Winter Wheat Latest Safe Sowing Dates 2001

True winter wheats and barleys need a cold period to become vernalised to make the change between
 vegetative and reproductive growth. 
Many varieties can be sown in early spring with a reasonable chance of success if ground conditions are
 satisfactory.  The yield potential can be lower than spring varieties sown at the same time.
Although sowing after the latest safe sow date can sometimes be successful - complete crop failure can occur
if the ears do not develop.
Winter Oats do not need vernalisation - but sown after 1st week March will be lower yielding and later maturing
than spring varieties.  Good for whole crop as gut fill - large yield - poor quality**.
Clients are advised to wait until ground conditions allow safe sowing after Christmas - Jan - Feb. Check from the
list below and sow at 1.5-2cwt per acre.  If ear development is poor - whole crop by Mid July**. 

 

Variety -
Old & New
Yield with
& without
Fungicide
Stand Short Early Shed Sprout Latest safe sowing date Mildew YR BR Sept
Nod
Sept
Trit
Ear blight Eye
spot
Protein t (%) 1000 grain weight (g)
Claire 102 75 8 7 7 7 4 End Feb 4 9 9 7 7 6 7 Soft 11.9 44.4
Option 103 77 7 7 7 - - End Feb 4 9 7 5 5 (6) 6 Hard 12.1 43.6
Deben 106 81 6 6 7 - - Mid Feb 5 9 7 7 7 (6) 5 Soft 11.5 49.7
Genghis Mid Feb
Savannah 105 68 7 7 6 7 6 Mid Feb 8 5 9 5 4 6 6 Hard 11.0 51.4
Soissons 91 70 6 7 9 6 7 Mid Feb 8 8 2 5 6 5 4 Hard 13.1 42.6
Tanker 107 70 8 8 7 - - Mid Feb 7 7 8 5 4 (5) 6 Hard 11.7 50.0
Beaver End Jan
Biscay 104 74 6 7 7 - - End Jan 5 5 9 6 6 (8) 5 Hard 11.6 50.5
Buchan 100 73 9 8 6 7 6 End Jan 7 4 9 5 5 6 6 Soft 11.7 45.7
Charger 99 73 5 8 8 5 2 End Jan 7 9 6 6 5 4 5 Hard 12.1 43.6
Consort 102 65 8 8 6 6 6 End Jan 6 9 5 6 4 6 6 Soft 11.8 46.0
Equinox 102 71 9 9 7 6 5 End Jan 5 6 9 6 5 6 6 Hard 11.8 51.0
Haven End Jan
Hereward 91 72 8 7 7 6 5 End Jan 6 7 8 7 6 6 4 Hard 13.2 45.3
Hunter End Jan
Madrigal 102 71 8 8 6 7 6 End Jan 6 3 9 6 5 6 6 Soft 11.9 45.2
Malacca 98 72 8 8 8 7 6 End Jan 7 9 8 7 6 6 5 Hard 12.3 42.1
Napier 105 75 7 8 7 7 5 End Jan 6 4 9 6 5 4 5 Hard 11.6 50.6
Reaper End Jan
Rialto 99 76 6 6 7 5 6 End Jan 6 6 4 6 5 5 6 Hard 12.7 48.7
Riband 101 59 8 7 7 6 6 End Jan 6 6 3 4 3 5 6 Soft 11.6 49.5
Shamrock 96 76 8 8 7 7 5 End Jan 8 8 4 7 6 6 4 Hard 12.7 42.0
Abbot End Jan