9 Result(s)
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Article
Use of morphological, molecular markers and cytology to differentiate between closely related Gaura coccinea, G. drummondii for breeding purposes
Collection of wild species is critical to increase crop germplasm gene pools. Gaura coccinea has been identified as an important source of cold tolerance (winter hardiness) for hybridization with non-cold toleran...
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Epigenetic variation in tissue cultured Gaura lindheimeri
High levels of variability were observed in tissue cultured Gaura lindheimeri genotypes when flowered in situ. Tissue culture treatments for chromosome doubling (colchicine: 0, 0.25, 1.25 mM; trifluralin: 0, 15, ...
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Article
Statistical discrimination between pollen tube growth and seed set in establishing self incompatibility in Gaura lindheimeri 1
The University of Minnesota Gaura breeding program is develo** USDA Z3-4 winter-hardy genotypes via interspecific hybridization of G. lindheimeri (Z5-6) and G. coccinea (Z2-4). Prior to commencing interspecific...
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Minnesota horticultural industry survey on invasive plants
Horticultural commerce of ornamental plants has been the source of many of our most troublesome plant invaders worldwide. The purpose of this research was to document the knowledge gap of industry perspectives...
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Article
Trifluralin-mediated polyploidization of Rosa chinensis minima (Sims) Voss seedlings
Many diploid rose species and cultivars possess valuable traits that can be introgressed into modern tetraploid cultivars. Interspecific, interploidy crosses are possible, but triploid hybrids typically have l...
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Inheritance of pseudo-self compatibility in self-incompatible garden and greenhouse chrysanthemums, Dendranthema grandiflora Tzvelv
Self incompatibility (SI) can be used to alleviate costly hand emasculation and pollination in F1 hybrid chrysanthemum seed production. SI, however, disrupts the progression of inbreedig (selfing or full-sib mati...
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Article
Congruity backcrossing as a means of creating genetic variability in self pollinated crops: seed morphology of Phaseolus vulgaris L. and P. acutifolius A. Gray hybrids
Seeds of early generations of three reciprocal congruity-backcross (CBC) pedigrees, developed by backcrossing Phaseolus vulgaris-P. acutifolius hybrids to each of the parent species in alternate generations, exhi...
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Inbreeding depression in garden and glasshouse chrysanthemums: germination and survivorship
Sixty-six chrysanthemum (Dendranthema grandiflora) inbred selections, noninbred cultivars and hybrids, and D. makinoi were the base populations from which up to three generations of inbreds were obtained using mu...
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Article
Thin-layer chromatographic analysis of flower color phenotypes in Dendranthema grandiflorum Ramatuelle inbreds and clonal cultivars
Four glasshouse and 13 garden chrysanthemum cultivars or inbred seedlings from the color groups white, yellow, pink/purple, and orange/red/bronze were analyzed with thin-layer chromatography (TLC) for qualitat...
