The Georgia Agricultural Experiment Station
College of Agricultural and Environmental Sciences
The University of Georgia

Research Report Number 660
August 1999



             
Griffin, Georgia:
Field Ratings for Resistance to Phoma Blackleg, 1998-99
Variety Blackleg1 Stand2   Variety Blackleg1 Stand2
 
  % diseased no. plants     % diseased no. plants
 
State Spring Canola Trial Entries   Superior Edible Oil Canola Trial Entries
 
G96200C 0 55   FLINTC 3 52
G96200E 0 55   4C4.C.4.3 10 40
RPX06.7.5.M4 0 65   FALCONC 10 50
FLINTC 3 53   4C6.E.1.1 13 28
G96202 3 62   CL106.13.4.G3 13 42
 
G97042B 7 58   4C6.E.2.3 20 43
G98070A 10 53   4C4.C.2.4 23 42
PINNACLE 10 62   4C6.E.1.4 23 37
G97042A 13 55   4C4.C.1 27 48
G97097B 17 62   4C4.C.2.5 30 43
 
OSCARC 17 58   4C4.C.4 30 40
DUNKELDC 20 55   OSCARC 30 42
G97039F 23 43   4C4.C.5.2 33 45
G97097A 23 60   CL104.11.10.4 33 52
G97039C 27 50   CL87.2.8 37 47
 
CLEX57 37 58   CL87.2.8.G1 50 53
KAROO 43 58   C94.210.5 53 50
SPONSOR 47 27   CYCLONEC 60 45
G98071 67 63   4C6.E.2 63 50
CRUSHER 73 53   188.20BC 83 52
 
CYCLONEC 77 48   GLOSSY BINGOC 88 50
GLOSSY BINGOC 87 55  
188.20BC 90 57   Average 35 45
WESTARC 90 42   LSD at 10% Level 3 8
  Std. Err. of Entry Mean 7 3
Average 33 54  
LSD at 10% Level 16 10        
Std. Err. of Entry Mean 7 4        
 
 
Southern Regional Uniform Spring
Canola Trial Entries		   State Winter Canola Trial Entries
 
FLINTC 0 40   FLINTC 0 53
G96200C 3 47   HONK 0 53
G96200E 3 50   EXPRESS 3 50
G96202 3 45   G96038B 3 53
RPX06.7.5.M4 3 47   GR95 0161 3 47
 
CL2078 13 48   FALCON 7 50
CL2070 17 43   MOHICAN 7 50
G97039C 20 45   PS107 7 52
HUDSON 23 48   G96200E 10 58
G97097A 27 42   G96202 10 58
 
OSCARC 33 53   JETTON 13 60
DYNAMITE 37 47   G96012 17 50
BRIGADE 43 45   188.20BC 43 58
CRUSHER 53 47   488.7H.8 43 60
CROWN 67 43   CYCLONEC 53 57
 
CYCLONEC 67 43   GLOSSY BINGOC 80 51
JEWEL 67 48  
QUANTUM 67 48   Average 18 54
SPONSOR 67 25   LSD at 10% Level 22 8
OPTIMUM 500 80 50   Std. Err. of Entry Mean 9 3
 
Average 35 45  
LSD at 10% Level 13 8  
Std. Err. of Entry Mean 5 3  
 
 
National Advanced Winter
Canola Variety Trial Entries		  
 
FLINTC 1 52  
KS6061 3 47  
KS6117 3 50  
KS6120 3 53  
KS6121 3 50  
 
KS6219 3 50  
MO503-1-120 3 48  
MO503-1-49 3 47  
PLAINSMAN 3 48  
FALCON 6 51  
 
CERES 7 50  
KS6102 7 57  
KSB0008 7 50  
MO503-1-1 7 55  
MO503-1-124 7 48  
 
MO503-1-201 7 48  
MO503-1-72 7 50  
WICHITA 7 32  
KS6171 10 47  
MO503-1-104 10 50  
 
MO503-1-167 10 52  
MO503-1-71 10 53  
MO503-1-97 10 43  
488-7H 11 46  
KS6028 13 50  
 
KS6133 13 57  
KSB0056 13 48  
KSB0062-1 13 50  
MO503-1-106 13 53  
MO503-1-50 13 50  
 
MO503-1-63 13 45  
KS6080 17 52  
CYCLONEC 46 53  
188.20BC 63 58  
GLOSSY BINGOC 85 56  
 
Average 13 50  
LSD at 10% Level 10 7  
Std. Err. of Entry Mean 5 3  
1.  Blackleg rated as total percentage of plants killed by blackleg or with severe basal stem canker.
2.  Average number of plants rated of each of the three replications.
C   Check variety.
Bolding indicates entries with blackleg resistance ratings equal to the best rated entry within a column based on Fisher's protected LSD (P = 0.10).
NOTE:  This nursery was located adjacent to fields infected with Phoma blackleg the previous season. Disease severity was further increased by spreading infected stubble over the nurseries shortly after planting.
 
Data collected by D. V. Phillips and D. Spradlin.