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Iowa State University

Soybean

Plant Biology

Retrospective Theses and Dissertations

Publication Year

Articles 1 - 4 of 4

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Mycorrhizal Fungi-Bradyrhizobium-Soybean Tripartite Symbiosis In Iowa Soils , Samina Khalil Jan 1991

Mycorrhizal Fungi-Bradyrhizobium-Soybean Tripartite Symbiosis In Iowa Soils , Samina Khalil

Retrospective Theses and Dissertations

Soybean [Glycine max (L.) Merr.] makes use of two important symbiotic microbial systems: the rhizobial system, in which Bradyrhizobium japonicum fix atmospheric N2 in root nodules, and the vesicular-arbuscular mycorrhizal system, in which VAM fungi increase uptake of phosphate and/or other nutrients from the soil or improve plant drought tolerance. Research has confirmed the advantage of bradyrhizobial and mycorrhizal associations in N and P deficient soils; however, these associations may be inhibitory, or have little effect on plant growth in well-fertilized soils. In Iowa over the past 30-40 years, farmers have been adding large quantities of fertilizers to get ...


Effect Of Growth Regulators On Reproduction In Soybeans , Howard A. L. Greer Jan 1964

Effect Of Growth Regulators On Reproduction In Soybeans , Howard A. L. Greer

Retrospective Theses and Dissertations

No abstract provided.


Floral Induction In Soja Max , John Edwin Fisher Jan 1953

Floral Induction In Soja Max , John Edwin Fisher

Retrospective Theses and Dissertations

No abstract provided.


Translocation In Soybean Plants , Leo Preston Vernon Jan 1951

Translocation In Soybean Plants , Leo Preston Vernon

Retrospective Theses and Dissertations

No abstract provided.