Table 1.
Measures of the Striga germination stimulant activity of sorghum lines and hybrids used for genetic mapping of LGS1
| Sorghum line or hybrid | S. asiatica (Derashe, Ethiopia) | S. asiatica (North Carolina) | S. hermonthica (Samanko, Mali) | S. hermonthica (Sinnar, Sudan) |
| Shanqui Red | 15.5 ± 5.0 | 19.8 ± 3.0 | 19.6 ± 5.2 | 21.2 ± 3.6 |
| SRN39 | 0 ± 0 | 1.9 ± 1.8 | 0.1 ± 0.2 | 0.1 ± 0.2 |
| 555 | 0 ± 0 | 0.5 ± 0.5 | 1.3 ± 2.2 | 0 ± 0 |
| IS7777 | 0 ± 0 | 0 ± 0 | 3.8 ± 1.7 | 2.1 ± 2.1 |
| Tetron | 1.2 ± 2.7 | 4.3 ± 1.5 | 1.4 ± 1.9 | 2.5 ± 3.9 |
| SC103 | 3.4 ± 2.7 | |||
| (SRN39 × Shanqui Red)F1 | 10.9 ± 2.3 | |||
| (SRN39 × 555)F1 | 0.2 ± 0.3 | |||
| (SRN39 × IS7777)F1 | 6.6 ± 2.8 | |||
| (SRN39 × Tetron)F1 | 7.1 ± 2.6 | |||
| (SRN39 × SC103)F1 | 3.1 ± 2.5 | |||
MGD (millimeters) as measured in the agar gel assay (discussed in the text); MGD >10 mm indicates high Striga germination stimulant activity; MGD <10 mm indicates low Striga germination stimulant activity. Values are means of measures from three plates ± one SD.