ISHS Acta Horticulturae 383: Mineral Nutrition of Deciduous Fruit Plants
EFFECT OF ROOTSTOCKS UPON LEAF MINERAL COMPOSITION OF NON-BEARING 'JONAGOLD' APPLE TREES |
| Authors: | E. Jadczuk, J. Kobylinska, N. Zelazo |
| Keywords: | apple, leaf mineral concentration, rootstocks, sampling date |
| Abstract:
In the 1st and 2nd year after planting, leaves on non-bearing 'Jonagold' apple trees, grown on eight different rootstocks (M.26, M.9 - clones 751 and 984 selected by Engel, P 2, P 14, P 16, P 22, and P 60) were analysed for mineral nutrient composition. Leaves were sampled on six different dates, from 40 to 140 days after full bloom. The highest K and the lowest Mg concentration was found in leaves of trees on both M.9 clones, the lowest K on P 22 and P 60 and the highest Mg on P.22. N was highest on P 14, P 16, M.26 and on both M.9 clones and lowest on P 2. Ca was the lowest in leaves of trees on M.26 and highest on P 60 and P 16. P 16 and M.26 apparently favoured a higher concentration of Mn in leaves. No differences due to rootstock were found in P content. The results obtained indicate that rootstock plays an important role in apple tree nutrition. | |
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