Abstract
Elevating resistance levels to bacterial leaf streak (BLS), caused by Xanthomonas campestris pv. translucens (Jones, Johnson, & Reddy) and Fusarium head blight (FHB) caused by Fusarium graminearum Schwabe (telomorph Gibberella zeae (Schwein.) Petch) are major objectives of several hard red spring wheat (Triticum aestivum L.; HRSW) breeding programs situated in the northern Great Plains of the USA. High grain yield significantly contributes to the success of HRSW cultivars. Other traits, such as disease resistance, are most useful when accompanied by high grain yield in a single genotype. The genotype by yield-trait (GYT) analysis method aids in selecting genotypes with elevated performance levels for traits of consideration in the presence of high grain yield. Replicated yield trial data was subjected to GYT analysis to demonstrate its utility for selecting HRSW genotypes for use as parents and further consideration toward cultivar release. Genotype selections were identified based on overall performance while strong and weak characteristics were also investigated. Several genotypes were selected for potential use as parents while three were chosen for further cultivar release consideration. Performance levels associated with two of the three candidate cultivars were greater than average for all traits considered.
Highlights
Elevating resistance levels to bacterial leaf streak (BLS), caused by Xanthomonas campestris pv. translucens (Jones, Johnson, & Reddy) and Fusarium head blight (FHB) caused by Fusarium graminearum Schwabe (telomorph Gibberella zeae (Schwein.) Petch) are major objectives of several hard red spring wheat (Triticum aestivum L.; HRSW) breeding programs situated in the northern Great Plains of the USA
Data used for analysis consisted of agronomic performance as well as BLS and FHB screening nursery resistance observations collected on all genotypes included in the South Dakota State University (SDSU)-HRSW-advanced yield trial (AYT) during both 2017–2018 growing seasons
Means of each genotype included in the 2017–2018 AYT are presented in Table 1, several of which were composed of values collected at 17 environments, though heading date and plant height were only collected at 16 environments
Summary
Crop Breeding, Genetics and Genomics (telomorph Gibberella zeae (Schwein.) Petch) are major objectives of several hard red spring wheat (Triticum aestivum L.; HRSW) breeding programs situated in the northern Great Plains of the USA. Both diseases have been documented as occuring in the USA for at least 100 years [1,2], and various levels of economic damage to wheat crops have been documented [3,4]. These circumstances suggest that efforts by HRSW breeders to increase resistance levels for both diseases are a practical and economically sound means of disease management
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
