Evaluation of Sorghum Germplasm for Resistance to Insect Pests uri icon

abstract

  • Sorghum is one of the most impor tant cereal crops in the semi-arid tropics. Nearly 150 insectspecies have heen reported to damage this crop wor ldwide, causing an estimated loss of more thanUS$ 1,000 mi l l ion annually. Of these, sorghum shoot fly (Atherigona soccata), stem horers (Chilopartellus, Busseola fusca, and Diatraea spp), sorghum midge (Stenodiplosis sorghicola), and headbugs (Calocoris angustatus and Eurystylus oldi) are the major pests wor ldwide. Host-plantresistance is one of the most effective means of controlling insect pests in sorghum. ICRISAT holds36,700 accessions of the sorghum germplasm f rom all over the wor ld. Therefore, extensivescreening of the sorghum germplasm was undertaken, and several stable sources of resistance to thekey insect pests have been ident i f ied. This informat ion bul let in lists the reactions of the sorghumgermplasm accessions to the key pests. This list can be made use of whi le selecting lines wi thresistance to the target pests for use in sorghum improvement

publication date

  • 2003