Prosiectau fesul blwyddyn
Crynodeb
Miscanthus sinensis, M. sacchariflorus and their hybrids have been identified as leading candidates for the provision of bioenergy production across several continents. Flowering time is an important trait affecting biomass yield as well as certain quality attributes, such as moisture content at harvest. The aim of this study was to ascertain the level of diversity available to breeders and potential for hybridisation of different accessions in a large collection of Miscanthus.We also sought to determine trends in flowering time within and between species with respect to environment and origin of collection data (where known), whether flowering order was maintained across years, and the extent of uniformity of flowering in different genotypes. Flowering time was observed weekly in 244 genotypes of two Miscanthus species (M. sinensis, M. sacchariflorus) and inter-specific hybrids including M. x giganteus over 3 years and using 4 clonal replicates of each genotype on a trial planted near Aberystwyth (Wales, UK). Differences in flowering time across the entire collection ranged from 160 to 334 days (June to November) and photoperiods between 7.8 and 16.6 h, with associated accumulated temperatures of 161 to 865oCd. More than two thirds of the collection flowered by the end of each growing season. M. sinensis individuals were the earliest genotypes to flower and showed the greatest diversity with respect to the onset of flowering. Flowering times in genotypes of known origin in Asia could be partially explained by growing season rain fall, degree days and mean temperature. Uniform flowering was identified in some genotypes. This will be important for the development of genetically diverse seed-based crops. Rank order of flowering was shown to be consistent across Western Europe, thereby justifying single site trials as the basis of germplasm characterisation for wider geographical deployment.
Iaith wreiddiol | Saesneg |
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Tudalennau (o-i) | 387-400 |
Nifer y tudalennau | 14 |
Cyfnodolyn | GCB Bioenergy |
Cyfrol | 3 |
Rhif cyhoeddi | 5 |
Dyddiad ar-lein cynnar | 01 Maw 2011 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - 06 Medi 2011 |
Ôl bys
Gweld gwybodaeth am bynciau ymchwil 'Characterization of flowering time diversity in Miscanthus species'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.Prosiectau
- 3 Wedi Gorffen
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Optimising and sustaining biomass yield
Donnison, I. (Prif Ymchwilydd), Farrar, K. (Prif Ymchwilydd) & Slavov, G. (Prif Ymchwilydd)
01 Ebr 2012 → 31 Maw 2017
Prosiect: Ymchwil a ariannwyd yn allanol
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Optimising the development of the energy grass Miscanthus through manipulation of flowering time
Donnison, I. (Prif Ymchwilydd)
Biotechnology and Biological Sciences Research Council
24 Medi 2007 → 23 Medi 2011
Prosiect: Ymchwil a ariannwyd yn allanol
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BBSRC Fellowship Kerrie Farrar: Understanding and exploiting the diversity of form in Miscanthus
Farrar, K. (Prif Ymchwilydd)
Biotechnology and Biological Sciences Research Council
18 Meh 2007 → 30 Ebr 2013
Prosiect: Ymchwil a ariannwyd yn allanol