IDENTIFICATION OF RESISTANT SORGHUM GERMPLASM FROM THE USA AND WEST AFRICA TO LONG SMUT AND GRAIN MOLD
Crop Germplasm Research
2010 Annual Report
1a.Objectives (from AD-416)
The objective of this cooperative research project is to evaluate sorghum germplasm in several locations in Senegal and Gambia for resistance to long smut and grain mold.
1b.Approach (from AD-416)
Exotic and adapted sorghum accessions will be planted in several locations in Senegal and Gambia and evaluated for disease reaction. U.S. sorghum germplasm and inoculation protocol will be provided by the ARS cooperator. Weather data will be collected from each location. Data will be analyzed, and comparison among the accessions based on maturity groupings and other agronomic traits will be recorded.
The goal of this project is to identify resistant sources to long smut and grain mold among U.S. and West Africa sorghum germplasm resources. In FY 2010, more than two dozen sorghum germplasm lines, including new commercial hybrids, cultivars, and sorghum types, were evaluated for resistance against long smut and grain molding fungi in two regions of Senegal, West Africa. Due to weather conditions not conducive to fungal establishment and growth, there was little or no long smut infection. The various sorghum types were also rated for grain mold resistance, with 1 = no mold and 5 = very moldy. Eight lines were rated as either a 1 or a 2 in one of the regions (Bambey), while 17 lines were rated as either a 1 or a 2 at the other region (Nioro). The results show that these lines may be useful in sorghum enhancement programs.
The ADODR of this project and the cooperator maintain regular communications by phone and e-mail, where progress of the work is discussed and evaluated, and where solutions to work impediments are developed. The ADODR and the cooperator meet at annual visits to experimental sites, etc., where the work is discussed and evaluated.