Inheritance of Resistance in Sorghum, Sorghum bieolor , to the Sorghum Midge, Contarinia sorghieola (Diptera: Cecidomyiidae)
- 1 December 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 13 (6) , 1531-1534
- https://doi.org/10.1093/ee/13.6.1531
Abstract
Sorghum, Sorghum bicolor (L.) Moench, resistance to the sorghum midge, Contarinia sorghicola (Coquillet), was evaluated at College Station, Tex., from 1980 to 1983 and at Stillwater, Okla., in 1983. Resistant entries SC0175, SC0423, MB-10, and SGIRL-MR-1 were crossed with susceptible entries Wheatland, OK94, and Caprock. The parents, F1 F2, F3, and backcross and populations were visually rated for damage after natural midge infestation. The ratings of segregating populations of plants suggested that resistance was controlled by recessive genes at two or more loci. In crosses, SGIRL-MR-1 behaved differently from the other three resistance sources, and Caprock gave a higher number of susceptible plants than the other two susceptible parents. It appears difficult to transfer genes for sorghum midge resistance into good agronomic B-lines by simple hybridization. The small glume character carried by some resistant entries appears to be a useful genetic marker.This publication has 1 reference indexed in Scilit:
- Stability of Sorghum Midge Resistance1Crop Science, 1979