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.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Lipa T. 2012. GROWTH, QUALITY AND PRODUCTIVITY IN STOOL BEDS OF ROOTSTOCKS M.9 AND M.26, EJPAU 15(1/volume15), #05.
Available Online: http://www.ejpau.media.pl/volume15/issue1/volume15/abs-05.html

ABSTRACT

The study was conducted in the years 1998-2002, at two private nursery farms in the Lublin region, and comprised the estimation of the productivity of the stool bed, and of the quality and the growth dynamics of two apple-tree rootstocks with the greatest economic importance – M.9 and M.26.
Comparing the growth of rootstocks in M.9 and M.26 nurseries on the basis of their length and diameter, and estimating the weight of a single leaf, it was found that all of those traits achieved higher values in the mother plantation of the M.26 rootstock. The growth dynamics of both rootstocks under estimation was similar – the greatest growth increments were recorded during the initial three months. In each of the experiment the nursery of M.26 rootstocks was more productive than that of M.9 rootstocks. The number of rootstocks taken out depended on the age of the mother plantations and increased in the successive years. On average, in the final year of the experiment nearly 80% rootstocks more were obtained than in the first year of the experiment. The highest percentage share, for both M.9 and M.26 rootstocks, was noted for offshoots with diameters above 8 mm – 43.9% and 68.2%, respectively. In the M.9 nursery twice as many non-rooted offshoots were obtained (15.6%) than in the case of the M.26 rootstock.
It was demonstrated that there are correlations among the growth parameters studied, the correlations being stronger between the offshoots diameters and their length than between the length of rootstock offshoots and the weight of a single leaf.

Key words: stool bed, offshoot diameter and length, productivity.

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

email: tomasz.lipa@up.lublin.pl

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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.

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