OSACC Soybean
Ontario Soybean And Canola Committee

TABLE 7. RESISTANT VARIETY PERFORMANCE IN SCN INFESTED FIELDS


Round-up Ready Varieties*
Variety Average of 6 Tests Average of 4 Tests Source of
(2015-2017) (2016-2017) Resistance
Days to Yield Index Days to Yield Index  
Maturity (%) Maturity (%)  
P15T46R2 111 119 110 121 PI 88788
P15T83R 111 101 112 108 PI 88788
DS177P1 -- -- 114 125 PI 88788
P19T39R2 -- -- 115 127 PI 88788
P19T01R 116 121 116 127 PI 88788
PRO 3025R2C 117 136 117 140 PI 88788
DS215Y1 -- -- 118 131 PI 88788
P22T69R 118 135 118 142 Peking
HS 19RYS14 118 136 119 141 PI 88788
P25T51R 119 129 120 134 PI 88788
P24T05R 120 122 120 128 PI 88788
DS244N1 -- -- 121 138 PI 88788
5A255RR2 123 130 123 133 PI 88788
P28T62R -- -- 124 148 Peking
DS268V1 -- -- 125 137 PI 88788
P28T08R 125 134 126 142 PI 88788
93Y05 128 129 129 136 PI 88788
P33T72R 129 135 130 144 PI 88788
** Susceptible Yield Index is: 100%   100%  
Susceptible Yield (RR): 3.16 T/ha   3.05 T/ha  
  46.9 bu/ac   45.3 bu/ac  
 
Conventional Varieties
Variety Average of 6 Tests Average of 4 Tests Source of
(2015-2017) (2016-2017) Resistance
Days to Yield Index Days to Yield Index  
Maturity (%) Maturity (%)  
Skyline 110 111 110 116 PI 88788
OAC Prosper -- -- 114 116 PI 88788
OAC Marvel 116 118 116 124 PI 88788
HS 21CS43 117 111 117 111 PI 88788
AAC 26-15 121 119 120 125 PI 88788
** Susceptible Yield Index is: 100%   100%  
Susceptible Yield (Conv): 3.08 T/ha   2.81 T/ha  
  45.6 bu/ac   41.7 bu/ac  
 
* Roundup Ready (RR) varieties, tested under a RR management system.
** Susceptible Yield Index is based on three high yielding susceptible varieties.
Test locations had moderate to high SCN infestations of 3,000 to 6,000 eggs/100g soil.

2-Year RR Yield vs Maturity Graph



2-Year Conventional Yield vs Maturity Graph



3-Year RR Yield vs Maturity Graph



3-Year Conventional Yield vs Maturity Graph




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