Root wt (g)a | |||
---|---|---|---|
Cultivar | Infested | Noninfested | p = b |
aM. xenoplax population collected in the southern Willamette Valley, OR (OR-SWV). Vines grown for 32 wk in soil infested initially with ~1.0 M. xenoplax g−1 soil. Roots washed, oven-dried at 50°C for 48 hr, and weighed. | |||
bData from paired infested and noninfested plants of each cultivar subjected to Fisher’s LSD to determine if cultivar was tolerant to M. xenoplax. Tolerant rootstocks had root weights of infested vines ≥ root weights of noninfested vines. | |||
cna: too few plants survived to make infested–noninfested comparisons. | |||
Trial 1 | |||
Riesling | 10.9 | 28.5 | 0.006 |
3309C | 13.2 | 19.9 | 0.001 |
Pinot gris | 16.2 | nac | na |
St. George | 18.4 | 21.0 | 0.263 |
Chardonnay | 20.2 | 39.8 | 0.001 |
Pinot noir | 29.9 | na | na |
5C | 31.2 | 41.0 | 0.044 |
420A Mgt | 39.8 | 32.3 | 0.053 |
101-14 Mgt | 34.2 | 48.2 | 0.105 |
Riparia Gloire | 35.9 | 47.5 | 0.021 |
SO4 | 36.5 | 51.1 | 0.004 |
5BB Kober | 39.9 | 46.4 | 0.023 |
All | 28.5 | 37.8 | 0.001 |
Trial 2 | |||
420A Mgt | 3.9 | 2.9 | 0.529 |
99R | 8.4 | 11.2 | 0.046 |
101-14 Mgt | 8.7 | 12.2 | 0.001 |
5BB Kober | 6.3 | 6.6 | 0.862 |
Pinot noir | 5.1 | 6.7 | 0.434 |
Gravesac | 7.8 | 11.3 | 0.415 |
Chardonnay | 8.1 | 9.3 | 0.508 |
110R | 8.5 | 13.8 | 0.131 |
8B Teleki | 14.0 | 15.1 | 0.626 |
Schwarzmann | 16.1 | 25.3 | 0.016 |
3309C | 16.5 | 19.5 | 0.494 |
1103P | 22.3 | 27.2 | 0.202 |
140Ru | 22.8 | 24.8 | 0.529 |
All | 11.0 | 14.2 | 0.369 |