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Historical Research Bulletins of the Nebraska Agricultural Experiment Station
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Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
The Relative Susceptibility Of Alfalfas To Wilt And Cold, George L. Peltier, H. M. Tysdal
The Relative Susceptibility Of Alfalfas To Wilt And Cold, George L. Peltier, H. M. Tysdal
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The final solution of the alfalfa-wilt problem in Nebraska probably lies in the development of resistant sorts that are winterhardy as well as productive. The relative susceptibility to wilt of 40 lots from Turkestan, 10 from France, 6 of Grimm from as many states, and 16 domestic alfalfas are reported on at this time, together with hardiness tests of a few well-known varieties and strains and the more recent introductions from Turkestan and France.
Breeding Winter Wheat For Resistance To Stinking Smut (Tilletia Levis And Tilletia Tritici), T. A. Kiesselbach, Arthur Anderson
Breeding Winter Wheat For Resistance To Stinking Smut (Tilletia Levis And Tilletia Tritici), T. A. Kiesselbach, Arthur Anderson
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Several productive lines of hard red winter wheat which are highly resistant to both species of stinking smut (Tilletia levis and T. tritici) have been isolated from the Turkey variety. Artificial-smut and stem-rust epidemics and controlled freezing have been found useful supplements to field-performance tests. Differential reactions of the new Turkey selections and a number of hybrid selections and established resistant varieties to collections of bunt from a number of states give definite evidence of the occurrence of mild and virulent physiologic forms of both species. Certain selections have proved very resistant to some of the smut collections and …
The Food Habits Of The Ring-Necked Pheasant In Central Nebraska, M. H. Swenk
The Food Habits Of The Ring-Necked Pheasant In Central Nebraska, M. H. Swenk
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Pheasants, including the Chinese and the so-called English pheasants, with their hybrid the ring-necked pheasant, have been introduced and established in a large area in the northern United States during the past 50 years. During the past 15 years continued importations of these birds into Nebraska, together with the rapid increase of those already established, have built up a large pheasant population in the state, estimated at more than a million birds. They have especially thrived in a block of 16 counties in east-central Nebraska. Protection was afforded them until 1927, when short open seasons were permitted in the fall …
The Incidence Of Avian Tuberculosis In Mammals Other Than Swine, L. Van Es, H. M. Martin
The Incidence Of Avian Tuberculosis In Mammals Other Than Swine, L. Van Es, H. M. Martin
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The recognition of a very widespread and intense distribution of avian tuberculosis on the farms of a wide area of the United States, as well as the involvement of a mammalian species also, brought to the foreground the question whether or not the great prevalence of poultry tuberculosis could be of importance also from a public health point of view. This phase of the problem not only pertains to the people on the farms but likewise is of fundamental importance to the consumers of poultry produce. European authors had already identified the avian tubercle bacillus in human lesions while in …
The Symptoms Of Spindle Tuber And Unmottled Curly Dwarf Of The Potato, R. W. Goss
The Symptoms Of Spindle Tuber And Unmottled Curly Dwarf Of The Potato, R. W. Goss
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The differentiation of the virus diseases of the potato on the basis of symptoms is an important but difficult phase of the virus problem. A knowledge of the variation in symptoms due to environmental factors is necessary both in investigational work and in the practical application of our knowledge to the control of these diseases in the field. A fairly comprehensive knowledge of the masking effect of certain environmental factors upon the symptoms of the mosaic group has been obtained through the work of various investigators. Considerably less information is available concerning the effect of environment upon the symptoms of …
Economic Aspects Of Contagious Abortion In A Dairy Herd, Department Of Animal Husbandry
Economic Aspects Of Contagious Abortion In A Dairy Herd, Department Of Animal Husbandry
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The object of this study is to present the measurable losses due to abortion in a dairy herd of high-producing ability over a period of approximately one-third of a century. The records available provide a rather complete history of what has taken place.