Table 1.
Evaluations of PI 437655 and seven indicator lines, for resistance to different HG types of soybean cyst nematode (SCN) conducted in a greenhouse of University of Missouri–Columbia, using the rating system described by Schmitt and Shannon (1992) and Niblack et al. (2009)
| Soybean lines | FI (%) of SCN HG type (SCN isolate) | ||||||
|---|---|---|---|---|---|---|---|
| 2.5.7 (PA1) | 1.2.5.7 (PA2) | 0 (PA3) | 2.5.7 (PA5) | 1.3.5.6.7 (PA14) | 1.2.3.4.5.6.7 (LY1) | 1.2.3.4.5.6.7 (LY2) | |
| PI 437655 | 28.6 (MR) | 26.2 (MR) | 4.4 (R) | 38.3 (MS) | 5.5 (R) | 56.8 (MS) | 23.8 (MR) |
| PI 88788 | 42.1 (MS) | 44.4 (MS) | 8.1 (R) | 59.0 (MS) | 8.4 (R) | 67.9 (S) | 37.1 (MS) |
| PI 548402 | 1.4 (R) | 62.0 (S) | 10.6 (MR) | 14.4 (MR) | 80.3 (S) | 89.0 (S) | 53.6 (MS) |
| PI 090763 | 9.2 (R) | 9.6 (R) | 1.8 (R) | 4.5 (R) | 43.9 (MS) | 84.3 (S) | 54.5 (MS) |
| PI 437654 | 1.9 (R) | 1.7 (R) | 1.4 (R) | 7.2 (R) | 9.5 (R) | 74.4 (S) | 47.6 (MS) |
| PI 209332 | 39.1 (MS) | 41.5 (MS) | 6.4 (R) | 49.8 (MS) | 21.7 (MR) | 61.2 (S) | 32.3 (MS) |
| PI 089772 | 3.2 (R) | 14.7 (MR) | 3.5 (R) | 10.0 (R) | 49.9 (MS) | 64.4 (S) | 83.5 (S) |
| PI 548316 | 69.6 (S) | 49.6 (MS) | 13.8 (MR) | 65.1 (S) | 30.0 (MR) | 94.5 (S) | 40.0 (MS) |
Female index (FI) (%) values are calculated from three replicates
R resistant, FI < 10; MR moderately resistant, 10 < FI < 30; MS moderately susceptible, 30 < FI < 60; S susceptible, FI > 60