Identification of new sources of Hessian fly resistance in tetraploid wheat

Hessian fly (HF) (Mayetiola destructor Say) is an obligate destructive pest of wheat (Triticum aestivum L.) causing severe economic losses worldwide. Deployment resistant cultivars harboring HF resistance (H) genes still the most effective and economical method to manage this insect pest. However, extensive use H can impose selection pressure on populations, leading development virulent biotypes that breakdown plant resistance. Further, increase in environmental temperatures 25–30°C during wheat-growing season also negatively impact resistance, thereby necessitating identification new novel sources evaluate them for temperature sensitivity. In current study, we evaluated phenotypic response 254 Triticum turgidum (L.) accessions African origin Biotype L infestation. Of these, 10 exhibited >70% These showed when screened with vH13 biotype. Additionally, these lines were expression at a higher 30°C, three tetraploid maintained 100% increased identified. newly identified offer valuable tools breeders farmers be used breeding programs develop durable efficient crop management.