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Articles 241 - 264 of 264
Full-Text Articles in Plant Sciences
Effectiveness Of Tile Drainage On A Fragipan Soil In An Orchard Site, Gerald D. Brown, Dwight E. Wolfe, Lloyd W. Murdock
Effectiveness Of Tile Drainage On A Fragipan Soil In An Orchard Site, Gerald D. Brown, Dwight E. Wolfe, Lloyd W. Murdock
Agronomy Notes
Orchards require a well-drained soil in order for roots to have good aeration and to function properly. The soil is unsatisfactory for orchard purposes if the water table remains within six inches to a foot of the soil surface for a week after a heavy spring rain, or within three feet of the surface for several weeks after growth starts. Poor internal water drainage is a limiting factor for many sites. In Kentucky, many orchards are on soils with a fragipan which result in perched water tables near the surface during winter and spring months. Perched water tables exist above …
Macrophyte-Macroinvertebrate Interactions In A Lentic Ecosystem And The Effect Of Fluridone Treatment To Control Myriophyllum Spicatum L., Gregory J. Moeller
Macrophyte-Macroinvertebrate Interactions In A Lentic Ecosystem And The Effect Of Fluridone Treatment To Control Myriophyllum Spicatum L., Gregory J. Moeller
Dissertations and Theses @ UNI
Myriophyllum spicatum L. is an exotic macrophyte that can become pestiferous in lentic ecosystems. Two field studies were conducted to investigate: 1) epiphytic macroinvertebrates associated with M. spicatum and native macrophytes; and 2) epiphytic macroinvertebrate community response to fluridone treatment for M. spicatum control.
In the first study evaluating epiphytic macroinvertebrates associated with M. spicatum and native macrophytes, triplicate samples were collected at three sites in both Auburn and Zumbra Lakes, Minnesota, USA. One site in each lake contained primarily M. spicatum, the second site contained M. spicatum and native vegetation, and the third site was dominated by native …
Twenty-Five Year Index To The Prairie Naturalist, Volumes 1-25, 1968-1993, Paul B. Kannowski
Twenty-Five Year Index To The Prairie Naturalist, Volumes 1-25, 1968-1993, Paul B. Kannowski
The Prairie Naturalist
Forward
Author Index
1.Articles and Notes
2. Book Reviews
3. Editorials
Subject Index
Geographic Index
Taxonomic Index
Plants
Animals
Other Records
An Analysis Of The Variation Within Cratoxylum Arborescens (Clusiaceae) In Malesia, A.C. Church, P.F. Stevens
An Analysis Of The Variation Within Cratoxylum Arborescens (Clusiaceae) In Malesia, A.C. Church, P.F. Stevens
Biology Department Faculty Works
The variation within the widespread West Malesian species Cratoxylum arborescens (Vahl) Blume was analyzed and three distinctive variants were found. These are recognized formally as varieties, var. arborescens, var. miquelii King, and var. borneense A.C. Church & P.F. Stevens. A key and full descriptions are given. The characters employed to delimit the three taxa are discussed and the selection of varietal rank is justified.
Establishment Of Kura And Red Clover On A Soil And Mine Spoil, David C. Ditsch, Michael Collins, Norman L. Taylor
Establishment Of Kura And Red Clover On A Soil And Mine Spoil, David C. Ditsch, Michael Collins, Norman L. Taylor
Agronomy Notes
Numerous benefits result from the addition of forage legumes to livestock diets. Superior nutritive value and intake of legume forage generally increase individual animal productivity compared with grass alone. This is particularly important with tall fescue where dilution of the diet with legumes can partially alleviate toxicosis associated with endophyte fungus infected fescue (Acremonium coenophialum). Unfortunately, short-term persistence of most legumes requires periodic reestablishment, adding to the cost of forage production and complicating pasture management.
