关键词: R/S分析, R/S分析

Abstract: According to self-made standard of “herb, tall, perennial, tufted, strong adaptability, tropical or (and) subtropical distribution”, by referring to the references and specimen, 64 kinds of cellulosic energy grasses were screened out. They belonged to 31 genera of 8 families. In their field investigation to the tropical and subtropical regions of our country, only 12 species had been observed with more than one thousand square meters of natural populations and plants height more than 1.5 m, which were Miscanthus sinensis, Miscanthus floridulus, Saccharum arundinaceum, Triarrhena lutarioriparia, Narenga porphyrocoma, Pennisetum purpureum, Saccharum spontaneum，Arundo donax, Phragmites communi, Sorghum nitidum, Eulaliopsis binata and Sorghum propinquum. All of them were introduced and cultivated. Among these 12 species, Narenga porphyrocoma, Saccharum spontaneum，Phragmites communi and Eulaliopsis binata grew not good, but the others grew very well, which can be used as further screening study object.