Abstract:
Dichanthium annulatum, a range grass, is a weed in the moist lowland and plains of Pakistan. Experiments revealed that shoot extracts, root exudates and soil under the grass cover contained growth and germination inhibitors. The aqueous extracts from shoot and soil taken from grassed areas inhibited the growth and germination of Pennisetum typhoideum, Setaria italica, Lactuca sativa and Brassica campestris. The extracts retarded the seedling water absorption and reduced the plant moisture contents. However, the extract toxicity depended upon the amount of material used, soaking duration and the susceptibility of the test species. Therefore, during weeding the litter of this grass should be removed from the fields due to its allelopathic affects.
Page(s):
194-197
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 22, Issue: 4, Year: 1979