Studies on the biological characteristics and dynamics of energy production of Miscanthus floridulus

Abstract

Abstract: To obtain the greatest energy output of Miscanthus floridulus, the basic biological traits and biomass dynamics, including yearly dynamics of biomass and calorific value, the biomass characteristics and other indicators, were studied. M. floridulus grows slowly at the leaf-expansion stage and increasingly faster at the stem-elongation stage. The average growth rate was 2.12 cm per day at the ear sprouting stage and 2.52 cm per day at the flowering stage, after which, the growth rate decreased and then stopped. There was strong tillering ability with peaks in spring and autumn. The dark treatment was beneficial for seed germination. The annual average caloric value of different organs was: spike (18.27 kJ/g)＞stem (17.76 kJ/g)＞leaf (17.44 kJ/g). The annual average ash was in the order: leaf (7.03%)＞spike (3.44%)＞stem (2.55%). Although the biomass energy varied with the biomass change, the caloric value had little significant effect on it.

CLC Number:

CHEN Hui-juan, NING Zu-lin, ZHANG Zhuo-wen. Studies on the biological characteristics and dynamics of energy production of Miscanthus floridulus[J]. Acta Prataculturae Sinica, 2012, 21(6): 252-257.

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