Plant materials
Seeds of Sorghum bicolor were obtained from the USDA-ARS, Plant
Genetic Resources Conservation Unit, and Griffin, Georgia, USA
(https://www.ars-grin.gov/). SRN39 (PI656027) was used as the resistant
control while the Chinese landrace, Shanqui Red (PI 656025) as the
susceptible control. Seeds of Striga hermonthica were collected
from sorghum growing fields in Western Kenya, Alupe (0.45°, 34.13°)
during the long rain-growing season in 2017. Seeds were stored and
handled under an approved quarantined laboratory facility at Kenyatta
University (Nairobi, Kenya).