Results 21 to 30 of about 9,971 (163)
EDIS, 2014 Norway Spruce can grow 80 to 100 feet tall and spread 25 to 40 feet, though some listed cultivars are shrublike. Small-diameter branches sweep horizontally from the straight trunk which can grow to four feet thick.
Edward Gilman, Dennis Watson
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Umbelliferone in Needles of Picea abies *
Zeitschrift für Naturforschung C, 1980 Abstract A compound showing blue fluorescence under UV-light was isolated from spruce needles and identified as umbelliferone. Structure analysis was based on UV and mass spectroscopy as well as chromatographic comparison with authentic material. Quantitative evaluation by direct measurement of the fluorescence of the umbelliferone spot
Hermann Esterbauer +2 more
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Recovery of Abies alba and Picea abies saplings to browsing and frost damage depends on seed source
Ecology and Evolution, 2019 The density of wild ungulates has increased in the last century, and browsing has become a major driver of forest succession in the northern hemisphere.
Andrea Doris Kupferschmid +1 more
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Bulletin of popular information - Arnold Arboretum, Harvard University., 1916 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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, 2021 Picea abies (L.) H. Karst. Fichte Art ISFS: 302800 Checklist: 1033800 Pinaceae Picea Picea abies (L.) H. Karst. Zusammenfassung Artbeschreibung (nach Lauber & al. 2018): Bis über 50 m hoch, mit rotbrauner oder grauer Rinde. Nadeln allseitig abstehend, 4kantig, grün. Einhäusig.
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Acta Societatis Botanicorum Poloniae, 2014 The megametophytes of Picea abies, Pinus sylvestris, Pinus mugo and Larix decidua were cultured on modified solid agar MS medium with 5 mg.l-1 α-naphthaleneacetic acid and 0.1 mg.l-1 6-benzylaminopurine and exposed to a tester, the basidio-mycete ...
J. Hřib, B. Vooková
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THE EFFECT OF SIT CONDITION ON SOME MECHANICAL PROPERTIES OF PICEA ABIES WOOD IN TWO REGIONS [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2006 In this study, in order to achieve sufficient accuracy both quality and quantity factors in two forestry plantanation of Picea abies using 100% statistics were used. In order to investigate wood quality, fiber length, density and mechanical properties, 4
Zoghali Syahipoor, Fardad Golbabaei
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Ekológia (Bratislava), 2021 By logging in the past, humans can determine current tree population structures, but fast stump decomposition makes difficult to falsify that for Amazonian Rainforests.
Garrido-Perez Edgardo I. +6 more
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Acta Societatis Botanicorum Poloniae, 2011 Somatic embryogenesis was studied in four spruce species (Picea abies, P. omorika, P. pungens 'Glauca' and P. brewenana) to determine if this method can be used for in vitro propagation of coniferous trees.
Teresa Hazubska-Przybył +1 more
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Journal of Forest Science, 2017 Adaptation variability and ecological plasticity in the "genotype-environment" system of 22 provenances of Picea abies (Linnaeus) H. Karsten, Picea obovata (von Ledebour) and their introgressive hybrids growing within the Russian Plain were studied ...
Elena N. NAKVASINA +2 more
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