June bearing strawberry
cultivar for southern Quebec conditions
the first June-bearing strawberry cultivar (Fragaria x
ananassa Duch.) bred specifically for southern Quebec
conditions. This cultivar is being released by McGill
Univ. And Agriculture Canada. 'Chambly' was released
because of its high yields of firm, deep red fruit with
raised neck, elevated calyx, and uniform well-colored
flesh. Therefore, it is recommended for fresh market and
processing. The name 'Chambly' has historical
significance in southwestern Quebec, for it was a
garrison town in the fortification network of the
Richelieu Valley, a thoroughfare between the St.
Lawrence and Hudson rivers.
'Chambly' (tested as SJ84187-3) resulted from a 1982
cross between 'Sparkle' and 'Honeoye'. 'Sparkle', a
previously popular commercial cultivar in eastern
Canada, is noted for its high fruit flavor (Craig,
1979). 'Honeoye' is a high-yielding cultivar with large
fruit size well-adapted to the northeast (Estabrooks and
Luffman, 1989). 'Chambly' has been tested at Agriculture
Canada, L'Acadie, Quebec, since 1984,. L'Acadie is
located 35 km south of Montreal (45o) at an elevation of
-46 m above sea level. Climate at L'Acadie is
characterized by low temperatures in winter (below
-25C), cool, humid conditions in spring, and warm, humid
conditions (25 to 35C, 70% RH) in summer.
'Chambly' plants are of low
vigor, medium in size, with four to six inflorescences
per plant, and can tolerate winter temperatures below
-25C (with 10 cm of straw mulch cover)" Leaflets
are slightly folded, medium size, dark green, obovate to
spherical, with sharp serrations. Petioles are
moderately long and slightly drooping. Plants have a
sparse appearance. Inflorescences are held erect on
long, moderately thick peduncles during bloom, becoming
arched (semi-erect) as the fruit mature. Inflorescences
generally have 10 to 20 flowers.
Fruit shape is conic and the calyces are reflexed. Fruit
are medium size (8 to 10 g) with a white, raised (2 to 3
mm) neck. Skin is shiny and deep red at maturity, and
the flesh is red throughout. Fruit flavor (sweetness) is
similar to that of 'Bounty' and 'Sparkle' (Table 1).
Fruits are firm, similar to 'Kent', and can be decapped
as easily as 'Glooscap'. The calyx does not separate
from the fruit at harvest time. Percent juice lost after
thawing did not differ sinificantly (P = 0.05, n = 8)
among cultivars and ranged from 42% to 53%. 'Chambly'
has outyielded 'Bounty', 'Honeoye', 'Redcoat', and 'Sparkle'
in our trials. Plants are partially tolerant of the
No symptoms of powdery mildew (Sphaerotheca macularis
Walls ex Fr.), leaf scorch (Diplocarpon earlina Ell. And
Ev.), or leaf blight (Dendrophoma obscurans Ell. And
Ev.) Were observed during the course of its evaluation.
Susceptibility of this cultivar to red stele
(Phytophthora fragariae Hickman) is not known and
further experiments are needed to determine the degree
of resistance to different races of P. fragariae.
Contact the licenced nurseries
or the breeder.
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