Polyploidy in the Apple Polyploidy in the Apple
Found Seven Years After Colchicine Treatment
DOI:
https://doi.org/10.71318/apom.1952.7.2.28Abstract
In April 1942 six one-year-old apple trees of the varieties Baldwin, Delicious, McIntosh, Stayman and Winesap, were treated with colchicine. The technique used was essentially the same as that recommended for the pear 4. Although polyploidy was detected inn limited areas on some leaves during the first growing period following treatment, no branches were found on any tree where polyploidy could be detected. In the fall of 1942 the plants were taken out of the greenhouse and planted in the orchard.
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