Patterns of resistance in sorghum to the sorghum midge

Widstrom , N.W. and Wiseman, B.R. and McMillian , W.W. (1984) Patterns of resistance in sorghum to the sorghum midge. Crop Science, 24 (4). pp. 791-793.

[img] PDF
Restricted to ICRISAT researchers only


The sources of resistance to midge, Contarinia sorghicola (Coquillett), in sorghum Sorghum bicolor (L.) Moench have a need to be characterized so that different types may be consolidated and/or integrated into an effective selection program. Two separate sets of sorghum parents, F2, F3, and selfed backcross generations, (F12PF1)S and (F1P2)S, were grown on a Tifton sandy (fine-loamy, siliceous, thermic Plinthic Paleudult) in five-replicate field experiments in 1971 and evaluated for resistance to sorghum midge. No simple inheritance pattern was evident, but the resistance of sorghum line SGIRL-MR-1 was determined to be inherited as primarily recessive. F2 progenies from nine crosses and their reciprocals were grown in replicated tests in two or more years during 1979-1981. Results revealed significant differences in resistance to the sorghum midge between progeny of reciprocal crosses. The resistance of the lines PI383856 and SGIRL-MR-1 seemed to be inherited differently. The resistance in PI383856 tended to diminish in crossbred progenies when the line was used as a female and resistance in all SGIRL-MR-1 crosses tended to be recessive. Therefore, PI383856 or SGIRL-MR-1 should have utility in breeding for resistance by alternate crossing or backcrossing and selfing during selection. Resistance in PI383856 and SGIRL-MR-1 should be combined into a common source that might be more stable and have a higher level of resistance to sorghum midge damage than either line alone

Item Type: Article
Author Affiliation: Southern Grain Insects Research Laboratory, USDA, ARS, Tifton, GA 31793, USA
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 11 May 2012 09:02
Last Modified: 11 May 2012 09:02
Official URL:

Actions (login required)

View Item View Item