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nafex - [NAFEX] Interstem Apples

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  • From: Kevin Bradley <kbradley@ttlc.net>
  • To: nafex@lists.ibiblio.org
  • Subject: [NAFEX] Interstem Apples
  • Date: Mon, 08 Sep 2003 19:11:14 -0500

Here is an article I found on Bud 9/antonovka interstems and the relationship of planting depth to frost resistance and trees size. Also yield efficiency:


Acta Horticulturae 243: IV International Symposium on Research and Development on Orchard and Plantation Systems-
“Effect of New Rootstocks of Polish, Russian and Czechoslovakian Breeds and Two Depth of Planting of Trees with Interstems on Growth and Cropping of 3 Apple Cultivars. Written by A. Czynczyk, B. Omiecinska:
Interstem B9 on antonovka rootstock were “similar in size to M9”. (M9 produces a tree that tops out at roughly 8 feet high) but produced “significantly higher crops than those planted on M9”. Whether planted with the interstem above the ground or whether planted with the lower end (the interstem/rootstock union) of the interstem 15 cm below the ground, Bud 9 interstem on antonovka rootstock was also among the most yield efficient of those tested. Those planted with the interstem 15 cm below the ground produced fewer suckers and also “showed higher frost resistance” in the “severe” winter of 1986/87.



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