F2 Virginiana Hybrids

Look forward to seeing more Warren

THis is a F2 Hybrid. The seed parent was F1 (Kordesii X R. Virginiana) full double dk pink. The leaves have become larger and less glossy than the seed parent, vigour and health are good.
23 10 F2  dbl pink F1.jpg

Flowered this morning Virg Hyb Seedling K1 L47 (Type 2).The leaves have changed completely from the F1 and has a few more petals.
virg Hy L1 47 2.jpg
Virg Hy L1 47 1.jpg

I like it a lot.

F2 seedling K6 L18, Smoocher X ( Kordesii X R. Virginiana). Colour is scarlet, double blooms.
Warren
K6 L18 1.jpg
K6 L18 2.jpg

Really liking this one Warren

Thanks Rob.

This one of the first F1 where I used R. virginiana pollen on a cultivar of mine called Mimas. This F1 is very fertile both ways.
F1 Mimas X R. virg.jpg

Something of interest, the variations in size and shape of the ovary chamber and sepal difference in F1 Hybrids and the later F2 Hybrids of Rosa virginiana. Of course there is a great difference between those which origated from the Kordesii cross to those of which came from Mimas.
F1 VIRG HYBR OVARY.jpg

Interesting how the other parent has an effect on the fuzziness, Warren! This is a picture of ‘Rose d’Amour’, an old R. virginiana hybrid with an OGR. Whatever the other parent was, it definitely enhanced and encouraged fuzzy buds.
P1010101.JPG

Fuzziness, is that the same as mossing?

Bv,

It would be interesting to see the results of ‘Rose d’Amour’ crossed with a moss or even a heavily crested centifolia type rose.

Warren

From the cross K14 L38, two F2 Virginiana seedlings developed. Type 1 has typical modern rose foliage, while Type 2 the foliage is very different. Type 2’s leaf structure are more rounded and instead of laying flat on long the leaf stalk they stand up. The leaves being waxy and standing up, water would not cover the leaf surface as it would run off.
K14 L38 Foliage.jpg

Something interesting, all of my F2 Virginiana Hybrids rejected tetraploid pollen. Some did however set op hips which were either selfs or cross pollinations from other F2 hybrids (I put all the Virginina F2 Hybrids together in a very isolated area of the garden). There is however still possibilities of continuing the breeding line, all pollen from these F2 Virginiana Hybrids used on other cultivars seems very viable.

Warren

Did you try diploid pollen?

Only diploid pollen worked on these F2
Warren

This is to show different charactersistics of two F2 Virginiana hybrids.

Seedling K1 L47 TYPE 1 has produced thorns in its lower 1/3 of growth, with one or two thorns popping up occasionally in the upper growth , making it almost thornless.

Seedling K1 L47 TYPE 2 is very thorny at all levels of growth.
K1 L47 TYPE 1.jpg
K1 L47 TYPE 1 A.jpg
K1 L47 TYPE 2.jpg

Warren, can you offer any advice on how to identify actual virginiana hybrids from among the pretenders?

The canes Don , its all in the canes.

Warren

This is a pic of the foliage of a the F2(Mimas X R. virginiana) X Curly Pink, all the other F2’s flowered on their second growth cycle except this one. The mature leaves are very tough and leathery to touch.
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