1a.Objectives (from AD-416):
Facilitate cooperative research between the United States Department of Agriculture (USDA), Agricultural Research Service (ARS) and Instituto Paraguayo De Tecnologia Agraria - IPTA identifying and developing rust resistant soybean lines.
1b.Approach (from AD-416):
Collaborator research units have been identified at national research institutions in both Paraguay and the U.S. who will conduct this research. These include the Centro Regional de Investigación Agrícola (CRIA) in the Instituto Paraguayo de Tecnolgia Agraria (IPTA) and the Crop Genetics Research Unit of the Agricultural Research Service (ARS) of the U.S. Department of Agriculture (USDA).
The research is directed toward identifying new sources of resistance, development and phenotyping of segregating genetic populations and the development, phenotyping and testing of resistant breeding lines.
The primary objective of this research is to identify and develop rust resistant soybean germplasm. In this reporting period, field experiments were established at the Paraguayan research station Centro Regional de Investigación Agrícola, in Capitán Miranda, Paraguay. In addition to continued evaluation of breeding lines and populations segregating for rust resistance, the second year of a fungicide spray/no spray experiment with a recombinant inbred population was established to investigate quantitative genetics of rust tolerance. The data is now being analyzed. Molecular marker work on the population is continuing.