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Parentage / Origin
Cascade Delight was produced from a cross of
Chilliwack and WSU 994 made in 1989 at the Washington State
University (WSU) Puyallup Research and Extension Center. The
original seedling was selected in 1992 by Dr Pat Moore and evaluated
as WSU 1090. Season
In trials in
the Pacific Northwest (PNW) of the USA the midpoint of harvest for
Cascade Delight is similar to Meeker and Tulameen, but the length of
the harvest season is slightly shorter.
Plant Characteristics
Cascade
Delight is very vigorous with long fruiting laterals and produces an
adequate number of canes, similar to Meeker. Although the basal
portions of young canes (less than 30 cm tall) have 20-40 spines per
cm of cane, the upper portions of taller canes (over 1 m in height)
have much smaller and fewer spines (<5 spines per cm).
Fruiting Characteristics
Cascade
Delight produces very large, long conic shaped berries, which are
glossy and very firm. In trials in the PNW of the USA the fruit of
Cascade Delight have been 20% larger than Tulameen and produced
similar yields (Table 1). The berries have an excellent fresh red
raspberry flavour and shelf life, being firmer than Tulameen.
Table 1. Harvest data from six harvest seasons,
WSU Puyallup.
| Cultivars |
Yield
(kg/hill) |
Fruit wt
(g) |
Fruit firmness
(N) |
Mid-point of
harvest |
Length of
harvest (days) |
| Cascade Delight |
3.95 |
4.90 |
2.07 |
7/22 |
24 |
| Tulameen |
3.51 |
4.06 |
1.77 |
7/21 |
29 |
Pest & Disease Resistance
Cascade Delight is susceptible to the large
raspberry aphid (Amphorophora agathonica), the vector for the mosaic
virus complex, and to raspberry bushy dwarf virus (RBDV) via pollen
transmission. In some years it has shown high levels of Botrytis
fruit rot in unsprayed plots, but when observed for several years,
did not differ significantly from other cultivars. In unsprayed
plots, the canes had a low incidence of anthracnose (Elsinoe veneta)
and cane botrytis (B. cinerea) and moderate incidence of spur blight
(Didymella applanata). Cascade Delight exhibits some degree of field
resistance to root rot (Phytophthora fragariae var. rubi). In
research plots established at WSU Mt. Vernon in 1998, adjacent plots
of several cultivars, including Tulameen, were all killed or
severely damaged by root rot by 2001, but Cascade Delight remained
vigorous. Potential Uses
The
fruit of Cascade Delight is very large, very firm and glossy with
excellent fresh flavour. These characters would make Cascade Delight
ideally suited for fresh markets. Cascade Delight does not appear to
be suited for machine harvesting even though the fruit releases very
easily from the receptacle. It is very vigorous and has long
fruiting laterals that may interfere with machine harvesting. |
