[Objective] The aim was to analyze biomass accumulation, degradation and saccharification characteristics of Triarrhena lutarioriparia. [Method] With Triarrhena lutarioriparia as materials, samples were collected from April 2012 to November 2012 to explore monthly biomass changes and degradation and saccharification of Triarrhena lutarioriparia. [Result] Plant height was improving upon time; holocellulose and cellulose contents were increasing with dry weight of shoot system increasing and achieved the peak at 78.1% and 40% in September. It can be concluded that NaOH pre-treatment efficiency is better, when Triarrhena lutarionparia was treated with 2% NaOH at 100 ℃ for 20 min and reducing sugar yield achieved 178,42 mg/g. [Conclusion] Triarrhena lutarioriparia can be materials for ethyl alcohol production and the optimal harvest time is from middle September to middle October.
In this study,11 cultivars of cassava（Manihot esculenta Crantz） were taken as materials to determine the starch contents and the ability to produce ethanol with uncooked and cooked materials.The results showed that the starch content differed among different cultivars.Among the 11 cultivars,SC9 had the highest starch content（82.33%）.The ethanol yield of cooked material was significantly higher than that of uncooked material.Moreover,there was a significant difference in ethanol yield among different cultivars.For the uncooked materials,H680 produced the most ethanol yield（9.7%）;while for the cooked materials,H609 produced the most ethanol yield（13.8%）.
