Research Progress Report 221 February, 1966
Wayne Soybean in Indiana
A. H. Probst, K. L. Athow and F. A. Laviolette, Departments of Agronomy and Botany and Plant Pathology; and Crops Research Division, ARS, U. S. Department of Agriculture
Wayne is a new high-yielding soybean variety intermediate in maturity between Shelby and Clark 63. It has averaged 11% higher in yield than Shelby and 10% higher than Clark 63 in 24 Indiana tests.
Origin and Development
Wayne is a pure-line selection made by R. L. Bernard of the U. S. Regional Soybean Laboratory from the cross L49-4091 x Clark. L49-4091 is a bacterial pustule resistant selection from (Lincoln (2) x Richland) x (Lincoln x CNS). Wayne was tested as selection L57-2222. It was tested cooperatively by the Delaware, Illinois, Iowa, Kansas, Missouri, Nebraska, New Jersey, Ohio and Purdue Agricultural Experiment Stations and the U. S. Regional Soybean Laboratory, Crops Research Division, Agricultural Research Service, USDA. Wayne was released in Illinois, Indiana, Iowa, Kansas, Missouri and Nebraska. It is to be available to Indiana farmers for 1966 planting.
Description
Wayne has medium to large yellow seeds with a black hilum (seed scar). The pods are mainly two and three-seeded, brown, and borne primarily on a central stem with sparse
podding near the base of the stem. The plants are medium to tall in height, fairly erect, with white flowers and brown pubescence. Wayne resembles Shelby, Clark and Kent in the color of seed, hilum, pod, and pubescence. It is readily differentiated from these varieties by its white flower and green hypocotyl color. Wayne is about 14 days later in maturity than Harosoy 63, 4 days later than Shelby, 3 days earlier than Clark 63 and 12 days earlier than Kent.
Performance
This variety was grown in direct comparison with Shelby and Clark 63 in 24 tests at five Indiana locations during 1961 through 1965. Comparisons of several agronomic and chemical characteristics, and disease reactions are given in Table 1 and yield comparisons by locations in Table 2. Under some growth conditions Wayne has a tendency for the stems to remain green after the pods ripen, and in soils with a very high pH, it is apparently more susceptible to iron chlorosis than other common varieties. Quality of Wayne seed has been poorer in some tests than Shelby, Clark 63 or Kent. High yielding ability is the outstanding characteristic of
Wayne.
PURDUE UNIVERSITY • Agricultural Experiment Station • Lafayette, Indiana