Influence of reduced phytate on the agronomic and seed characteristics of soybean lines with reduced palmitate

dc.contributor.author Hulke, Brent
dc.contributor.department Agronomy
dc.date 2020-11-09T01:13:07.000
dc.date.accessioned 2021-02-26T08:55:50Z
dc.date.available 2021-02-26T08:55:50Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2004
dc.date.issued 2004-01-01
dc.description.abstract <p>Non-ruminant animals fed soybean [Glycine max (L.) Merr.] meal cannot metabolize the phosphorus (P) that is in the form of phytate. A soybean line CX1834-1-6 was developed that had a major reduction in phytate P and a concomitant increase in inorganic P, which is available to non-ruminants. The objective of this study was to determine the impact of low phytate (LP) on agronomic and seed traits of lines with reduced palmitate in the seed oil. A backcross population of soybean was developed by crossing CX1834-1-6 to a reduced-palmitate line B01769B019 and backcrossing the F1 plants to B01769B019. Twenty BC1F2-derived lines with LP and reduced palmitate and 20 lines with normal phytate (NP) and reduced palmitate from the population were evaluated at three Iowa environments in 2003. The LP lines had a mean seedling emergence that was 22.3 percentage units less than the NP lines. Although the plant density of the LP lines was less than the NP lines, the mean yield of the two types was not significantly different. The palmitate and stearate content of the LP lines was significantly greater than that of the reduced-palmitate parent. The reduced emergence and greater saturate content of the LP lines may make it difficult to develop acceptable cultivars for production of LP soybean meal and low-saturate oil.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/20616/
dc.identifier.articleid 21615
dc.identifier.contextkey 20115057
dc.identifier.doi https://doi.org/10.31274/rtd-20201107-173
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/20616
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/97983
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/20616/Hulke_ISU_2004_H85.pdf|||Fri Jan 14 22:26:44 UTC 2022
dc.subject.keywords Agronomy
dc.subject.keywords Plant breeding
dc.title Influence of reduced phytate on the agronomic and seed characteristics of soybean lines with reduced palmitate
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
thesis.degree.discipline Plant Breeding
thesis.degree.level thesis
thesis.degree.name Master of Science
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