Table 5. Visual root scores for wheat at soft dough stage grown at selected locations in North Dakota, 1999.
|
Location |
Treatment |
Subcrown1 internode rating |
Color index2 |
Root mass3 |
|
Amidon
|
Fumigate |
2.3 |
2.8 |
3.5 |
|
Natural |
2.7 |
3.3 |
2.5 |
|
|
Mean |
2.5 |
3.0 |
3.0 |
|
|
CV % |
16.0 |
13.6 |
19.2 |
|
|
LSD .05 |
NS |
NS |
NS |
|
|
Center
|
Fumigate |
2.1 |
2.1 |
3.0 |
|
Natural |
2.9 |
3.3 |
2.3 |
|
|
Mean |
2.5 |
2.7 |
2.6 |
|
|
CV % |
14.7 |
39.3 |
25.8 |
|
|
LSD .05 |
NS |
NS |
NS |
|
|
Garrison
|
Fumigate |
2.2 |
2.0 |
2.8 |
|
Natural |
2.7 |
2.8 |
2.3 |
|
|
Mean |
2.4 |
2.4 |
2.5 |
|
|
CV % |
15.8 |
25.8 |
11.5 |
|
|
LSD .05 |
NS |
NS |
NS |
|
|
Hazen
|
Fumigate |
1.9 |
1.4 |
3.4 |
|
Natural |
2.5 |
1.9 |
3.0 |
|
|
Mean |
2.2 |
1.6 |
3.2 |
|
|
CV % |
9.3 |
43.5 |
5.5 |
|
|
LSD .05 |
0.5 |
NS |
NS |
|
|
Garrison
|
Fumigate |
2.2 |
2.0 |
2.8 |
|
Natural |
2.7 |
2.8 |
2.3 |
|
|
Mean |
2.4 |
2.4 |
2.5 |
|
|
CV % |
15.8 |
25.8 |
11.5 |
|
|
LSD .05 |
NS |
NS |
NS |
|
|
Selfridge
|
Fumigate |
1.7 |
1.3 |
2.9 |
|
Natural |
2.1 |
2.3 |
2.5 |
|
|
Mean |
1.9 |
1.8 |
2.7 |
|
|
CV % |
13.3 |
16.5 |
6.6 |
|
|
LSD .05 |
NS |
0.6 |
NS |
|
|
Williston
|
Fumigate |
2.1 |
1.8 |
3.3 |
|
Natural |
2.4 |
2.3 |
3.2 |
|
|
Mean |
2.2 |
2.1 |
3.3 |
|
|
CV % |
22.9 |
28.4 |
21.4 |
|
|
LSD .05 |
NS |
NS |
NS |
|
1
Subcrown internode rating, 0-4. 0 = no infection, 1 = less than 25% internode infected, 2 = 25-50% internode infected, 3 = 51-75% of internode infected, multiple lesions, and 4 = 75-100 % of internode infected, lesions coalesced.2
Root color index, 1-4. 1 = white, 4 = dark brown.3
Root mass, 1-4. 1 = few roots and 4 = substantial root system.