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Acta Prataculturae Sinica ›› 2015, Vol. 24 ›› Issue (12): 237-244.DOI: 10.11686/cyxb2015005

• Orignal Article • Previous Articles     Next Articles

Evaluation of the adaptability of bioenergy grasses in acidic red soil

HOU Wei1, XIAO Liang2, 3, YI Zi-Li1, *, QIN Jing-Ping1, YANG Sai1, ZHENG Cheng1, CHEN Zhi-Yong1   

  1. 1.College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China;
    2.Miscanthus Institute, Hunan Agricultural University, Changsha 410128, China;
    3.Biomass Alcohol Fuel in Hunan Engineering Laboratory, Hunan Agricultural University, Changsha 410128, China
  • Received:2015-01-05 Online:2015-12-20 Published:2015-12-20

Abstract: Seven grass species grown as bioenergy crops were compared using 20 traits including phenological period, winter survival rate, agronomic traits and chemical composition. The results showed that, with the exception of Pennisetum purpureum, all grasses could complete their growth period and grow well in acidic red soil. There were significant differences among the grasses for seven agronomic characters and five chemical composition traits. Miscanthus floridulus, M. lutarioriparia×sinensis and Panicum virgatum had higher dry matter yield than other species; 5385.24, 4846.09 and 4566.83 g respectively. Cellulose contents of Saccharum arundinaceu, Miscanthus×giganteus and M. lutarioriparia×sinensis were 46.13%, 45.38% and 45.16% respectively, significantly higher than other species. Principal component analysis of twelve quantitative traits revealed that the cumulative contribution rate of four principal component factors accounted for was 92.626% of variation. This indicated that M. lutarioriparia×sinensis was the most adaptable species followed by M. floridulus, P. purpureum, S. arundinaceum, P. virgatum, Miscanthus×giganteus and M. sacchariflora. The results of this study will provide a theoretical basis for the development and utilization of acidic red soil in southern China.