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Evaluation of Rubus seed characteristics: seed coat morphology, anatomy, germination requirements and dormancy breaking

Creator:: Wada, Sugae
Abstract:: Rubus seed characteristics; seed coat morphology, anatomy, germination requirements and dormancy were studied in order to define protocols for breaking seed dormancy. Morphological analysis of the seed coat (testa) using scanning electron microscopy (SEM) included 56 seed accessions of 10 subgenera preserved in the collections of the US Department of...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________________________ Barbara M. Reed Rubus seed characteristics; seed coat morphology, anatomy

Improving in vitro mineral nutrition for diverse red raspberry and Rubus germplasm

Creator:: Poothong, Sukalya
Abstract:: Red raspberry, Rubus idaeus L., is a valuable crop for the U.S. Pacific Northwest and clonal propagation is required to produce disease-free plants and for germplasm preservation. One challenge of red raspberry micropropagation is the wide variation in growth response among the cultivars. The studies described in this dissertation were...
Resource Type:: Dissertation
Full Text:: Abstract approved: _____________________________________________________ Barbara M. Reed

Water relations and the root regeneration response of Douglas-fir

Creator:: Cobb, Cheryl Anne
Abstract:: The effect of lifting date and root-pruning treatments on water potential, root regeneration, and shoot growth of six-month-old and three-year-old Douglas-fir seedlings bare-root transplanted into a growth chamber, and sawdust bed, respectively, was studied. Root growth in six-month-old and three-year-old seedlings was highest in February and August respectively. Survival was...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Cheryl Anne Cobb for the degree of

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Creator:: Parris, Cheryl A.
Abstract:: Stevia (Stevia rebaudiana) is a perennial herbaceous plant native to Paraguay and used traditionally by the native Guarani peoples for centuries to sweeten medicinal teas. Stevia has only been commercially cultivated over the past 50 years and cultural practice information suitable for implementation by growers is limited. Currently stevia’s commercial...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Cheryl

Detection, identification, and antibiotic treatments of bacterial contaminants from micropropagated strawberries

Creator:: Tanprasert, Piyarak
Abstract:: Bacterial contamination is one of the most important problems both in plant tissue culture research and commercial laboratories. Early detection of contaminants saves time, effort, and money. Strawberry runner explants were screened for contaminants during June to August, 1994 and 1995. Most contaminants found were bacterial rather than fungal. Bacterial...
Resource Type:: Masters Thesis
Full Text:: approved: - - ,- -. Barbara M. Reed Bacterial contamination is one of the most important problems

Rubus leaf regeneration and micropropagation of virus infected raspberry

Creator:: Tsao, Chih-wei V.
Resource Type:: Masters Thesis
Full Text:: : . _ . . Barbara M. Reed An in vitro regeneration system was developed for leaf explants of Rubus cultivars

Improvement of cryopreservation regrowth of in vitro Ribes by pretreatment

Creator:: Luo, Jie, 1968-
Abstract:: Improved recovery of cryopreserved meristems and calli from in vitro currant (Ribes aureum Pursh and R. ciliatum Humb. & Bonpl.) plants was obtained by two-hour pretreatment with sucrose, proline, abscisic acid-responsive protein (RABP), and bovine serum albumin (BSA) solutions. Meristems and calli cold-acclimatized for one week were immersed in pretreatment...
Resource Type:: Masters Thesis
Full Text:: Regrowth of In Vitro Ribes bv Pretreatment. Abstract approved: Barbara M. Reed Improved recovery of

Nondestructive evaluation of in vitro-stored plants : a comparison of visual and image analysis systems

Creator:: Aynalem, Hailu M.
Abstract:: In-vitro plants in slow-growth storage must be routinely evaluated for repropagation and assessment of viability. It is often difficult to determine plant health by visual assessment due to variation in growth patterns and plant structure among genera. In order to evaluate cold-stored germplasm, laboratories need more effective approaches for viability...
Resource Type:: Masters Thesis
Full Text:: : Barbara M. Reed In-vitro plants in slow-growth storage must be routinely evaluated for repropagation

Development, detection and elimination of Verticillium dahliae in mint shoot cultures and effects of bacterial cultures and bacterization on the growth and disease development

Creator:: Wang, Nan
Abstract:: Roots of greenhouse-grown peppermint (Mentha piperita L.) and spearmint (Mentha spicata L.) plants and in vitro-grown shoot cultures were inoculated with Verticillium dahliae conidial suspensions to study symptom development, detection, and elimination of the V. dahliae. There were significant differences in the symptom expression of control and infected shoot cultures...
Resource Type:: Masters Thesis
Full Text:: Bacterization on the Growth and Disease Development Abstract approved:' Barbara M. Reed Roots of greenhouse

Genetic stability of micropropagated and in vitro cold-stored strawberries

Creator:: Kumar, Mohan B.
Abstract:: Genetic stability of micropropagated and cold-stored Fragaria x anannasa cultivar 'Pocahontas' was evaluated by Random Amplified Polymorphic DNA (RAPD) assay. Plantlets grown for eight months on M & S medium with 5 μM and 15 μM N6- benzyladenine (BA) were analyzed. No evidence of mutations was seen in over 200...
Resource Type:: Masters Thesis
Full Text:: Micropropagated and In vitro Cold-stored Strawberries. Abstract approved^ _ . , Barbara M. Reed Genetic

ScholarsArchive@OSU

Evaluation of Rubus seed characteristics: seed coat morphology, anatomy, germination requirements and dormancy breaking

Improving in vitro mineral nutrition for diverse red raspberry and Rubus germplasm

Water relations and the root regeneration response of Douglas-fir

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Detection, identification, and antibiotic treatments of bacterial contaminants from micropropagated strawberries

Rubus leaf regeneration and micropropagation of virus infected raspberry

Improvement of cryopreservation regrowth of in vitro Ribes by pretreatment

Nondestructive evaluation of in vitro-stored plants : a comparison of visual and image analysis systems

Development, detection and elimination of Verticillium dahliae in mint shoot cultures and effects of bacterial cultures and bacterization on the growth and disease development

Genetic stability of micropropagated and in vitro cold-stored strawberries

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