Trinity a Growers Guide
Mark Nightingale
Plant Breeder
Picking a Winner in the UK !
 Task
• Identify and select varieties for the U.K. market
 Elsoms Sites
• Six U.K. Trial locations
• Five are co-located with Official trials
• Three specific disease testing locations in the U.K.
1. LLS Specific nurseries - EW region & Scotland
2. Canker: specific nurseries in the EW region
3. Club root: specific nurseries - U.K. + Europe
1
Yield
• Data on all slides in the presentation is taken from the HGCA Candidate list for England and Wales and
where appropriate from the Full Recommended list 2013.
• For both Candidate and Recommended lists the control varieties are the same, DK Cabernet, Excalibur,
Vision and Flash.
• The RL data is a 3 or 4 year mean.
• The Candidate list data is a 2 year mean.
• There will be slight variances in the results for the control varieties between the two lists due to the difference
in years used to calculate the means.
2
Gross Output – OP’s
108
107
106
105
105
104
103
103
103
103
102
102
102
102
DK
Camelot
Ventura
Quartz
101
100
99
98
Trinity
3
Rivalda
DK
Sesame
Cabernet
Gross Output – Hybrids (Trinity)
108
107
106
106
105
104
105
105
104
101
100
99
4
105
104
103
102
106
102
104
Agronomy
• Data on all slides in the presentation is taken from the HGCA Candidate list for England and Wales and
where appropriate from the Full Recommended list 2013.
• For both Candidate and Recommended lists the control varieties are the same, DK Cabernet, Excalibur,
Vision and Flash.
• The RL data is a 3 or 4 year mean.
• The Candidate list data is a 2 year mean.
• There will be slight variances in the results for the control varieties between the two lists due to the difference
in years used to calculate the means.
5
Establishing the Crop
 Good autumn vigour
 Strong rapid development
 Robust autumn plant architecture
 Good winter hardiness - not prostrate
 Strong early spring growth reported from 2013 seed crops.
6
Earliness – OP’s
9
Flowering
Maturity
8
7
7
6
6
5
7
6
5
5
4
4
6
6
5
4
6
5
4
3
Trinity
7
Rivalda
DK
Sesame
DK
Cabernet
Camelot
Ventura
Quartz
Earliness - Hybrids (Trinity)
9
Flowering
8
8
7 7
7
6
6
5
4
8
Maturity
5
6 6
7
8
7 7
6
6
5
5
5
6
5
Plant Height – OP’s
170
165
160
160
155
153
150
150
145
144
148
146
142
140
135
130
Trinity
9
Rivalda
DK
Sesame
DK
Cabernet
Camelot
Ventura
Quartz
Plant Height - Hybrids
170
163
160
160
156
154
149
150
144
139
140
130
122
120
110
10
152
Standing Power – OP’s
9
9
8
7
8
8
7
8
7
Resistance to lodging at flowering
Stem Stiffness at Harvest
8 8
8
7 7
7
7
6
6
5
Trinity
11
Rivalda
DK
Sesame
DK
Cabernet
Camelot
Ventura
Quartz
Standing Power - Hybrids (Trinity)
9
9
Resistance to lodging at flowering
Stem Stiffness at harvest
8
7
6
5
12
8
8 8
7
8
8 8
7 7
8
8 8
7
8 8
8 8
Disease Resistance
• Data on all slides in the presentation is taken from the HGCA Candidate list for England and Wales and
where appropriate from the Full Recommended list 2013.
• For both Candidate and Recommended lists the control varieties are the same, DK Cabernet, Excalibur,
Vision and Flash.
• The RL data is a 3 or 4 year mean.
• The Candidate list data is a 2 year mean.
• There will be slight variances in the results for the control varieties between the two lists due to the difference
in years used to calculate the means.
13
Disease Scores – OP’s
9
9
LLS
Canker
8
7
7
6
7 7
6
6
5 5
5
6
5
5 5
5
4
4
3
Trinity
14
Rivalda
DK
Sesame
DK
Cabernet
Camelot
Ventura
Quartz
Disease Scores - Hybrids
9
8
7
7
6
6
7
6
3
2
15
Canker
7
6
6
6
5
5
4
LLS
8
4
5
5
5
4
5
4
3
Verticillium Wilt
 Not just a European disease…..
 An increasing problem in the UK!
 Dr Gladders’ recommendations for managing the risk were
1.
Determine its prevalence on individual farms
2.
Good agronomy – a strong plant holds off verticillium
3.
Extended rotations
4.
Variety choice
 Trinity has good resistance –
16
1.
Galileo parent has very good resistance
2.
Trinity performed excellently in the Gottingen trials.