Results 241 to 250 of about 72,738 (281)
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A Dutch elm disease resistant triploid elm
Canadian Journal of Forest Research, 1994A naturally occurring triploid elm hybrid was found in the American elm, Ulmusamericana L., planting on the National Mall in Washington, D.C. Chromosome examinations of mitosis in root tips and meiosis in pollen mother cells showed a chromosome complement of 2n = 3x = 42.
James L. Sherald +4 more
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‘Morfeo’ Elm: a new variety resistant to Dutch elm disease
Forest Pathology, 2011SummaryDutch elm disease (DED) has spread through Europe and North America since the beginning of the twentieth century. In response, several independent genetic improvement programmes for breeding DED‐resistant elms have been established on both sides of the Atlantic.
Santini A, Pecori F, Pepori A, Brookes A
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The extensive damage to elms by Dutch elm disease agents and their hybrids in northwestern Russia
Urban Forestry and Urban Greening, 2021Rein Brys, Allar Padari, Liina Jürisoo
exaly
Elm yellows and Dutch elm disease in Croatia
2015Elm yellows (EY) is a disease caused by phytoplasmas, non-helical, wall-less, unculturable bacteria of the class Mollicutes and provisional genus ‘Candidatus (Ca.) Phytoplasmaʼ. ‘Ca. Phytoplasma ulmi’ (16SrV-A subgroup) is predominantly infecting elms in Europe, although other phytoplasmas were occasionally detected as well.
Ćurković-Perica, Mirna +3 more
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The Return of the Elm: Status of Elms in the Nursery Industry
2000J. Frank Schmidt and Son Co. (and other nurseries) is playing a leading role in the comeback of elms, and intends to make available the best of the new cultivar introductions. As the breeding and improvement of elms is presently an area of great activity, it is anticipated that the “top choices” among cultivars will be in a state of frequent change for
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Chinese Elm (Lacebark Elm), Ulmus parvifolia [PDF]
, 2014 This publication covers the physical and main features, plant needs, functions, care, and additional information for the Chinese Elm, Lacebark Elm, Ulmus parvifolia.
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Developing hybrid ELM-ALO, ELM-LSO and ELM-SOA models for predicting advance rate of TBM
Transportation Geotechnics, 2022Edy Tonnizam Mohamad +2 more
exaly