To breed improved biomass cultivars of Miscanthus ×giganteus, it will be necessary to select the highest-yielding and best-adapted genotypes of its parental species, Miscanthus sinensis and Miscanthus sacchariflorus. We phenotyped a diverse clonally propagated panel of 569 M. sinensis and nine natural diploid M. ×giganteus at one subtropical (Zhuji, China) and five temperate locations (Sapporo, Japan; Leamington, Ontario, Canada; Fort Collins, CO; Urbana, IL; and Chuncheon, Korea) for dry biomass yield and 14 yield-component traits, in trials grown for 3 years. Notably, dry biomass yield of four Miscanthus accessions exceeded 80 Mg/ha in Zhuji, China, approaching the highest observed for any land plant. Additionally, six M. sinensis in Sapporo, Japan and one in Leamington, Canada also yielded more than the triploid M. ×giganteus ‘1993-1780’ control, with values exceeding 20 Mg/ha. Diploid M. ×giganteus was the best-yielding group at the northern sites. Genotype-by-environment interactions were modest among the five northern trial sites but large between Zhuji, and the northern sites. M. sinensis accessions typically yielded best at trial sites with latitudes similar to collection sites, although broad adaptation was observed for accessions from southern Japan. Genotypic heritabilities for third year yields ranged from 0.71 to 0.88 within locations. Compressed circumference was the best predictor of yield. These results establish a baseline of data for initiating selection to improve biomass yield of M. sinensis and M. ×giganteus in a diverse set of relevant geographies.
- Miscanthus sinensis
- Miscanthus ×giganteus
- biomass yield
- genotype-by-environment effects
- multi-location field trials
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Agronomy and Crop Science
- Waste Management and Disposal
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Miscanthus sinensis multi-location trial: phenotypic analysis, genome-wide association, and genomic prediction
Clark, L. V. (Creator), Dwiyanti, M. S. (Creator), Anzoua, K. G. (Creator), Brummer, J. E. (Creator), Ghimire, B. K. (Creator), Głowacka, K. (Creator), Hall, M. (Creator), Heo, K. (Creator), Jin, X. (Creator), Lipka, A. E. (Creator), Peng, J. (Creator), Yamada, T. (Creator), Yoo, J. H. (Creator), Yu, C. Y. (Creator), Zhao, H. (Creator), Long, S. P. (Creator) & Sacks, E. J. (Creator), University of Illinois at Urbana-Champaign, Mar 25 2019