Index Catalog // ScholarsArchive@OSU

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
Full Text:: Privacy W. S. McGuire The winter and summer growth of varieties of tall fescue (Festuca arundinacea

Alfalfa cutting management in the Columbia Basin

Creator:: Suttner, Donald Lee
Abstract:: Field studies to determine appropriate cutting management regimes consistent with yield, quality, and persistence of stand were conducted on several alfalfa varieties in the Columbia Basin region of Oregon. Two groups of treatments, including consecutive cuts at the same stage of maturity and cuts made at varying maturities, were imposed...
Resource Type:: Dissertation
Full Text:: several alfalfa varieties in the Columbia Basin region of Oregon. Two groups of treatments, including

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
Full Text:: variety, the fewer the leaves on the main stem, whereas the latest maturing varieties have the 22

An examination of seedling vigor and the effects of genetic diversity on response to heterosis in tall fescue (Festuca arundinacea Schreb.)

Creator:: Moutray, Jim B., 1939-
Abstract:: Response to heterosis for plant height, anthesis date, panicle number, seed yield, and fall vigor rating was determined in a tall. fescue group selected for diverse morphology, origin, and anthesis date. Parents, single-cross progeny (SX), and first generation selfed progeny (S₁) were included in the study. Each experimental plot consisted...
Resource Type:: Dissertation
Full Text:: . Data were collected during the summer and fall of 1970. Single-cross progeny were superior to parents

Heritability estimates for seed and plant characteristics in white clover (Trifolium repens L.)

Creator:: Kim, Dal Ung
Abstract:: Genetic differences, extent of hybrid vigor, nature of gene action, heritability estimates, and associations among characteristics, and between progenies and their respective mid-parents were determined for seed and plant characteristics in white clover (Trifolium repens L.). Ten seed and seedling vigor characteristics, including seed weight, ATP content in seed, seed...
Resource Type:: Dissertation
Full Text:: action. This suggests that the plant breeder should design his breeding pro- gram to develop varieties

Effect of production methods on quality of wheat seed

Creator:: Mathenge, Felix Njeruh
Abstract:: The objective of this research was to identify the optimum cultural practices for the production of the highest quality wheat seed in Oregon. The production methods included locations, irrigation, N levels and seeding rates. The seed quality factors studied were seed weight, bushel weight, protein content and seedling vigor. Foundation...
Resource Type:: Masters Thesis
Full Text:: not altered by variety. Larter (1971) reported that he observed the highest yields of wheat at the

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
Full Text:: . 5) in 1889 wrote that the variety vulgaris Koch. is indigenous to Europe, except Lab land and

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
Full Text:: obtained from each basic plant of a synthetic variety will determine, to some extent, the proportion of

Genetic variation and interrelationships of acid detergent fiber, neutral detergent fiber, hemicellulose, crude protein and in vitro dry matter digestibility in tall fescue (Festuca arundinacea Schreb)

Creator:: Soh, Aik-chin
Abstract:: Six parent clones and their 15 single-crosses of tall fescue (Festuca arundinaceae, Schreb) were row-planted in Corvallis, Oregon, row and sward-planted in Columbia, Missouri, and evaluated for genetic variability, genotyp-eenvironment interactions and interrelationships in acid detergent fiber (ADF), neutral detergent fiber (NDF), hemicellulose (HCL), crude protein (CP) and in vitro...
Resource Type:: Dissertation
Full Text:: intake, respectively. Genetic varia- bility in ADF and NDF has been observed in some forage species (19

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
Full Text:: million to Oregon's agricultural income. The certified varieties commonly grown for seeds are Cascade

ScholarsArchive@OSU

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

Alfalfa cutting management in the Columbia Basin

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

An examination of seedling vigor and the effects of genetic diversity on response to heterosis in tall fescue (Festuca arundinacea Schreb.)

Heritability estimates for seed and plant characteristics in white clover (Trifolium repens L.)

Effect of production methods on quality of wheat seed

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

Studies on the methodology of crossing and selfing in Lolium multiflorum

Genetic variation and interrelationships of acid detergent fiber, neutral detergent fiber, hemicellulose, crude protein and in vitro dry matter digestibility in tall fescue (Festuca arundinacea Schreb)

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

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