Particle Size And Temperature Affect Fecal Bacteria Survival In Sediment, Mark S. Coyne, J. M. Howell, P. L. Cornelius
Particle Size And Temperature Affect Fecal Bacteria Survival In Sediment, Mark S. Coyne, J. M. Howell, P. L. Cornelius
Agronomy Notes
When cattle have direct access to streams, fecal bacteria concentrations in stream sediments increase. If these bacteria persist, and if the sediments are resuspended, fecal bacteria may also appear in surrounding water for extended periods. Why do fecal bacteria persist, since dry conditions, high acidity or alkalinity, sunlight, competition from native microbes, and extreme temperatures all diminish their populations in soil? The effects of these environmental factors are much reduced in sediment. Water protects fecal bacteria from desiccation and ultraviolet light. High temperatures can promote their regrowth in wet environments. Fecal bacteria also survive on fine-sized sediments in streams because …
The Nutritional Characterization Of The Carob Tree In The Department Of Cochabamba, Karem Khaterine Loma Mercado
The Nutritional Characterization Of The Carob Tree In The Department Of Cochabamba, Karem Khaterine Loma Mercado
Theses and Dissertations
The nutritional value for the following species have been determined: P.pallida, P.laevigata var. andicola, P.flexuosa, P.nigra, P.alba of the genus Proposis. To obtain this purpose surveys were done about the use and consumption of the Carob Tree in the High and Central Valleys of the Cochabamba Department. As a result of the surveys it was determined that the consumption of the pods made up for 54% of human nourishment. The species that were consumed the most were P.pallida and P.laevigata var. andicola. Within the uses of these leguminous pods, the pods are directly consumed in their raw form and on …
River Birch, Red Birch Betula Nigra L., Gene Silberhorn
River Birch, Red Birch Betula Nigra L., Gene Silberhorn
Reports
The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen ident
Factors Affecting Atrazine Fate In North Central U.S. Soils, W. C. Koskinen, Sharon Clay
Factors Affecting Atrazine Fate In North Central U.S. Soils, W. C. Koskinen, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Atrazine (6-chloro-N-ethyl-N′-(l-methylethyl)-l,3,5-triazine-2,4-diamine) is a herbicide of the triazine family used for controlling broadleaf and some grassy weeds in corn and sorghum. Since its introduction in the late 1950s, atrazine has been a popular herbicide because it is relatively inexpensive and, in most cases, gives good season-long weed control. It can be applied pre-or postemergence and is often tank mixed with grass herbicides, such as alachlor (2-chloro-N-(2,6-diethylphenyl-N-(methoxymethyl)acetamide), metolachlor(2-chloro-N-(2-2ethyl-6-methylphenyl)-N-(2-methoxy-l-methylethyl) acetamide), butylate (S-ethyl bis(2-methylpropyl)carbamothioate), or EPTC (S-ethyl dipropylcarbamothioate), or with other broadleaf herbicides, such as dicamba (3,6-dichloro-2-methoxybenzoic …
Systematic And Population Genetic Analyses Of Northern Vs Southern Yellow Lady's Slippers (Cypripedium Parviflorum Vars Parviflorum, Pubescens, And Makasin): Inference From Isozyme And Morphological Data, Lisa Ellen Wallace
Dissertations, Theses, and Masters Projects
No abstract provided.
Defusing The Salt Time Bomb, David Berry
Defusing The Salt Time Bomb, David Berry
Journal of the Department of Agriculture, Western Australia, Series 4
Practical adviser to famers about managing salt affected soils on their property.
Biological Species Concepts In Eastern North American Populations Of Lentinellus Ursinus, Andrew N. Miller
Biological Species Concepts In Eastern North American Populations Of Lentinellus Ursinus, Andrew N. Miller
Masters Theses
As part of a biosystematic study of the Lentinellus ursinus species complex, field and herbarium specimens from North America, Central America, and Europe were examined. Single basidiospore isolates from basidiomata collected in Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Tennessee, North Carolina, Wisconsin, Costa Rica, and Austria were crossed in all possible combinations to determine the mating system operating in each population. All populations exhibited bifactorial or tetrapolar mating systems. Tester strains were then crossed to identify intercompatible populations and to determine if morphological species in the L. ursinus species complex are congruent with biological species. Three biological species were recognized …
Kansas Fertilizer Research 1996, Ray E. Lamond
Kansas Fertilizer Research 1996, Ray E. Lamond
Kansas Agricultural Experiment Station Research Reports
No abstract provided.
