OREGIN Diversity Demonstration Trial
| Background Information | 2009/2010 Trials (Year 1) | 2010/2011 Trial (Year 2) |
Winter Trial 2009/2010 and Spring Trial 2010 (Year 1)
Downloads:
- Trial line lists and plot layout for Winter 2009/2010 and Spring 2010 Trials
- Trial score sheet for Winter 2009/2010 Trial
For the Winter Trial 2009/2010, 61 winter varieties (48 WOSR, 8 fodder/forage/salad kales, 4 swede, 1 synthetic) were included, see 2009/2010 line list
. The trial was drilled by KWS on 28/08/2009. The control line, to assess variation across the trial, was Temple. This HGCA Recommended List variety has good yield, NUE, light leaf spot resistance, stem stiffness and resistance to lodging. Temple is also the maternal parent for the OREGIN new mapping populations.
In addition, 10 winter OSR lines, previously characterised in the Defra-LINK project ‘Breeding oilseed rape with a reduced requirement for nitrogen fertiliser’ (LK0979; NUE LINK) and five lines that vary in PUE from China, were included for comparison.
For the Spring Trial 2010, 23 spring varieties (22 SpOSR/1 spring forage rape) were selected from the BnaDFFS, see list 2009/2010 line list
. The trial was hand-sown to allow for a similar row-plot layout to that of the winter trial on 08/04/2010, together with the control line, Heros, from the HGCA recommended list. Heros has a proven track record of consistently high gross output, high oil content combined with high seed yields and has a good all-round agronomic package.Additional information 2009/2010 (year 1)
- Two nitrogen treatments: residual (low) and 210 kg ha-1 total available N
- Two replicate plots for each N treatment
- Each replicate plot was drilled (Winter)/hand-sown (Spring) in four rows 1 x 1.5 M; 120 seed per plot
- Trial surrounds were drilled (80 seeds/m2) with Astrid (Winter) (80 seeds/m2) or a 50:50 mixture of turnip rape ‘Agat’ and spring OSR hybrid ‘Delight’(Spring)
- Early establishment: trial was netted, replaced later with pigeon gun, flappers and humming tape
- Control of pests, diseases according to standard agronomic procedures
Plot layout
A randomised complete block design was used, see 2009/2010 plot layout
.Additional assessments for the Winter Trial 2009/2010 included
- Flowering time/periodicity (Sam Cook, RRES)
- Pollen beetle numbers and survey of beneficial insect use (Sam Cook, RRES)
- Disease severity assessment of Phoma Leaf Spot (Leptosphaeria maculans) (Yong-Ju Huang, RRES)
- Disease severity assessment of Light Leaf Spot (Pyrenopeziza brassicae) May 2010 (Sandra Chapman, Simon Griffiths, NIAB)
- Disease severity assessment destructive) of Phoma Stem Canker (Leptosphaeria maculans), Light Leaf Spot (Pyrenopeziza brassicae) and Sclerotinia Stem Rot Sclerotinia sclerotiorum) July 2010 (Jon West, Yong-Ju Huang, RRES)
- Pod senescence and dehiscence (Jerry Roberts, Uni Notts)
- Senescence; pod and seed characteristics (Carol Wagstaff, Emma Bennett, Uni. Reading)
- Straw composition analyses (Ian Bancroft, Keith Waldron, JIC/IFR)
- Plant height, pod maturity, stem stiffness (Simon Kighley, Simon Griffiths, NIAB)
- Seed size measurements of harvested seed (Jackie Barker, RRES)
- Seed composition of bagged and open pollinated seed (Jackie Barker, RRES)
Timetable
