Selection of new high yield potential bread wheat lines resistant to Hessian fly, Mayetiola destructor (Say), in Morocco
Wheat (Triticum sp.) is the main staple food of the Moroccan population. However, the crop is attacked by several pests and diseases. Hessian fly is the most serious pest, causing an average yield loss of 30% yearly. In order to select germplasm that combines both Hessian fly resistance and a high yield potential, an ICARDA bread wheat nursery, HF_SPWYT_MOR_ON of 160 lines, was evaluated for resistance to Hessian fly and for yield potential under greenhouse and in four Moroccan environments: Chaouia, Abda, Doukkala and Tadla, represented by the experimental domains of Sidi El Aidi, Jemaa Shaim, Khemis Zemamra and Deroua. Analysis of variance showed highly significant effects (P<0.0001) ofsite, genotype and their interactions (sitex genotype). The evaluation under greenhouse conditions showed that 87.5% of the nursery was resistant, 9.4% heterogeneous and 3.1% was susceptible. Most of the lines were resistant in the field. These lines are derived from resistant parents, and express antibiosisas a mechanismof resistance. The best grain yields were obtained in the experimental domain of Deroua, 23.7 to 86 q/ha, which is much higher than the national average (18 qls/ha).The lowest were obtained in Khemis Zemamra, 7.7 to 41.3qls / ha.
- ICARDA 
Showing items related by title, author, creator and subject.
Author: Tadesse, WuletawDate: 2015-10-30Type: BriefStatus: Open accessWheat is an important food crop globally is facing serious threats from impacts of climate change, such as rising temperatures, recurring droughts and floods, and emergence of new pests and diseases like stripe rust, yellow ...
Title: Agronomic Performance of Salinity and Frost Tolerant Winter Wheat Genotypes in Central Asia Author: Sharma, RamDate: 2015-09-21Type: PosterStatus: Open accessThis research report shows progress made in identifying salinity tolerant winter wheat varieties in Aral Sea Region of Central Asia
Author: Landis, Douglas A.Date: 2016-07-12Type: Journal ArticleStatus: Open accessWheat is an important food security crop in central Asia but frequently suffers severe damage and yield losses from insect pests, pathogens, and weeds. With funding from the United States Agency for International Development, ...