Project Number: 3096-21000-019-08-R
Project Type: Reimbursable Cooperative Agreement
Start Date: Jan 1, 2013
End Date: Dec 31, 2013
1. Identify the range of diversity for drought tolerance and disease resistance on selected entries within the USDA-ARS Cotton Germplasm Collection. 2. Identify and/or develop lines with stacked drought tolerance and disease resistance traits for release to public and private cotton breeding programs.
Drought responses of progeny, breeding lines, germplasm, and cultivars will be conducted for Upland, Acala, Pima, and intra- and interspecific progeny. Field evaluation of water stress responses will be through the use of an assay first described by Burke (2007), and later modified for faster screening (Burke, 2010). A series of laboratory and greenhouse experiments will be conducted to identify environmental factors such as temperature, inoculum level, and exposure of time (days after inoculation) that influence pathogenicity and virulence during plant infection.