Selecting Cold Tolerant Genotypes and Developing Growth Models for Perennial Grasses – How to Choose the Best Grasses for A Given Climate?

PhD defence, Friday 3 March 2017. Xiurong Jiao

2017.03.03 | Steffi Hjerrild Iversen

Xiurong Jiao

Foto: Måling af bladareal-indeks i felten.

During her studies, Xiurong Jiao researched the cold tolerance in miscanthus to find genotypes better adapted to the Danish climate. Several genotypes showed high photosynthetic capacity under cold conditions and increased their photosynthesis on the return to higher temperatures. Xiurong Jiao also compared the photosynthetic temperature response in C4 miscanthus with the response of the C3 festulolium grass, which is naturally adapted to cold. To better compare different species and genotypes she analyzed the growth patterns of festulolium and, in collaboration with the CAS-MPG Partner Institute for Computational Biology in Shanghai, developed a mechanistic model that can provide reliable predictions of perennial grass production under different climatic conditions.

The new research findings will help broadening the genetic diversity of miscanthus if more widespread production in cool climates is to take place and help to describe the production of festulolium and other grasses in different environments.

The PhD degree was completed at the department of Agroecology - Climate and Water Section, Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

Time: Friday 3 March 2017 at 10:00.
Place:  Auditorium, Aarhus University, Foulum, Blichers Allé 20, 8830 Tjele.
Title of dissertation: Measuring Cold Tolerance and Crop Data of Perennial Grasses for Improving Biomass Production and for Parameterization of Growth Models
Contact information:
 Xiurong Jiao, e-mail: Xiurong. jiao@agro.au.dk tel.: +45 71598739



Members of the assessment committee:

Professor John CliftonBrown, Institute of Biological, Environmental and Rural Sciences, University of Aberystwyth, Gogerddan, Aberystwyth UK
Professor Tao Sang, The Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing China
Associated Professor Lars Elsgaard (chair), Department of Agroecology, Aarhus University
Main supervisor:
Senior scientist Uffe Jørgensen,  Department of Agroecology , Aarhus University
Co-supervisor:
Professor Professor Mathias Neumann Andersen,  Department of Agroecology,  Aarhus University
Kirsten Kørup Sørensen, Department of Agroecology, Aarhus University
Language:
 The PhD dissertation will be defended in English

The defence is public.
The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.

PhD defence
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Revised 20.03.2017