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United States Department of Agriculture

Agricultural Research Service

Research Project: Cooperative Evaluation of Soybean Lines for Rust Resistance in Paraguay

Location: Crop Genetics Research

2012 Annual Report

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.

3. Progress Report:
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, (Regional Agricultural Research Center) in Capitán Miranda, Paraguay. In addition to continued evaluation of breeding lines and populations segregating for rust resistance, a fungicide spray/no spray experiment with a recombinant inbred population was established to investigate quantitative genetics of rust tolerance. This is the first year of an expected two year experiment. The data is now being analyzed.

4. Accomplishments

Last Modified: 10/18/2017
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