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Changes in weed species spectrum of perennial weeds on arable land, meadows and pastures
expansion perennial weeds
2015/3/3
Occurrence of selected perennial weeds has been monitored at control sites across the Czech Republic since 1989, and trends of their occurrence have been evaluated. The monitoring has been aimed mainl...
Grasshopper Species-Area Relationship on Ungrazed and Overgrazed Grasslands
Grashoppers species-area relationship grazing grassland
2009/9/23
The species richness and abundance of rangeland grasshoppers were investigated at 6 sites of un—
grazed and overgraz ed pastures in Inner Mongolia during the autumn of 1994．The ungrazed sites sup—
p...
Allelopathic potential of Spiraea species
Spiraea thunbergii Sieb Spiraea prunifolia Sieb cis-Cinnamic acid cis-Cinnamoyl glucosides
2009/3/11
Allelopathic potential of Spiraea species.
Outline of the Invasive Alien Species Act.
Differential response of five morningglory（Ipomoea）species to temperature on germination
morningglory germination temperature dormancy hard seed
2009/3/10
Differential response of five morningglory (Ipomoea) species to temperature on germination.