype selection, shelling procedure, seed treatment with Bacillus subtilis improve stand seedling emergence rates, reduce incidence Aspergillus crown rot, increase biomass. Seed 15 genotypes mechanically shelled or hand-shelled, treated B. untreated prior planting early June. Percent was estimated each plot 17–21 days after (DAP), percent seedlings affected by rot plant biomass 21–24 DAP. significantly three year, Georgia-01R both years, C-99R Tifguard 2007, C34-24-69 C724-19-25 2009. In all these cases, hand-shelled had greater stands than and/or seed. improved two treatments that responded hand shelling. Despite low incidence, there significant reduction compared across years genotypes. The cultivar Georganic, which planted systems Georgia recent among lowest rates Based on results, it is recommended sorting thresholds damaged be higher destined production, breeding efforts include assessments factors involved growth prioritized.