期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 27, 期 1, 页码 65-68出版社
ELSEVIER
DOI: 10.1016/j.indcrop.2007.07.013
关键词
Miscanthus; biomass; yield; morphological traits; regression analysis; correlation analysis; canonical variables
Miscanthus species are highly productive with low inputs and are excellent candidates for bioenergy feedstock production. A field experiment was conducted to characterize phenotypic differences in selected clones generated from interspecific hybrids of Miscanthus sinensis x Miscanthus sacchariflorus and intraspecific hybrids within M. sinensis. The field experiment was planted in plots of 20 m(2) at a density of 1 plant m(-2) in three randomized blocks. The trial was monitored for 3 years for traits important to biomass production including plant height, tiller density, tuft diameter and shoot diameter. ANOVA showed significant genotypic variation in these traits once the stand was 2 years old. This study shows that tillering and tuft diameter in years 1 and 2 are the most important traits influencing biomass yield, but over 3 years when the highest yielding potential is reached, tillering and tuft diameter have the highest correlation with biomass yield. These results identifying high-yielding Miscanthus clones will be utilized in our plant improvement program. (c) 2007 Published by Elsevier B.V.
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