THE CHARACTERISTIC RESEARCH OF AUTECOLOGY ECOLOGY OF PAMAKANI(EUPATORIUM ADENOPHORUM)
紫茎泽兰个体生物及生态学特性研究

The Eupatoriun adenophorum Spreng appeared in southern Yunnan in 1960's is the weeds of the wasteland. In order to control it's harm a series of basic researches from the seed ecology to repjoductive characters was carried out. The effective preventive measures were put forword. The paper is based on autecolo -gy. Some results are reported as follows.1. The tiny seeds disperse mainly in the topsoil lees than 0.5cm deep. The rate of seed-sprouting is about 50%. They germinate best in the damp soils on pH.5-6...