| Erianthus arundinaceum (Retz) Jeswiet. is tall perennial grasses of the Erianthus Michx stalk, extends to a height of 4 meters and width of 2cm. They possese strong root, high capability of drought resistance and branching, and they grow well in hill incline, river bank, alongside the road and sand beaches, and can be found at 1500m above sea level, which enables them to be utilized as a proper incline's soil keeper. E. arundinaceum is widely found in tropical, sub-tropical and warm temperate zones in China and widely used as material of weaving, paper production and fuel throughout history due to its high content of cellulose within the stalk and leaves. E. arundinaceum is entrusted with unique value and potential in sugar cane breeding project, and related research is being taken in business worldwide, while the value of its probable being a fuel plant is currently not taken seriously. In making good use of this plant's biological character, it is recommended to plant E. arundinaceum in the large Physiological characteristics of development of the loquat fruits1 In the present study, the genetic diversity of E. arundinaceum collected from Minjiang River, Qingyijiang River and Tuojiang River of Sichuanod province of China were investigated using SRAP markers. The following results were obtained. (1)205 loci were identified with 18 oligonucleotide primers, out of which 153 loci were polymorphic (PPB=74.63%. (2) E. arundinaceum showed high genetic diversity:The percentage polymorphic loci (PPB%) was 74.63%, Nei's gene diversity (h) was 0.2278 and Shannon's information index (â… ) was 0.3454; (3) Gst showed that most of the genetic variability Gst=0.2129 resided among populations within individuals; (4)Cluster analysis showed that there was little correlation between Nei's genetic distance and geographic distance of the 12 E. arundinaceum populations. Based on the genetic information available for S. arundinaceum.some conservation strategies and exploitation suggestion were proposed.2 A study on variations of 11 morphologic features of E. arundinaceum showed that there were extensive variations in morphology. Among those features, Internode diameter showed the most significant variance. It's from 8.86 to 37.36 at a variance coefficient of 49.66%. Followed by boot leaf length and width of the second leaf from the inflorescence, variance coefficients were 45.10% and 44.20% respectively. There was a significant correlation among morphological features. The higther plant height have more in fertile tillers and inflorescence number. Clustering analysis showed that those accessions can be divided into 3 groups. Accessions from different regions with similar characteristics were put into same group.3 A study on evaluation of production performance of 20 E. arundinaceum showed that:E. arundinaceum turn green in mid-March, into ripe in early November. Growth period is long. Growth rate is fast. The yield and quality characterizes twenty accessions also significantly different, the fresh yield was 1.64-4.92kg/plant, with an average of 3.37 kg/plant, the hay yield was 0.34-0.94kg/plant, and with an average of 0.68 kg/plant. Cellulose and hemicellulose content was high, and lignin content was low. Claorific value was 19.32-16.66kJ/g, was very high.So E. arundinaceum was suitable for energy from chemical composition and Claorific value. The comprehensive evaluation of the production performance of E. arundinaceum was very fine. |
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