1a.Objectives (from AD-416):
To improve selection methods for high-yielding protein soybean varieties, populations for northern and southern varieties with higher protein and lower phytic acid, and improve the amino acid composition of seed proteins.
1b.Approach (from AD-416):
Continuation of breeding programs to combine or introduce genes that enable development of agronomic soybean germplasm with superior meal attributes that include increased total metabolizable energy, improved essential amino acid balance, and enhanced digestibility for feed applications. Research involving DNA marker methodology will be subcontracted through SCA to cooperators at UT, UGA, and NCSU.
This project is related to Objective 2 of the in-house project: To discover novel genes/alleles in soybean for seed composition, determine their inheritance, determine genomic location, transfer to adapted germplasm, and release.
The low phytate line N04-05N41 yielded 95% of the roundup ready (RR) check AGS606RR in the Maturity group (MG) VI Southern Regional Preliminary yield trials. The high protein line NLM09-52 yielded 90% of the check N7003CN in the MG VII Southern regional preliminary trials. NLM09-52 had the highest protein content of all entries in the test (44.8% on a dry weight basis). F4-derived lines from four new high protein populations (Danbaekong X N6202 derived) have been analyzed for total protein content. Lines ranged from 40-47% total protein content. Selected lines from these populations will be evaluated in replicated yield trials during the 2013 field season.
The Authorized Departmental Officer's Designated Representative monitored activities of project through frequent phone calls and emails, two formal meetings, site visits, and through quarterly reports.