CDC Togo

Annual canarygrass

Denomination: 'CDC Togo'
Previously Proposed Denomination: 'C99048'
Botanical Name: Phalaris canariensis
Applicant/Holder: University of Saskatchewan
Crop Development Centre
4D36 Agriculture Building, 51 Campus Drive
Saskatoon, Saskatchewan
S7N 5A8
Canada
Breeder: Pierre Hucl, University of Saskatchewan, Saskatoon, Saskatchewan
Application Date: 2004-05-14
Application Number: 04-4202
Grant of Rights Date: 2007-03-02
Certificate Number: 2704
Grant of Rights Termination Date: 2025-03-02

Variety Description

Varieties used for comparison: 'CDC Maria' and 'Cantate'

Summary: 'CDC Togo' has a glabrous sheath and blade of the lower leaves and flag leaf blade while the lower leaf sheath and blade and flag leaf blade of 'Cantate' is strongly pubescent. The flag leaf sheath of 'CDC Togo' is glabrous while it is slightly pubescent in 'Cantate'. 'CDC Togo' takes longer to head than 'CDC Maria'. The flag leaf of 'CDC Togo' is slightly shorter than 'CDC Maria' and 'Cantate'. 'CDC Togo' is taller at maturity than 'Cantate' and slightly taller than 'CDC Maria'.

Description:

COLEOPTILE: purple colour at the one leaf stage, reddish to purple in field at four leaf stage.

SEEDLING: erect juvenile growth habit, glabrous sheaths and blades of lower leaves

PLANT: glabrous flag leaf sheath and blade

SEED: glabrous glume and lemma

Origin & Breeding History: C99048 was selected from the cross of Cantate / CDC Maria made in 1995 at the University of Saskatchewan, Saskatoon, Saskatchewan using the approach method in a greenhouse. In the F2, putative F1 derived F2 families were screened for segregation of hull pubescence. 5 out of 355 families segregated. The glabrous segregants were harvested and susequently advanced in a growth room via single seed descent in the F3 generation. C99048 is derived from a bulked F4 panicle hill. It was selected in the F5 for glabrous hulls and higher grain yield relative to CDC Maria. In the F6 and F7 generations C99048 was selected on the basis of higher grain yield and heavier seed weight. C99048 was later named 'CDC Togo'.

Tests & Trials: Test and trials were conducted at the University of Saskatchewan during the summers of 2004 and 2005. There were 4 replicates arranged in an RCB design. Plots consisted of 4 rows, 3.6 metres long with a row spacing of 30.3 cm.


Comparison tables for 'CDC Togo' with reference varieties 'CDC Maria' and 'Cantate'

Note: standard deviations are based on a sample size of 80 plants while the LSD's are based on plot means.

Days to heading (# days from planting to where 50% of heads fully emerged from boot)

  'CDC Togo' 'CDC Maria' 'Cantate'
mean (LSD=0.46) 60 58 60.4

Flag leaf length (cm)

  'CDC Togo' 'CDC Maria' 'Cantate'
mean 10.74 12.57 12.27
std. deviation (LSD=1.08) 2.96 5.53 2.41

Plant height (at maturity) (cm)

  'CDC Togo' 'CDC Maria' 'Cantate'
mean 117.8 115.0 109.67
std. deviation (LSD=1.63) 5.85 5.35 7.12

Maturity (days from planting to maturity)

  'CDC Togo' 'CDC Maria' 'Cantate'
mean (LSD=1.17) 102.5 101 106

Click on image for larger view
CDC Togo
Annual canarygrass: 'CDC Togo' (left) with reference varieties 'CDC Maria' (center) and 'Cantate' (right)

Click on image for larger view
CDC Togo
Annual canarygrass: 'CDC Togo' (left) with reference varieties 'CDC Maria' (center) and 'Cantate' (right)

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