1a. Objectives (from AD-416):
Primary objectives of this research are the development, evaluation, and release of improved winter and spring malt and specialty barley cultivars.. Included in these cultivars are 1) two and six-rowed spring and winter malt barleys, 2) two-rowed spring high beta-glucan (BG) and low phytate (LP) barley types, 3) two and six-rowed winter feed barley types and 4) two-rowed winter high beta-glucan and LP barleys. In addition, when applicable, improved germplasm will also be developed and released.
1b. Approach (from AD-416):
Utilizing existing testing locations and off-season winter nurseries for the F2 and F4 generations, populations will be advanced to the F5 generation in bulk and F5:6 lines derived for yield evaluation. Lines will be derived from plants as opposed to spikes, and will therefore begin yield evaluation directly following derivation. The necessity to pull individual plants is the reason for the large majority of salary documented in this form. Approximately 450 crosses covering all market classes in both winter and spring backgrounds will be made each spring and spring populations advanced as previously discussed. Winter populations will be advanced in bulk under field conditions, except for specific populations which may be advanced in the greenhouse. Quality evaluations for LP will begin in the F3 stage and seed from spikes which are fixed for the LP trait will be bulked and advanced. Evaluations for BG will begin in the F5 generation and plants which show sufficient levels of BG will be advanced to F5:6 yield plots. Quality evaluation for malt quality will begin with the advanced yield trials, following at least two years of prior yield evaluation.
3. Progress Report:
Progress was made on the objective, which fall under National Program 301, Component 3: Genetic Improvement of Crops. Progress on this project focuses on problem of assessment of barley cultivar development. The barley breeding program at Aberdeen conducted breeding experiments on University of Idaho experimental farms. Both winter and spring habit barleys were planted on a total of 25.5 acres at the Aberdeen and Tetonia locations. A total 4149 spring and 1740 winter plots were planted. All plots grew normally and will be evaluated, selected, and harvested. The primary results obtained were: 1) Two winter lines, 93Ab669 (6-row) and 02Ab1604 (2-row) were advanced to the Western Malting Barley Trial for the first year; 2) 2Ab04-X010084-27 (2-rowed spring malting barley) was approved for a 3rd year of AMBA pilot-scale evaluation; 3) 02AB17271 is propagated for seed for the AMBA Plant Scale testing in 2012; 4) Three winter lines of 02Ab431, 02Ab669, and 02Ab671 were in the 2nd year of AMBA pilot scale tests. Results support Objective 3 in the parent project plan, development of improved barley lines. This is the final report for the project. During the life of the project, a total of 4149 spring and 1740 winter barley plots were planted. Two winter malting lines were advanced into the winter malting barley trial. Three winter malting barley lines from this work are now in the 2nd year of pilot scale test in AMBA. One spring malting line from this project was approved for the 3rd year of pilot scale testing and another spring malting line has begun plant scale test in cooperation with the American Malting Barley Association. In summary, this project generated valuable new malting barley lines that 1)will be used by plant breeders in their efforts to produce new cultivars and 2) may be released as new cultivars for growers of malt barley.