AAC Proclaim

Wheat

Denomination: 'AAC Proclaim'
Botanical Name: Triticum aestivum
Applicant/Holder: Agriculture & Agri-Food Canada, Lethbridge
Lethbridge Research Centre, 5403 - 1 Avenue, South
P.O. Box 3000
Lethbridge, Alberta
T1J 4B1
Canada
Breeder: Harpinder S. Randhawa, Agriculture & Agri-Food Canada, Lethbridge, Alberta
Agent in Canada: Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
6000 C&E Trail
Lacombe, Alberta
T4L 1W1
Canada
Tel: (403) 782-8126
Application Date: 2012-12-12
Application Number: 12-7810
Grant of Rights Date: 2015-05-14
Certificate Number: 5021
Grant of Rights Termination Date: 2035-05-14

Variety Description

Varieties used for comparison: 'AC Reed', 'AC Andrew' and 'Sadash'

Summary: The flag leaves of 'AAC Proclaim' are longer and wider than those of 'AC Reed' and 'AC Andrew'. The glaucosity of the flag leaf sheath, spike and culm of 'AAC Proclaim' is absent to very weak whereas it is medium on 'Sadash'. 'AAC Proclaim' heads earlier than 'AC Andrew' and 'Sadash'. At maturity, the plants of 'AAC Proclaim' are taller than those of the reference varieties. The kernel type of 'AAC Proclaim' is soft red whereas it is soft white in the reference varieties.

Description:

PLANT: soft red spring type, erect growth habit at the 5 to 9 tiller stage, heads emerge mid-season, matures mid-season

SEEDLING: absent or very weak intensity of anthocyanin colouration of coleoptile, glabrous lower leaf sheaths and blades

FLAG LEAF: absent or very low frequency of plants with recurved/drooping flag leaves, weak anthocyanin colouration of auricles, absent or very weak glaucosity of sheath and lower side of leaf blade, glabrous blade and sheath

CULM NECK: absent or very sparse density of uppermost node, absent or very weak glaucosity, straight
STRAW: thin pith in cross section, no anthocyanin colouration at maturity
SPIKE: absent to very weak glaucosity, tapering shape in profile, medium density, white at maturity, inclined attitude, absent or very sparse hairiness of convex surface of apical rachis segment
AWNS: shorter than length of spike, white
LOWER GLUME: medium length and width, glabrous
LOWER GLUME SHOULDER: medium width, straight shape
LOWER GLUME BEAK: short to medium length, strongly curved

KERNEL: medium red, medium size, medium length and width, elliptical shape, angular cheek, medium length brush hairs, medium width and depth of crease
GERM: medium size, elliptical in shape

AGRONOMIC CHARACTERISTICS: good resistance to shattering

DISEASE REACTION: resistant to Fusarium Head Blight (Fusarium graminearum, Fusarium species) and Leaf Rust (Puccinia triticina), moderately resistant to Loose Smut (Ustilago tritici) and Stem Rust (Puccinia graminis f. sp. tritici), moderately susceptible to Kernel Black Point (principally caused by Alternaria alternata) and susceptible to Stripe Rust (Puccinia striiformis)

Origin & Breeding History: 'AAC Proclaim' (experimental designations GP80, SWS416) was derived from the cross 'FHB37' / 'AC Reed' made in 2004 at the Agriculture and Agri-Food Canada Lethbridge Research Centre, Lethbridge, Alberta using a modified bulk breeding technique. F1 plants were increased in the greenhouse in the fall of 2004 with the F2 seeds grown out in bulk plots in 2005. F3 heads were selected from spaced-plant bulk plots in 2006 with F4 headrows being grown out in Lincoln, New Zealand during the winter of 2006-2007. Selected rows were harvested in bulk and five F5 bulk plots were grown in Lethbridge in 2007 where selections were made for plant type, plant height, maturity and straw strength. The F6 was grown in Leeston, New Zealand in 2007-2008. In 2008, selected rows were harvested individually and grown as replicated yield trials in Lethbridge and Bow Island, Alberta and in a Fusarium Head Blight disease nursery in Portage La Prairie, Manitoba. Based on agronomic performance and resistance to Fusarium Head Blight, one line was evaluated in the Soft White Spring Wheat Cooperative Registration trial as SWS416 at 11 locations across Western Canada in 2009. Although the line did not meet the quality requirements for Canadian Western Soft White Spring wheat class, it had sufficient merit to continue evaluation in the General Purpose Wheat Cooperative Registration trial as GP80 in 2010 and 2011.

Tests & Trials: Tests and trials were conducted in 2012 and 2013 in Lethbridge, Alberta. Plots consisted of 4 rows per plot with a row length of 3.0 metres and a row spacing of 23 cm. There were 3 replicates arranged in a RCB design. Measured characteristics were based on a minimum of 30 measurements per variety per year.


Comparison tables for 'AAC Proclaim' with reference varieties 'AC Reed', 'AC Andrew' and 'Sadash'

Flag leaf length (cm)

  'AAC Proclaim' 'AC Reed' 'AC Andrew' 'Sadash'
mean 2012 28.94 19.28 22.52 28.03
std. deviation 2012 2.10 2.13 1.62 2.67
mean 2013 28.16 27.04 23.64 25.78
std. deviation 2013 0.83 1.12 1.56 1.07

Flag leaf width (cm)

  'AAC Proclaim' 'AC Reed' 'AC Andrew' 'Sadash'
mean 2012 2.15 1.62 1.97 1.99
std. deviation 2012 0.18 0.13 0.18 0.17
mean 2013 1.81 1.55 1.60 1.90
std. deviation 2013 0.15 0.16 0.12 0.13

Days to heading

  'AAC Proclaim' 'AC Reed' 'AC Andrew' 'Sadash'
mean 2012 61 59 63 63
mean 2013 63 62 65 66

Plant height (cm)

  'AAC Proclaim' 'AC Reed' 'AC Andrew' 'Sadash'
mean 2012 102.20 90.37 96.20 95.21
std. deviation 2012 2.93 1.92 2.55 1.47
mean 2013 108.20 94.90 100.87 106.23
std. deviation 2013 2.31 2.23 2.24 2.67

Click on image for larger view
AAC Proclaim
Wheat: 'AAC Proclaim' (top) with reference varieties 'AC Reed' (centre top), 'AC Andrew' (centre bottom) and 'Sadash' (bottom)

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