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thorn variation

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From: Carol Richards City: Streator, IL
I have a rooted rose cutting from an unknown variety of climbing rose that once grew in my mother's garden. The original rose was a very fragrant, large shrub, covered in thorns. The cutting has 4 small canes, 2 are super thorny like the mother plant, the other 2 have only a few large thorns. Would it be possible to grow a less thorny rose from the less thorny canes?
	Extension Message From: Richard Hentschel Extension Educator, Horticulture DuPage/Kane/Kendall Unit hentsche@illinois.edu
I would allow your rooted cutting that contain both kinds of thorned canes to grow out until you have enough cane growth to take cutting material to root. This would also allow you to see if the lessor thorned canes actually revert to the more thorny form. This difference could just be the degree of vigor of the canes right now. If by chance the orginal plant was grafted or budded, you may have cuttings from the rootstock and scion in which case you have two different roses.
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