Processing And Conservation Of The Little Corn In Aiquile Province In The Cochabamba Department: Use Of Antioxidants, Organic And Industrial Evaluation, Saul Victor Miranda Fernandez
Processing And Conservation Of The Little Corn In Aiquile Province In The Cochabamba Department: Use Of Antioxidants, Organic And Industrial Evaluation, Saul Victor Miranda Fernandez
Theses and Dissertations
The present work was conducted in order to determine an adequate variety in the processing of small corn, in which a monitoring of all the cycle in cultivation was conducted. The behavior of the small corn was analyzed in the laboratory before the presence of three antioxidants, ascorbic acid, acetic acid and sodium sulfate in two concentrations in addition to subjecting them to thermal treatments that allows us to obtain a pleasant product for the consumer that is both resistant to treatment and nutritious for the health. The results indicate that the best variety of corn is muruchi yellow, the …
Tests On The Elaboration Of Soybean Milk, Derivatives, And Industrial Feasibility Project, Ciro Pablo Kopp Valdivia
Tests On The Elaboration Of Soybean Milk, Derivatives, And Industrial Feasibility Project, Ciro Pablo Kopp Valdivia
Theses and Dissertations
This work was done with the purpose of evaluating different forms of soybean milk processing, the product acceptance by the public, and to do a study on the feasibility for the production of milk at a small scale to be used as a nutritional supplement in school breakfasts. The soybean milk was prepared with 2 varieties "(Cristalina and Doko)" and two periods of enzymatic inactivation (Before and After) of the grain mush. The "organoleptic" quality was evaluated through surveys and its posterior statistical analysis. Parameter quality was also considered just as did the microbiologic analysis and the conservation tests. The …
K-State Turfgrass Research 1997, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
K-State Turfgrass Research 1997, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
Kansas Agricultural Experiment Station Research Reports
With our staff at full strength, several new research projects have been initiated for the 1997 season. As always, we are anxious to hear your suggestions for research that can be done to improve our ability to maintain healthy turf in Kansas.
Comparative Salt And Waterlogging Tolerance Of An Introduced Grass (Agropyron Elongatum [Host] P. Beauv.) And Two Herbaceous Australian Species (Podolepis Gracilis [Lehm.] And Danthonia Caespitosa Gaud.), Bryan William Duff
Theses : Honours
Increasing land degradation is recognised as an immediate worldwide threat. Human induced soil salinity is probably the major cause of land abandonment, through its adverse effects on plant growth. Salinity is a major focus of environmental researchers because it is recognised that counter-strategies can potentially reclaim both artificially degraded lands and intrinsically saline areas. Currently, strategies to combat salinity require that land use is changed, since restoration to a past use is usually economically impractical or impossible. Biological strategies show most promise. Revegetation of degraded soils with hardy plant species has met with considerable success, and shows promise for the …
A Study Of The Lichens At Rocky Branch Nature Preserve, Clark County, Illinois, Eric B. Grunder
A Study Of The Lichens At Rocky Branch Nature Preserve, Clark County, Illinois, Eric B. Grunder
Masters Theses
In 1971, a graduate student at Eastern Illinois University, James E. Wiedman, studied the lichen flora of Rocky Branch Nature Preserve, Clark County, Illinois. During his study he collected, identified, and recorded a total of 64 lichen species. Since 1971, Rocky Branch Nature Preserve has experienced a dramatic increase in use by people and a concomittant decline in the quality of lichen habitats. In order to assess the decline of suitable lichen habitats and the reduction of lichen species a second study of the lichens at Rocky Branch Nature Preserve was undertaken. As part of this study, ten habitat sites …
Environmental Requirements For Sporocarp Germination In Marsileaceae, Kevin J. Kruep
Environmental Requirements For Sporocarp Germination In Marsileaceae, Kevin J. Kruep
Masters Theses
Experiments were conducted on sporocarps of Marsilea quadrifolia L. to determine whether temperature had any influence on the length of the reproductive period and initial sperm emergence from microgametophytes. Data were then compared to results of similar studies undertaken with the species M. vestita Hooker and Greville to determine whether there was any variation between them. A slight variation was recorded, ranging from 1 to 1.5 hours for initial emergence.
An additional set of experiments was performed with 58 year old sporocarps and approximately two-year-old sporocarps of M. quadrifolia. A difference of 2-6.5 hours for initial sperm emergence occurred between …
Southwest Research-Extension Center, Field Day 1997
Southwest Research-Extension Center, Field Day 1997
Kansas Agricultural Experiment Station Research Reports
Report of agricultural research from Southwest Research-Extension Center of Kansas State University.
Southwest Research-Extension Center Field Day 1997
Southwest Research-Extension Center Field Day 1997
Kansas Agricultural Experiment Station Research Reports
Each Field Day report consists of individual research reports on topics specific to the region, including cultural methods for most of the major crops grown in Kansas, mitigating the effects of weeds, insects, and disease associated with those crops, and irrigation. Research is conducted and reports written by staff of the K-State Research and Extension Southwest Research Extension Center.
Field Research 1997, Dale L. Fjell
Field Research 1997, Dale L. Fjell
Kansas Agricultural Experiment Station Research Reports
No abstract provided.
Parade Of Presidents, John L. Artz
The Spiroplasma Motility Inhibition Test, A New Method For Determining Intraspecific Variation Among Colorado Potato Beetle Spiroplasmas, Kevin J. Hackett, J. J. Lipa, G. E. Gasparich, D. E. Lynn, M. Konai, M. Camp, R. F. Whitcomb