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Full-Text Articles in Life Sciences
Distribution, Abundance, Status, And Phytogeography Of Log Ferns (Dryopteris: Woodsiaceae) In Arkansas, James H. Peck, Carol J. Peck
Distribution, Abundance, Status, And Phytogeography Of Log Ferns (Dryopteris: Woodsiaceae) In Arkansas, James H. Peck, Carol J. Peck
Journal of the Arkansas Academy of Science
A study of the distribution, abundance, status, and phytogeography of the six taxa of Log Ferns {Dryopteris: Woodsiaceae) that are known to occur in Arkansas was conducted from 1981 -1986. Five of these ferns are generally quite rare in Arkansas. Except for D. marginalis, all exist in Arkansas as small, peripheral populations that are marginal, outlier populations to the west and south or west and north of their metropolis. Two sterile, triploid hybrid taxa (D. X australls and D. X leedsii each occur at only one locality, and there with but one of their parent taxa. The population of the …
Control Of Herbaceous Competitors In Progeny Tests Using Container-Grown Seedlings, Jimmie L. Yeiser, J. W. Boyd, D. J. Reed
Control Of Herbaceous Competitors In Progeny Tests Using Container-Grown Seedlings, Jimmie L. Yeiser, J. W. Boyd, D. J. Reed
Journal of the Arkansas Academy of Science
Container-grown and May-planted seedlings of loblolly and shortleaf pines were treated with herbicides for control of herbaceous competitors. Weed control and seedling growth were evaluated. Competitor control was good for all treatments. Survival and growth of pines differed by species and herbicide treatment. The best treatment for both species included covering seedlings and spraying competitors with glyphosate. Both species showed decreased survival and growth when treated with medium and high rates of hexazinone + sulfometuron methyl.
Survival And Growth Two Years After Control Of Herbaceous Competitors In Newly Planted Seedlings Of Loblolly Pine, Jimmie L. Yeiser, J. W. Boyd
Survival And Growth Two Years After Control Of Herbaceous Competitors In Newly Planted Seedlings Of Loblolly Pine, Jimmie L. Yeiser, J. W. Boyd
Journal of the Arkansas Academy of Science
Early or late over-the-top applications of herbicides were used to control herbaceous competition in machine planted loblolly pine (Pinus taeda L) seedlings at two locations in a pasture near Alleene and hand planted seedlings on a bedded site near Fouke. Sites were selected for diverse competitors. None of the treatments controlled weeds for the entire growing season. Only glyphosate + sulfometuron methyl produced seedling survival and growth below the check plots. The best over-the-top treatments were sulfometuron methyl alone or sulfometuron methyl + hexazinone.
Additions To The Known Endemic Flora And Fauna Of Arkansas, Robert T. Allen
Additions To The Known Endemic Flora And Fauna Of Arkansas, Robert T. Allen
Journal of the Arkansas Academy of Science
Robison and Smith's (1982) list of endemic species of Arkansas rendered a valuable service to the community of biologists interested in the endemic biota of the state. These authors listed seven species of plants and forty species of animals endemic to Arkansas. This paper stimulated my interest in the endemic biota of the Ozark/Ouachita Mountain region of Missouri, Arkansas, and Oklahoma. During the course of compiling a list of Ozark/Ouachita endemic species several references were found that listed Arkansas endemic taxa inadvertently overlooked by Robison and Smith. Most notable among these references was Chamberlin and Hoffman (1958), Checklist of the …
Bibliographic Summary Of Arkansas Field Botany, James H. Peck, Carol J. Peck
Bibliographic Summary Of Arkansas Field Botany, James H. Peck, Carol J. Peck
Journal of the Arkansas Academy of Science
Over 750 references, compiled over the past five years, are presented on floristics, taxonomy, autecology, synecology, species biology, habitat analysis, impact analysis, paleoenvironment, phytogeography, and history of field botany in Arkansas. This bibliography is reported to facilitate efforts to document and interpret the flora, the vegetation, and the natural heritage of Arkansas and to encourage others to participate in that collective effort.
Notes On The Biology Of Thyanta Claceala (Hemiptera: Pentatomidae) On Tephrosia Virginiana (Leguminosae), A New Host Plant, Phoebe A. Harp, Harvey E. Barton
Notes On The Biology Of Thyanta Claceala (Hemiptera: Pentatomidae) On Tephrosia Virginiana (Leguminosae), A New Host Plant, Phoebe A. Harp, Harvey E. Barton
Journal of the Arkansas Academy of Science
No abstract provided.