BOC rogosnif

Rose

Denomination:	'BOC rogosnif'
Trade name:	Lotty's Love
Botanical Name:	Rosa
Applicant/Holder:	Bock, Charlotte 13212 Girard Ave. S. Burnsville, Minnesota 5321 JJ United States of America
Breeder:	Charles Wendell Bock, Burnsville, United States of America
Agent in Canada:	BioFlora Inc. 38723 Fingal Line R.R. #1 St. Thomas, Ontario N5P 3S5 Canada Tel: 519-317-7511
Application Date:	2018-07-13
Provisional Protection:	2018-07-13
Application Number:	18-9574

Variety Description

Varieties used for comparison: 'Foxi Pavement Rose' and 'Rugosa Rose'

Summary: The leaf of ‘BOC rogosnif' is smaller than that of both reference varieties. The outer side of the flower bud of ‘BOC rogosnif' is medium purple red while that of ‘Foxi Pavement Rose' is darker medium purple and that of ‘Rugosa Rose' is lighter medium purple.

Description:

PLANT: shrub type, no anthocyanin colouration on young shoot

STEM: many greenish prickles

LEAF (UPPER SIDE): medium to dark green, medium degree of glossiness
LEAFLET: absent or very weak undulation of margin
TERMINAL LEAFLET: medium elliptic shape, obtuse base, obtuse to rounded apex

FLOWER: semidouble type, pink colour group, irregularly rounded shape, concave to flat profile of upper part, flat to flattened convex profile of lower part, medium fragrance, absent or very weak sepal extensions
PETAL: absent or very weak to weak reflexing of petals one-by-one, obcordate shape, weak to medium degree of incisions, absent or very weak to weak reflexing of margin, weak undulation
PETAL (INNER SIDE): one colour, medium purple (RHS N74A)
PETAL BASAL SPOT (INNER SIDE): small, white
PETAL (OUTER SIDE): medium purple (RHS NN78D)
OUTER STAMEN: predominantly light yellow filament

Origin & Breeding History: 'BOC rogosnif' originated from a controlled hybrid cross conducted between the female variety ‘BOC germ' and the male variety ‘BOC eye' in 1995 in Burnsville, Minnesota, United States. From the resulting progeny, the new variety was selected based on flower colour, fragrance, winter hardiness, and continuous blooming in 1997. ‘BOC rogosnif' was first propagated asexually by cuttings in 1997 in Burnsville, Minnesota, United States.

Tests & Trials: The comparative trial for ‘BOC rogosnif' was conducted outdoors during the summer of 2024 at Bioflora Inc., in St. Thomas, Ontario. The trial included a total of 8 plants of the candidate variety and 4 plants of the reference variety. All plants were grown from bare-rooted plants transplanted into 11.4 liter containers in summer 2022. Observations and measurements were taken from 10 plants, or parts of plants, on June 14, 2024. All colour determinations were made using the 2015 Royal Horticultural Society (RHS) Colour Chart. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.

Comparison tables for 'BOC rogosnif' with reference varieties 'Foxi Pavement Rose' and 'Rugosa Rose'

Leaf length (cm)

	'BOC rogosnif'	'Foxi Pavement Rose'	'Rugosa Rose'
mean	9.44	12.39	17.14
std. deviation	0.66	0.74	0.83

Leaf width (cm)

	'BOC rogosnif'	'Foxi Pavement Rose'	'Rugosa Rose'
mean	5.29	7.13	8.74
std. deviation	0.43	0.80	0.96

Colour of flower bud (RHS)

	'BOC rogosnif'	'Foxi Pavement Rose'	'Rugosa Rose'
outer side	closest N66A	61B	closest to 61B

Colour of the inner side of the petal (RHS)

	'BOC rogosnif'	'Foxi Pavement Rose'	'Rugosa Rose'
main	N74A	N74C-D	closest to NN78A

Colour of the outer side of the petal (RHS)

	'BOC rogosnif'	'Foxi Pavement Rose'	'Rugosa Rose'
main	NN78D	closest to 77D	NN78C-D

Click on image for larger view

Rose: ‘BOC rogosnif' (left) with reference variety ‘Foxi Pavement Rose' (right)

Click on image for larger view

Rose: ‘BOC rogosnif' (left) with reference variety ‘Rugosa Rose' (right)