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- Title
Introgressing resilience and resource use efficiency traits from Scots Bere to Elite Barley Lines (REBEL).
- Authors
Cope, Jonathan; Norton, Gareth; George, Timothy; Newton, Adrian
- Abstract
With the increasing population it is important to increase the total yield of most crops, importantly the staple cereal crops. Whilst modern elite barley varieties are high yielding and responsive to high levels of agronomic inputs they have plateau in 'on farm yield', with little evidence of an overall increase in abiotic and biotic stress tolerance due to the low priority in breeding for increased stress, low input or marginal environments. A potential source of viable resilience and resource use efficiency traits are landraces local to areas of marginal land, such as the Scots Bere from the Highlands and Islands of Scotland. The Bere are a deeply historically rooted landrace of barley which has been grown on predominately marginal land for the last half millennia; allowing them to yield well un-der marginal conditions with impoverished soils. By introgressing them into elite cultivar backgrounds they may contribute biotic and abiotic stress-tolerance genes and nutritional genes that enable them to efficiently and resiliently yield under low input and stress-prone environments. The overall aim of the proposed project is to assess and genetically characterise these traits thereby improving low-input performance and yield stability in elite barley. Screening for biotic stress resistance to pathogens such as Rhynchosporium commune & Puccinia hordei, abiotic stress resistance to stresses such as Mn defeciency & salt toxicity, and a combination of one abiotic and one biotic stress to assess the interaction within the genotype.
- Subjects
BARLEY yields; ABIOTIC stress; RHYNCHOSPORIUM
- Publication
Cereal Research Communications, 2017, Vol 45, p74
- ISSN
0133-3720
- Publication type
Abstract
- DOI
10.1556/0806.45.2017.100