Letham Shank Farm - Crops, Machinery and Livestock

 

Growth Stages in Canola (Oilseed Rape)


The descriptions of the growth stages of the decimal code for oilseed rape.
 

0 Germination 5 Pod Development
0,0 Dry seed 5,0 Lowest pods more than 2 cm long
0,1 --- 5,1 10% potential pods more than 2 cm long
0,2 Imbibed seed 5,2 20% potential pods more than 2 cm long
0,3 --- 5,3 30% potential pods more than 2 cm long
0,4 Radicle (root) emerged 5,4 etc
0,5 --- 5,5  
0,6 Hypocotyl emerged 5,6  
0,7 --- 5,7  
0,8 Cotyledons emerged 5,8  
0,9 --- 5,9 All potential pods more than 2 cm long
       
1 Leaf Production 6 Seed Development
1,0 Both cotyledons unfolded and green   The following descriptions should normally be applied to the lowest third of the raceme on the main stem
1,1 First true leaf exposed 6,1 Seed expanding
1,2 Second true leaf exposed 6,2 Most seeds translucent but full size
1,3 Third true leaf exposed 6,3 Most seeds green
1,4 Fourth true leaf exposed 6,4 Most seeds green - brown mottled
1,5 Fifth true leaf exposed 6,5 Most seeds brown
  etc 6,6 Most seeds dark brown
1,10 About tenth true leaf exposed 6,7 Most seeds black but soft
  etc 6,8 Most seeds black and hard
1,15 About fifteenth true leaf exposed 6,9 All seeds black and hard
       
2 Stem Extension 7 Leaf Senescence
2,0 No internodes detectable (“rosette”)    
2,1 One internode detectable   No subdivisions identified for this growth stage
2,2 Two internodes detectable    
2,3 Three internodes detectable 8 Stem Senescence
  etc    
2,10 Ten internodes detectable 8,1 Most of stem green
    8,2  
    8,3  
    8,4  
3 Flower Bud Development 8,5 Half of stem green
  The following descriptions should normally be applied to the raceme on the main stem (ie the terminal branch) 8,6  
3,0 Only leaf buds present 8,7  
3,1 Flower buds present but enclosed by leaves 8,8  
3,2 --- 8,9 Little of stem green
3,3 Flower buds visible from above (“green bud”)    
3,4 Flower buds level with leaves 9 Pod senescence
3,5 Flower buds raised above leaves 9,0 Most pods on main stem raceme green (lowest third)
3,6 First flower stalks extending 9,1  
3,7 First flower buds yellow 9,2  
3,8 --- 9,3  
3,9 --- 9,4  
    9,5 Half pods on main stem raceme green
4 Flowering 9,6  
4,0 First flower open 9,7  
4,1 10% all buds opened 9,8  
4,2 20% all buds opened 9,9 Few pods on main stem raceme green
4,3 30% all buds opened    
4,4 etc    
4,5      
4,6      
4,7      
4,8      
4,9 All viable buds on raceme opened    




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