CDC Kamsack

Barley

Variety Description

Varieties used for comparison: 'CDC Sisler' and 'Legacy'

Summary: 'CDC Kamsack' differs from the reference varieties, 'CDC Sisler' and 'Legacy' mainly in frequency of plants with recurved flag leaves, spike glaucosity, length and curvature of the first segment of the rachis, spiculation of the lemma awns and rachilla hair length. There is a medium number of plants with recurved flag leaves in 'CDC Kamsack' whereas it is very low to low in 'CDC Sisler'. The spike of 'CDC Kamsack' has medium glaucosity whereas it is weak on 'CDC Sisler'. The first segment of the rachis of 'CDC Kamsack' is short to medium in length whereas it is long on 'Legacy'. The curvature of the first segment of the rachis of 'CDC Kamsack' is very weak to weak whereas it is weak-medium to medium on 'CDC Sisler'. The lemma awns of 'CDC Kamsack' are rough whereas they are smooth on 'CDC Sisler' and semi-smooth on 'Legacy'. The rachilla hairs are short on 'CDC Kamsack' whereas they are long on both reference varieties.

Description:

JUVENILE PLANT: intermediate growth habit, green coleoptile
PLANT AT TILLERING: no pubescence on sheath of lower leaves, erect to intermediate growth habit

FLAG LEAF (at booting): medium frequency of plants with recurved flag leaves, weak-medium to medium pubescence on blade, strong glaucosity on sheath, very weak pubescence on sheath
FLAG LEAF AURICLES: weak to weak-medium intensity of anthocyanin colouration, very weak pubescence on margins

SPIKE: mid-season emergence, platform collar, erect to slightly semi-erect attitude, medium-strong to medium glaucosity, parallel shape, dense to medium-dense
LEMMA AWNS: medium-strong to medium anthocyanin colouration at tips, longer than spike, rough (barbs from tip to next to the kernel)
FIRST SEGMENT OF RACHIS: short to medium length, very weak to weak curvature
MEDIAN SPIKELET: glume and its awn longer than grain

KERNEL: very weak to weak anthocyanin colouration of nerves of lemma, whitish to weakly coloured aleurone layer, husk present, short rachilla hairs, very weak to medium-strong spiculation of inner lateral nerves of dorsal side of lemma, very weak hairiness of ventral furrow, medium to strong clasping of lodicules, transverse crease to incomplete horseshoe basal markings, medium to long, medium to medium-wide

AGRONOMIC TRAITS: fair to good resistance to lodging, shattering, straw and neck breaking, fair to good tolerance to drought, good malting quality

DISEASE: moderately susceptible to Common root rot (Cochliobolus sativus, Fusarium spp.), moderately resistant to Spot blotch (Cochliobolus sativus), susceptible to Net blotch (Pyrenophora teres) and Septoria speckled leaf blotch (Septoria passerinii), moderately susceptible to Scald (Rhynchosoporium secalis), susceptible to Stem rust (Puccinia graminis) and Fusarium head blight (Fusarium graminearum), resistant to Covered smut (Ustilago hordei) and False loose smut, Black semi-loose smut (Ustilago nigra) and moderately susceptible to True loose smut (Ustilago nuda).

Origin & Breeding History: 'CDC Kamsack' was developed at the University of Saskatchewan Department of Plant Sciences. It arose from the cross BT471/SM98213 conducted in a crossing nursery at Saskatoon, Saskatchewan in 1999. The F1 to F4 generations were grown as bulk populations where the F1 was increased under glass over the winter of 1999-2000 and the F2 was grown in the field in Saskatoon during the summer of 2000. The F3 was grown in winter nurseries in New Zealand in 2000-2001 and the F4 was grown at Saskatoon in 2001. 'CDC Kamsack' was grown and selected as a single F4 derived F5 row plot at Saskatoon in 2002. Seed from the F5 row plot was bulked as the line SM03152 and was tested in University of Plant Sciences yield trials in 2003-2004 and was further tested as SR410 in the Western Canadian Six-Row Cooperative Registration trials during the summers of 2005-06. Selection criteria included yield potential, plant maturity, plant height, disease resistance and grain quality.

Tests & Trials: Tests and trials for 'CDC Kamsack' were conducted at the University of Saskatchewan, Saskatoon, Saskatchewan during the summers of 2007 and 2008. The trials consisted of two replicates of each variety, with each replication consisting of five rows, 3.7 metres in length, planted in a randomized complete block design. Measured characteristics were based on a minimum of 20 measurements per variety per year.

Comparison tables for 'CDC Kamsack' with reference varieties 'CDC Sisler' and 'Legacy'

Flag leaf length (cm)

Flag leaf width (mm)

Spike length, excluding awns (cm)

Plant height, including awns (cm)

Click on image for larger view

Barley: 'CDC Kamsack' (centre) with reference varieties 'CDC Sisler' (left) and 'Legacy' (right)