EJPAU 2007. Wilczyński S. , Podlaski R. AIR TEMPERATURE, PRECIPITATION, AND SUNSHINE – THE FACTORS DECIDING ON THE ACTIVITY OF CUCUMBERTREE (<I>Magnolia acuminata </I>L.) VASCULAR CAMBIUM

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.

2007
Volume 10
Issue 1

Topic:

Horticulture

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Wilczyński S. , Podlaski R. 2007. AIR TEMPERATURE, PRECIPITATION, AND SUNSHINE – THE FACTORS DECIDING ON THE ACTIVITY OF CUCUMBERTREE (Magnolia acuminata L.) VASCULAR CAMBIUM, EJPAU 10(1), #22.
Available Online: http://www.ejpau.media.pl/volume10/issue1/abs-22.html

AIR TEMPERATURE, PRECIPITATION, AND SUNSHINE – THE FACTORS DECIDING ON THE ACTIVITY OF CUCUMBERTREE (MAGNOLIA ACUMINATA L.) VASCULAR CAMBIUM

Sławomir Wilczyński¹, Rafał Podlaski²
¹ Department of Forest Protection and Forest Climatology, Agricultural University of Cracow, Poland
² Department of General Biology and Nature Protection, Institute of Biology, Pedagogical University of Kielce, Poland

ABSTRACT

Three 50-year-old cucumbertrees (Magnolia acuminata L.) were studied in the Swiętokrzyski National Park (central Poland). They were growing on a moist alluvial soil with a high water table. The purpose of the study was to determine the sensitivity of these trees to the basic climatic elements: air temperature, precipitation, and sunshine. The width of tree-rings was used as a measure of tree susceptibility to a climatic factor. For this purpose a tree-ring chronology was made for the period 1960-2003. This chronology is a local growth standard for cucumbertree. The relationships between the monthly values of temperature, precipitation, and sunshine and the tree-ring width during 1960-2003 were studied using bootstrapped response and correlation functions computed for multiple time-intervals, as well as the agreement method and the method of signature years. It was found that a high air temperature in October and during winter months (December-March) preceding the growing season, and also a high temperature of the current year August, had a significant (p < 0.05) positive effect on radial increment of cucumbertree. Also a high precipitation of the previous year November and the current year June, as well as large amount of sunshine in August of the current year had a positive effect on growth of cucumbertree.

Key words: Magnolia acuminata, dendroclimatology, dendroecology, Swietokrzyski National Park, Poland.

Sławomir Wilczyński
Department of Forest Protection and Forest Climatology,
Agricultural University of Cracow, Poland
Al. 29 Listopada 46, 31-425 Cracow, Poland
Phone: +48 12 662 53 23
email: rlwilczy@cyf-kr.edu.pl

Rafał Podlaski
Department of General Biology and Nature Protection,
Institute of Biology, Pedagogical University of Kielce, Poland
Swietokrzyska 15, 25-406 Kielce, Poland
Phone: +48 41 349 63 22
email: r_podlaski@pro.onet.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.