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Regular cambial activity and xylem and phloem formation in locally heated and cooled stem portions of Norway spruceGričar, Jožica, gozdarka ...The effect of heating (23-25_C) and cooling (9-11_C) on regular cambial activity and xylem and phloem formation in the stem portion of Norway spruce was investigated. Adult trees were sampled at ... 21-day intervals during the 2005 vegetation period. Continuously elevated temperatures increased the rate of cell division in the first part of the growing season, but did not significantly prolong cambial activity at the end of the vegetation period in the heated tree. Low-temperature treatments shortened regular cambial activity and slowed down cell production. The xylem growth ring was wider in the heated sample and narrower in the cooled sample compared to the control. The temperature in the cambial region was only negligibly transferred along the stem from the site of its application. In general, the temperature in the cambium was affected by a longterm rise or drop in air temperatures. Both experiments affected the structure and width of phloem growth increments. The tangential band of the axial parenchyma was not continuous in the cooled sample. The number of late phloem cells was reduced in the cool-treated sample and increased in the heat-treated sample. Our experiments confirmed the effect of constantly increased or decreased temperatures on regular cambial activity in Norway spruce.Source: Wood Science and Technology. - ISSN 0043-7719 (Vol. 41, no. 6, 2007, str. 463-475)Type of material - article, component part ; adult, seriousPublish date - 2007Language - englishCOBISS.SI-ID - 1448585
Link(s):
http://dx.doi.org/10.1007/s00226-006-0109-2Dostop do polnega teksta samo za podpisnike LINK-a oz. testne verzije LINK-a
Repository of the University of Ljubljana – RUL
Author
Gričar, Jožica, gozdarka |
Zupančič, Martin, 1962- |
Čufar, Katarina |
Oven, Primož
Topics
kambij |
ksilem |
floem |
navadna smreka
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Gričar, Jožica, gozdarka | 22609 |
Zupančič, Martin, 1962- | 10118 |
Čufar, Katarina | 02937 |
Oven, Primož | 11223 |
Source: Personal bibliographies
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