Progress 09/30/03 to 07/31/05
Outputs
4d Progress report. This report serves to document research conducted under a specific cooperative agreement between ARS and the Cooperative Extension, University of California. Additional details of research can be found in report for the in-house associated project 5305 21000 011 00D, Evaluation, Enhancement, Genetics, and Breeding of Lettuce, Melons and Closely Related Species. The entire USDA spinach germplasm collection obtained from the USDA-ARS North Central Regional Plant Introduction Station at Iowa State University (338 accessions) was evaluated along with 22 commercial cultivars for resistance to Stemphylium leaf spot disease. None of the commercial cultivars tested consistently showed low levels of disease incidence and severity. Two accessions from Turkey, PI 169685 and PI 173809, consistently had low disease incidence and severity ratings. This research contributes to the objectives of parent project to develop disease-resistant germplasm or cultivars
for spinach.
Impacts
(N/A)
Publications
|
Progress 10/01/03 to 09/30/04
Outputs
4. What were the most significant accomplishments this past year? This report documents research conducted under a specific cooperative agreement with the Cooperative Extension, University of California. Additional details can be found in report for parent project CRIS 5305 21000 011 00D, Evaluation, Enhancement, Genetics and Breeding of Lettuce, Spinach, Melon and Closely Related Species. We have identified virulent isolates and developed screening methods to find sources of resistance to Stemphylium leaf spot disease of spinach. This research contributes to the objectives of parent project to develop disease-resistant germplasm or cultivars for spinach.
Impacts
(N/A)
Publications
|
|