Critical temperatures for cambial activity and cell differentiation in conifers of cold climates in Europe and Canada were identified. Xylogenesis occurred from May till October, but cambial activity ceased in the period between July-August when temperatures were still high. Results demonstrate that temperature is not a critical factor for radial growth of trees in the second part of the growing season.
COBISS.SI-ID: 2248870
A detailed review of literature on seasonal dynamics of xylem and phloem formation, methods and analysis is given.
COBISS.SI-ID: 233774080
Seasonal dynamics of wood formation in sessile oak (Quercus sessiliflora Salisb.) in 2007. The dynamics of wood formation in sessile oak differs from radial growth patterns of conifers.
COBISS.SI-ID: 2310822
Parameters of gompertz function for evaluation of wood formation dynamics expressed as number of cells or measured widths in norway spruce were analysed. Measurement of the xylem increment is faster than cell counting and might be more appropriate for studying deciduous trees, in which the xylem is more complex and composed of morphologically diverse types of elements that are not arranged in radial files.
COBISS.SI-ID: 1695113
In paper, anatomical structure of secondary phloem in silver fir (Abies alba Mill.) and Norway spruce (Picea abies Karst.) is described. Most recent findings about seasonal dynamics of phloem growth ring formation are given, also in comparison with xylem.
COBISS.SI-ID: 1905318