Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2001
Volume 4
Issue 2
Topic:
Forestry
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Dolnicki A. , Kraj W. 2001. LEAF MORPHOLOGY AND THE DYNAMICS OF FROST-HARDINESS OF SHOOTS IN TWO PHENOLOGICAL FORMS OF EUROPEAN BEECH (FAGUS SYLVATICA L.) FROM SOUTHERN POLAND, EJPAU 4(2), #01.
Available Online: http://www.ejpau.media.pl/volume4/issue2/forestry/abs-01.html

LEAF MORPHOLOGY AND THE DYNAMICS OF FROST-HARDINESS OF SHOOTS IN TWO PHENOLOGICAL FORMS OF EUROPEAN BEECH (FAGUS SYLVATICA L.) FROM SOUTHERN POLAND

Adam Dolnicki, Wojciech Kraj

 

ABSTRACT



Dynamics of shoot development, leaf morphology and changes in frost-hardiness of leaves from spring to autumn was studied in two phenological forms of European beech (Fagus sylvatica L.) in years 1996-2000. The investigations were conducted in southern Poland, in research plots situated at elevations ranging from 250 to 1050 m. It was found, that trees classified as an early flushing form had longer and wider leaves and longer petioles (on average 11-15%) as compared with trees belonging to the late form. Leaf dimensions declined with increasing elevation of the research plots, especially in the early growth form (r ranging from –0.8953 to –0.9811). Determining frost-hardiness of young shoots with the Dexter’s method (on the basis of the index of damage according to Pearce), conducted by freezing tree shoots in a refrigerator at various times indicated, that in autumn both phenological forms did not differ in the degree of frost-hardiness. However, in the early spring, several weeks before

Key words: Fagus sylvatica, phenological forms, frost-hardiness, leaf morphology.