Technical Bulletin: Amisk

 
 
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 Amisk is a six rowed semi dwarf with:
· more plump seed than both the two row and six row checks,
· strong straw for decreased lodging, and
· a better than average combination of disease resistance to stem rust, Septoria, and spot form net blotch.

These traits will make Amisk a good grain and forage barley for western Canada.

Strengths
· Plumps are 16% higher than AC Ranger and 14% higher than Vivar.
· Plumps are also higher than two row checks AC Metcalfe and Xena, by 5% and 7%, respectively.
· Good lodging resistance, better than Vivar and AC Ranger.
· Good disease package with moderate to good resistance to a range of key diseases: resistant to stem rust and Septoria; moderately resistant to spot-form of net blotch; intermediate resistance to net-form of net blotch, scald, spot blotch, and common root rot.
· Forage yields similar to Vivar.
· Quality traits equal to or exceed that of Vivar.

Neutral Traits
· Grain yields similar to checks Vivar and AC Ranger.
· Heading and maturity similar as the checks.
· Plant height equal to Vivar and significantly shorter than AC Ranger.
· 1000 kernel weight and test weight equal to Vivar and AC Ranger.
· Crude protein similar to Vivar.
· DON levels are similar to those of the checks.

Weaknesses
· Susceptible to barley yellow dwarf virus.
· Weaker in loose smut (Ustilago nuda) and covered smut resistance.


Table 1.  Mean grain yield (kg/ha) by soil zone in the 2011 and 2012 Western Cooperative Six-Row Barley Trials.

Entry
Eastern Black1
Brown
Western Black2
Grey Wooded
Overall
% AC Ranger
% CDC Mayfair
Amisk
5354
5385
7545
5050
5696
98
104
AC Ranger
5124
5921
7128
5707
5815
100
106
Vivar
5075
5428
7632
5645
5757
99
105
CDC Mayfair
5155
4924
7088
5132
5477
94
100
Celebration
5058
5052
6961
5232
5460
94
100
Coop Mean
5173
5184
7352
6153
5666
Station Years
12
8
6
4
30
Coop trials had 21 total entries in 2011, 20 in 2012.  1 Manitoba and Saskatchewan (six locations).  2 Alberta (three locations). 

Table 2.  Mean agronomic performance in the 2011 and 2012 Western Cooperative Six-Row Barley Trials.

Entry
Heading
Maturity
Height
Lodging
Test Wt
1000K Weight
Plump >6/64
(days)
(days)
(cm)
(1-9)
(kg/hL)
(g)
(%)
Amisk
55.0
97.0
75.1
2.1
60.4
40.8
87.0
AC Ranger
55.9
98.2
79.5
5.0
61.0
40.6
72.5
Vivar
55.8
97.0
75.5
3.2
60.9
40.5
74.9
CDC Mayfair
54.0
95.5
82.1
3.6
61.4
38.4
84.6
Celebration
54.3
95.0
81.0
3.6
63.1
36.7
83.4
Mean
54.5
96.4
80.0
3.5
61.0
39.3
79.9
LSD 0.05
2.6
0.9
1.6
1.2
0.8
1.0
3.1
Station Years
30
23
33
9
28
27
23
Lodging score 1-9, 9 being up to 100% lodged. LSD - least significant difference, the value by which means must differ in order to be considered significant.

Table 3.  Mean yield and agronomic performance from the 2011 and 2012 FCDC yield trials.

Line / Variety
Yield (Kg/ha)
Anthesis (days)
Maturity (days)
Height (cm)
Test Wt. (kg/hL)
1000 K Wt. (g)
Plump >6/64 (%)
Amisk(M98206002)
7636
55
102
85
60
43
86
AC Ranger
7912
56
103
90
61
43
73
Vivar
7750
57
102
83
62
43
74
Sundre
7052
56
102
93
64
43
77
Station Years
11
11
11
10
11
11
11

Table 4.  Mean silage yield and quality characteristics in the 2011 and 2012 FCDC silage trials.

Line/Variety
Dry Silage Yield (kg/ha)
% of Vivar
Protein (%)
ADF (%)
NDF (%)
Starch (%)
Lignin (%)
NDF30 (%)
AC Ranger
15362
104
10.6
29.5
46.9
17.2
4.0
49.5
Chigwell
14711
100
11.9
31.3
49.8
16.5
4.3
47.9
Amisk (M98206002)
15700
107
11.4
29.6
46.0
17.3
3.9
48.9
Vivar
14705
100
10.9
29.6
48.5
17.7
4.3
47.0
Mean
15006
11.5
29.7
47.2
17.0
4.1
48.2
Standard Error
235
0.2
0.5
0.7
0.5
0.1
0.3
ADF - Acid Detergent Fibre; NDF - Neutral Detergent Fibre; NDF30 - In Vitro Forage Digestibility or disappearance of NDF from forage incubated in rumen fluid for 30 hrs.

Table 5.  Disease ratings.

Line/Variety
Loose Smut
Other Smuts
Root Rot
Scald
Spot Form Blotch
Net Form Blotch
Fusarium Head Blight
Amisk
VP
P
P
F
G
F
VP
AC Ranger
P
F
G
P
G
F
VP
Vivar
F
VG
G
F
G
F
VP
CDC Mayfair
VP
G
F
VP
G
P
P
VG – very good, G – good, F – fair, P – poor, VP – very poor. Amisk data from Western Coop, checks from Alberta Seed Guide.
 
 
 
 
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For more information about the content of this document, contact Erin Collier.
This information published to the web on August 1, 2013.
Last Reviewed/Revised on September 15, 2016.