Enhancing the genetic diversity and adaptability of four broadleaf tree species in Ireland for sustainable forest diversification in the face of climate change.
Background
Ireland’s forestry sector is increasingly integrating a wider range of broadleaf species to support productivity and resilience in the context of climate change. Adap4Tree is assessing genetic diversity, adaptation, and resilience of four important broadleaf species in Ireland: downy birch (Betula pubescens), silver birch (Betula pendula), common alder (Alnus glutinosa), and beech (Fagus sylvatica).
Aim and objectives of the project
Adap4Tree aims to support long-term forest diversification by improving understanding of adaptive traits and identifying material suited to future conditions. The project will:
- Evaluate phenological, phenotypic and physiological traits in downy birch and alder progeny trials, including budburst, height, and chlorophyll content, to understand responses to climate variation.
- Establish and assess multi-site progeny trials for downy birch, silver birch, and alder to identify individuals showing strong growth, development, and stress tolerance across environments.
- Investigate beech genetic resources to inform genetic conservation and future breeding programmes for long-term adaptability.
The project will identify patterns in phenological, physiological and growth traits that distinguish better-performing individuals across environments. These findings will inform the identification of candidate parents and ideotypes suited to future climatic conditions, providing an evidence base for longer-term breeding and planting decisions.
Funding
The Adap4Tree project is funded by Teagasc under the Walsh Scholarship Programme for four years.
Further information
Dr Dheeraj Rathore, Tree Improvement Researcher
Robert Pim, Walsh Scholar working on Adap4tree