Life Sciences Commons^™

Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

It is the purpose of this bulletin to report the investigations that have been made correlating soil properties and fertilization practices with yields of winter wheat. Since the success or failure of fertilization practices is so dependent on specific soil conditions, an attempt has been made here to further characterize the major soils of the different sections of the state which are devoted to wheat production and to analyze fertilizer practices and results in relation to the soil properties determined. The data are summarized for the four sections of the state designated as southeastern, east-south-central, west-south-central and western Nebraska. These …

The Use Of The Monoploid Method For The Production Of Homozygous Diploid Lines Of Corn, Melvin Dale Rumbaugh

Open Access Master's Theses (through 2010)

The development of a practical method of breedings corn through the utilization of homozygous lines obtained from the doubling of monoploids will depend upon the obtaining of a reasonably high rate of monoploids from any particular stock, representing desirable gametes for corn production, and on the successful doubling of such monoploids. This study is an investigation of various aspects of these problems.

Approximately one hundred twenty thousand individual plants representing the progenies of eighteen crosses of corn were examined for monoploid sporophytes. Monoploids were found to occur at a mean frequency of 0.82 per thousand seedlings screened. Significant differences in …