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The Effect of Seed Treatment on Yield and Germination of Garden Peas¹

ABSTRACT

The effects of Spergon treatment and Rhizobium inoculation of five varieties of garden pea seed on the yield and germination of peas in the field and on germination of peas in soil at 40°, 45°, and 50° F. in the laboratory were investigated. Although there was a trend towards increased yield due to either Rhizobium or Spergon treatment and the combination of both treatments gave somewhat better yields than either treatment alone, yield increases were not significant. Spergon treatment increased germination whereas Rhizobium inoculation did not affect germination. As the Maury soil employed evidently contained the correct rhizobia (non-inoculated plants were nodulated), the data presented shed no light on the question of inoculant compatibility with seed treatment.

¹ Contribution from the Agronomy Department, University of Kentucky. Presented before Div. III, Soil Science Society of America, St. Paul, Minn., Nov. 9, 1954.

² Professor of Soils, and Assistant Agronomist, (formerly, Graduate Student) respectively, Kentucky Agr. Exp. Sta. Appreciation is expressed to Dr. D. G. Card of the Kentucky Agr. Exp. Sta. for aid with statistical analyses.

Received for publication March 22, 1955.