Database Research Summaries2018 Breeding of Glyphosate-Resistant Soybean Cultivars
Research Focus
The focus of this project is to provide glyphosate-resistant varieties that will allow growers to save seed for planting in the following year.
Objectives
- Develop glyphosate-resistant experimental seeds.
- Release the cultivars to growers once developed.
Results
- There were 9,150 plant-rows planted in the spring of 2017. In the 2017 growing season, 1,152 new glyphosate-resistant, experimental lines were tested for yield, lodging resistance and maturity. There were 174 experimental lines tested during the second year, of those 174, 30 of them advanced to the third yield of evaluation in the 2018 growing season.
- There were five glyphosate-resistant experimental lines added in Chile, South America. One of the five lines lacked phytophthora root rot resistance. The other four lines are currently being increased.
- The four glyphosate-resistant lines that are currently being increased for seed include: ND15-20996GT with a 0.0 maturity; ND15-25587GT with a 0.4 maturity; ND15-20563GT with a 0.7 maturity; and ND15-22128GT with a 0.7 maturity. The current data shows all four experimental lines are performing well against RR2 check varieties provided by private seed companies.
- There is still other data that needs to be collected from the 2018 growing season, but if the experimental lines continue to perform well, one ore more of the experimental lines will be released in January 2020.
Importance
- Growers would be able to recycle their own seed from the following year, leading to savings in input costs.
- Growers would not need to pay the “technology fee” each year.
For more information about this research project, please visit the National Soybean Checkoff Research Database.
Funded in part by the soybean checkoff.
