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Full-Text Articles in Life Sciences
A Preliminary Study On Ensiling Aspen Bark, Charles Helleloid, John Klow, Gary Pullar, John Veranth
A Preliminary Study On Ensiling Aspen Bark, Charles Helleloid, John Klow, Gary Pullar, John Veranth
Journal of the Minnesota Academy of Science
A preliminary study was conducted on the ensiling of aspen bark in laboratory silos for the production of animal food. Several types of silo, both with and without an enzyme preparation, were tested. Results of physical and chemical tests on the contents indicate that definite changes occur when bark is ensiled, and that these changes differ with ensiling conditions. Several of these changes suggest possibilities for future research.
Mature Pine Forests In Duluth Harbor Area, Donald W. Davidson, John B. Bernard
Mature Pine Forests In Duluth Harbor Area, Donald W. Davidson, John B. Bernard
Journal of the Minnesota Academy of Science
Quantitative and qualitative studies have been made on mature pine forests of selected areas on Minnesota Point and Wisconsin Point in the Duluth-Superior Harbor area. The forests were sampled by the point quarters method. The leading dominant in the Minnesota forest was Pinus resinosa, while the leading dominant in the Wisconsin forest was Pinus strobus. Trees up to 173 years of age were found on Minnesota Point, while the maximum age of the trees sampled on Wisconsin Point was 142 years. A total of 87 species of vascular plants were identified in the two areas.
Scotch Pine: Variation And Performance In Minnesota, Muhammad A. K. Khalil
Scotch Pine: Variation And Performance In Minnesota, Muhammad A. K. Khalil
Journal of the Minnesota Academy of Science
Scotch pine exhibits clinal variation from north to south in two characteristics: viz., the number of days after April 15 to the time of maximum rote of height growth, and total height after the age of 17 years. There is east-west clinal variation with respect to two characteristics: viz., the number of days after April 15 to the beginning of height growth, and to the time of the maximum rote of height growth. The twelve out of the fifteen varieties analyzed showed the existence of valid sub-varieties or ecotypes. Varieties from central Europe were the fastest growing in each of …
Dwarf Mistletoe Parasite In Spruce, F. H. Tainter, D. W. French
Dwarf Mistletoe Parasite In Spruce, F. H. Tainter, D. W. French
Journal of the Minnesota Academy of Science
Locations of all known major infection centers of dwarf mistletoe (Arceuthobium pusillum) in Minnesota are presented and compared to botanical ranges of important hosts. A brief summary of disease symptoms and identification of the parasite are included.
Records Of The Higher Fungi Of Minnesota, Margaret G. Weaver, Robert L. Shaffer
Records Of The Higher Fungi Of Minnesota, Margaret G. Weaver, Robert L. Shaffer
Journal of the Minnesota Academy of Science
This paper, presenting an annotated list of 203 species of Ascomycetes and Basidiomycetes of Minnesota, is the first published report of the occurrence of many of the species in the state. The collections on which the list is based were made in five Minnesota counties and are deposited in the senior author's herbarium at Faribault, Minnesota, and in the University of Michigan Herbarium at Ann Arbor, Michigan.