Volume 57 Number 2 Article 15
Year 2003 Month 4
Title: The Effect of Eight Dwarf Rootstocks on Burrknot Development on 'Gala' Apple Trees at Two Locations
Authors: R.P. Marini, M.L. Parker, J.A. Barden and C.R. Unrath
Abstract:
Burrknot development was evaluated on 10-year-old 'Gala' scions growing in North Carolina and
Virginia on eight dwarfing rootstocks.
The effect of rootstock on burrknot development was similar for
both locations.
In general, trees on P.1 and 0.3 produced the most burrknots and trees on M.27 produced
the fewest burrknots.
The number of burrknots per tree was not related to trunk cross-sectional area
(TCA), but burrknot density (burrknots/TCA) was highest for 0.3 and lowest for M.27.
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