Results 131 to 140 of about 4,148 (183)

Changes of Pollen Allergens in Northern China.

open access: yesInt Arch Allergy Immunol
Qi W, Bian S, Li L, Guan K.
europepmc   +1 more source
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Micropropagation of Mature Trees of Ulmus Glabra, Ulmus Minor and Ulmus Laevis

2007
, 1999), has devastated the elm populations of Europe, North America and central Asia. This has lead, in both Europe and North America, to the beginning of breeding programmes in an attempt to produce resistant individuals. However, production of disease resistant elm trees via conventional breeding has met with limited success owing to the long time ...
J. Malá, M. Cvikrová, V. Chalupa
openaire   +1 more source

Chemotaxonomy of ulmus

Phytochemistry, 1972
Abstract The heartwoods of 10 elm species have been examined for the sesquiterpenes, 7-hydroxycadalenal (I), 7-hydroxy-3-methoxycadalenal (II), 7-hydroxycadalene (III), 7-hydroxycalamenenal (IV), 7-hydroxycalamenene (V), and mansonone C (VI), and for the lignans, thomasic acid (VII), thomasidioic acid (VIII), lyoniresinol (IX), and lyoniresinol 2a- O
J.W. Rowe   +3 more
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Ulmus L.

2013
Abstract This chapter discusses the taxonomy and origin; distribution; silviculture and ecology; Dutch elm disease; flowering and seed production; timber and uses; and place of elms (Ulmus glabra and U. procera) in British forestry.
openaire   +1 more source

American Elm (Ulmus americana)

2006
American elm (Ulmus americana) is a valuable and sentimental tree species that was decimated by Dutch elm disease in the mid-20th century. Therefore, any methods for modifying American elm or enhancing disease resistance are significant. This protocol describes transformation and tissue culture techniques used on American elm.
Andrew E, Newhouse   +3 more
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Micropropagation of Ulmus Species (Elms)

1997
The genus Ulmus (family Ulmaceae) consists of at least 32 species in the Northern Hemisphere. Elms are deciduous trees; the flowers are all hermaphrodite and in most species appear before the leaves on the previous year’s growth. The fruit is a samara, winged all round but the wing emarginate at the apex (Tulin et al. 1964).
Corchete, M.   +3 more
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Ulmus parviflora Jacq.

2018
Pflanzensammlung Dietmar Brandes: Digitale ...
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Ulmus glabra Huds.

2018
Pflanzensammlung Dietmar Brandes: Digitale ...
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Ulmus

1902
B. Fischer, C. Hartwich
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