Index Catalog // ScholarsArchive@OSU

Factors affecting establishment, survival, and production of birdsfoot trefoil (Lotus corniculatus L.) and alfalfa (Medicago sativa L.)

Creator:: Cooper, Clee Scott
Abstract:: Field, greenhouse, growth chamber and laboratory experiments evaluated factors affecting establishment, survival and production of birdsfoot trefoil (Lotus corniculatus L.) and alfalfa (Medicago sativa L.) Field studies investigated the effects of a barley companion crop, seedling year harvest management and nitrogen and phosphorus fertilization upon stands, survival and subsequent production...
Resource Type:: Dissertation

Studies on the methodology of crossing and selfing in Lolium multiflorum

Creator:: Bergman, Jerald Wilmer
Abstract:: Studies were conducted to determine the effectiveness of a biological pollen barrier of rye, Secale cereale, in preventing out-crossing between Lolium multiflorum genotypes in each of the 300 crossing blocks established in this experiment. Fluorescent tests of seeds of open-pollinated and single-crossed progeny of four annual ryegrass sources were used...
Resource Type:: Masters Thesis

The physiology of seasonal growth in tall fescue varieties (Festuca arundinacea Schreb.)

Creator:: Blacklow, Warren Marcus
Abstract:: The winter and summer growth of varieties of tall fescue (Festuca arundinacea Schreb.) that had originated from the Mediterranean region (Oregon 1000 and Tunisia) and northern Europe (Alta) were studied outdoors in the Mediterranean climate of western Oregon, and in greenhouses and controlled environment chambers. Treatments of temperature, photoperiod and...
Resource Type:: Dissertation

Seed development and germination of monogerm sugar beets (Beta vulgaris L.) as affected by maturity

Creator:: TeKrony, Dennis M.
Abstract:: Maturation rates of monogerm sugar beet seed grown in Western Oregon were measured quantitatively to determine attainment of maximum seed development and germination. Seed was collected at various intervals after anthesis from two hybrid varieties representing the extremes in resistance (hard bolting) and susceptibility (easy bolting) to seedstalk development. The...
Resource Type:: Dissertation

An evaluation of creeping habit in various progenies of red fescue (Festuca rubra L.)

Creator:: Kim, Dal Ung
Abstract:: Thirty-three genotypes of red fescue were selected on the basis of diverse origin, anthesis date, and type of spreading from a space-planted introduction nursery. Open-pollinated, single-cross, and top-cross progeny nurseries were established into a randomized block with four replications, 20, 9, 8 entries, respectively, with nine plants per entry on...
Resource Type:: Masters Thesis

In vitro and in vivo evaluations of chemically treated ryegrass straw

Creator:: Anderson, Daniel Craig
Abstract:: Seven in vitro trials were conducted to compare the effects of soaking annual ryegrass straw in solutions of sodium hydroxide (Na₄OH), potassium hydroxide (KOH), ammonium hydroxide (NH₄OH), or sodium formate (NaCHO₂) at varying levels. Dry matter digestibility (DDM) was the criterion used to measure treatment response. A 3 x 3...
Resource Type:: Dissertation

Evaluation of three methods of selection in relation to yield and yield stability in winter wheat (Triticum aestivum Vill., Host)

Creator:: Charoenwatana, Terd, 1937-
Abstract:: The effectiveness of early generation selection for yield and yield stability and the possible identification of superior parental combinations were studied in winter wheat populations representing different levels of genetic diversity. Experimental material for evaluating yield stability consisted of nine bulk and seven modified bulk populations derived from nine parental...
Resource Type:: Dissertation

The examination of seed yield potential in certain genotypes of birdsfoot trefoil (Lotus corniculatus L.)

Creator:: Bresciani, Juan Carlos
Abstract:: In the last 30 years, birdsfoot trefoil (Lotus corniculatus L. ) has been recognized as a great potential source of forage. Since the 1930's, many studies have been reported in relation to birdsfoot trefoil characteristics, including some directly related with the association between seed yield and its components. The purpose...
Resource Type:: Masters Thesis

Effect of chlorpropham on vegetative and reproductive development in chewings fescue (Festuca rubra L. subsp. commutata Gaud.)

Creator:: Akobundu, I. O.
Abstract:: Experiments were conducted under field and greenhouse conditions to investigate the effects of chlorpropham (isopropyl mchlorocarbanilate) on vegetative and reproductive development in Chewings fescue (Festuca rubra L. subsp. commutata Gaud.) and to determine the time of induction and initiation under natural conditions. Chewings fescue was found to be very susceptible...
Resource Type:: Dissertation

Nitrite dissimilation by microorganisms incapable of efficient nitrate utilization : nutritional and ecological considerations

Creator:: Vangnai, Somsak
Resource Type:: Dissertation

ScholarsArchive@OSU

Factors affecting establishment, survival, and production of birdsfoot trefoil (Lotus corniculatus L.) and alfalfa (Medicago sativa L.)

Studies on the methodology of crossing and selfing in Lolium multiflorum

The physiology of seasonal growth in tall fescue varieties (Festuca arundinacea Schreb.)

Seed development and germination of monogerm sugar beets (Beta vulgaris L.) as affected by maturity

An evaluation of creeping habit in various progenies of red fescue (Festuca rubra L.)

In vitro and in vivo evaluations of chemically treated ryegrass straw

Evaluation of three methods of selection in relation to yield and yield stability in winter wheat (Triticum aestivum Vill., Host)

The examination of seed yield potential in certain genotypes of birdsfoot trefoil (Lotus corniculatus L.)

Effect of chlorpropham on vegetative and reproductive development in chewings fescue (Festuca rubra L. subsp. commutata Gaud.)

Nitrite dissimilation by microorganisms incapable of efficient nitrate utilization : nutritional and ecological considerations

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