IMPACT OF LANTANA CAMARA L. ON HERBACEOUS SPECIES DIVERSITY AND SOIL CHARACTERISTICS IN BABILE DISTRICT, EASTERN ETHIOPIA

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Abstract:

This study assessed the impact of Lantana camara invasion on herbaceous species diversity and soil physio-chemical properties in Babile District, Eastern Ethiopia. To collect the vegetation data, 1mx1m plots were laid down in each 60 selected lantana individuals under and outside the cover in four directions. From each plot, a soil sample was taken from 0-15cm depth after removing litter from the soil surface for Soil physiochemical analysis. Three herbaceous species (Panicum coloratum, Chloris gayana, and Senna holosericea) that were highly affected by L.camara invasion in the study area were selected to examine the allelopathic impact. The germination test was carried out in sterile Petri dishes by treating the selected seeds with 10%, 25%, 50%, and 75 % concentration of L.camara aqueous extracts compared to the control group only with distilled water. Germination percentage, radicle and plumule elongation of receptor species were measured in the laboratory. There was a significant difference in species richness, diversity, and evenness of herbaceous species (P

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IMPACT OF LANTANA CAMARA L. ON HERBACEOUS SPECIES DIVERSITY AND SOIL CHARACTERISTICS IN BABILE DISTRICT, EASTERN ETHIOPIA

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