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.
2013
Volume 16
Issue 2
Topic:
Horticulture
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Lipa T. 2013. CHANGES IN CHEMICAL COMPOSITION OF LEAVES AND SHOOTS DURING VEGETATION OF APPLE-TREE ROOTSTOCKS IN MOTHER PLANTATION, EJPAU 16(2), #08.
Available Online: http://www.ejpau.media.pl/volume16/issue2/abs-08.html

CHANGES IN CHEMICAL COMPOSITION OF LEAVES AND SHOOTS DURING VEGETATION OF APPLE-TREE ROOTSTOCKS IN MOTHER PLANTATION

Tomasz Lipa
Department of Pomology, University of Life Sciences in Lublin

 

ABSTRACT

On the basis of analysis of leaves one can acquire information on the nutrition status of trees. In the course of the vegetation period changes take place in the level of various minerals in the leaves and shoots. Those changes are the result of processes taking place in the plant, and depend also on the weather conditions in a given year and on the level of yielding. Mother plantations, due to their specific nature (no yielding, strong vegetative growth), differ in the dynamics of uptake of macro-elements. The study was conducted during the period of 1998-2002, on production mother plantations of two apple-tree rootstocks with the greatest economic importance – M.9 and M.26. The chemical composition of leaves and shoots was analysed on three dates (in spring, summer and autumn). The highest content of nitrogen in leaves was noted at the start of vegetation, and the lowest after the termination of growth (end of September). Significant differences in the level of potassium in leaves were noted between June and August. The content of phosphorus in leaves decreased, as did that of magnesium, while the level of calcium increased during the vegetation season. Changes in the content of macro-elements in the shoots of rootstocks were smaller than in the leaves.

Key words: propagation of apple rootstocks, M.9, M.26, macroelements, period of vegetation.


Tomasz Lipa
Department of Pomology, University of Life Sciences in Lublin
Leszczyñskiego 58,
20-068 Lublin, Poland

email: tomasz.lipa@up.lublin.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.