Judging by pollen diameter it would appear that ‘Nurse Tracey Davies’ is a fertile triploid.
The rose is a good unfading yellow, very healthy even when pot grown and neglected, has set hips with pollen from both ‘Topaz Jewel’ and ‘Broadlands’ (*which looks to be diploid), and it’s own pollen looks good under the microscope.
So I cant help thinking it would be a good source of yellow in a diploid breeding program (or anywhere you want a healthy unfading Yellow).
[attachment=1]Golden Smiles, Oct 4 2013–IMG_3731c.JPG[/attachment][attachment=0]Golden Smiles, day 3, Oct 5 2013–IMG_3744.JPG[/attachment]This rose looks very much like Golden Smiles (FRYkeyno, Ivey Hall), bred about the same time by Fryer. Pickering had Golden Smiles for sale several years ago. I suspect that the two are siblings or are otherwise directly related (maybe parent-child or half-sibling)
Golden Smiles:[url] 'Golden Smiles' Rose