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Sudan Journal of Agricultural Research

Resistance of some sorghum varieties to sorghum midge, Contarinia sorghicola Coquillet (Cecidomyidae: Diptera), damade under Sudan rainfed conditions

Suliman, E. H,  Hassan, Y. E,  Mohamed, M. H,  Sulman, H. A,  Hassan, M. K, Ali,  A. E,  Elasha, E. A,  and Sharma, H.C.

Abstract

The experiments were conducted during 2004/05, 2005/06 and 2006/ 07 in the laboratory and field to evaluate resistance of six varieties (ICSV 88032, ICSV 804, TAM 2566, DJ 6514s, SPMD 94001B and SPMD 94006B) and two susceptible land races (Korakolo and Daber baladi) to the infestation of sorghum midge. Data were recorded on the numbers of eggs, larvae, emerged adults, grain damage, panicle type, glumes length, midge density and yield under field and laboratory conditions. Adults emerged on resistant varieties were significantly lower compared to susceptible land races. Midge density was higher on susceptible land races than resistant varieties. However, the variety ICSV 88032 recorded lower midge density and varieties ICSV 88032 and DJ 6514 showed good performance throughout the three seasons. All resistant varieties produced high yield compared with susceptible land races and the variety SPMD 94001B was the highest in yield. We recommend the following for use as sources of resistance and for future developmental resistant varieties out of them to the sorghum midge under Sudan rainfed conditions. ISCV 88032, ISCV 804, TAM 2566, DJ 6514, SPMD 94001B and SPMD 94006B.

Sudan Journal of Agricultural Research Vol. 14 (2009) PP. 61-68