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Full-Text Articles in Agronomy and Crop Sciences
The Effects Of Irradiating Dormant Maize Seeds With Xrays And Thermal Neutrons, Rosalind Morris, E. F. Frolik
The Effects Of Irradiating Dormant Maize Seeds With Xrays And Thermal Neutrons, Rosalind Morris, E. F. Frolik
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
In 1951 a research program was started at the University of Nebraska to compare the developmental effects of thermal neutrons and X rays on different crop seeds. Three crops, barley, tomato and maize, were chosen for additional information involving induced chromosomal aberrations and seedling mutations. The maize investigations are presented in this bulletin, along with a comparison among the three crops with respect to irradiation effects.
The Performance Of Alfalfa Synthetics In The First And Advanced Generations, W. R. Kehr, H. O. Graumann, C. C. Lowe, C. O. Gardner
The Performance Of Alfalfa Synthetics In The First And Advanced Generations, W. R. Kehr, H. O. Graumann, C. C. Lowe, C. O. Gardner
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
During alfalfa breeding investigations conducted at the Nebraska Agricultural Experiment Station, numerous superior clones were selected and tested as clones, and in polycross progeny tests. Information was needed on the performance of synthetic varieties in the first and advanced generations, on the optimum number of clones to include in a synthetic variety, and on parent-progeny relationships. Clones with high general combining ability for forage yield as measured by polycross progeny tests, and in certain instances specific combining ability based on single-cross tests, were intercrossed in various ways to produce synthetic varieties. A group of synthetics varying in number of parents …
Progress From Recurrent Selection Procedures For The Improvement Of Corn Populations, John H. Lonnquist
Progress From Recurrent Selection Procedures For The Improvement Of Corn Populations, John H. Lonnquist
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The possibilities of developing synthetic varieties suitable for the fringe areas of the corn belt, where cost of hybrid seed is high relative to the value of the expected crop, and in areas where hybrid corn might not be a feasible approach for other reasons, made it seem a worthwhile objective for study. Effort has been made in recent years to increase the productivity of hybrid combinations through selection of new superior lines using standard breeding procedures. The limited progress realized has resulted in an increased interest in the possible use of alternate methods for the development of superior germplasm …
Laotian Agricultural Statistics, Joel Halpern
Laotian Agricultural Statistics, Joel Halpern
Anthropology Department Faculty Publication Series
No abstract provided.
Pensternon In Your Garden, Glenn Viehmeyer
Pensternon In Your Garden, Glenn Viehmeyer
Department of Agronomy and Horticulture: Faculty Publications
A new race of hardy perennials is beginning to appear in American gardens. These are the penstemons, a genus of plants closely related to the familiar snapdragon, which may become important ornamentals as they become better known to gardeners. The purpose of this bulletin is to show the possibility of the genus as an ornamental and to suggest species and species hybrids of possible value to Great Plains gardeners; to provide information about propagation and culture; and to encourage gardeners to engage in penstemon breeding as an avocation.
Microorganisms And Soil Structure, T. M. Mccalla, F. A. Haskins
Microorganisms And Soil Structure, T. M. Mccalla, F. A. Haskins
Department of Agronomy and Horticulture: Faculty Publications
SUMMARY
Good stable soil structure is valuable for promoting the growth of plants and micro-organisms by permitting enhanced aeration and water penetration and by decreasing erosion under some conditions.
Micro-organisms influence water percolation through the soil. They may plug up soil pores with byproducts of growth and reduce water percolation. On the other hand, if a soil containing a large amount of microbial products is stirred and allowed to dry, then the percolation may be high.
Micro-organisms are involved in stabilizing soil structure by their products of decomposition and their cellular binding material, such as mycelia. Microorganisms differ greatly in …