WEED DIVERSITY IN NORTH-EAST PART OF BELGAVI DISTRICT, KARNATAKA (INDIA)

摘要

In present investigation, a total number of 116 weeds species under 90 genera belonging to 33 families were recorded and analyzed. Among 33 families, Asteraceae, Poaceae and Euphorbiaceae were found dominated with 20, 17 and 11 respectively. Among total number of species, some species like Parthenium hysterophorus, Cyperus rotundus, Euphorbia heterophylla, Ageratum conyzoides, Sonchus oleraceus, Amaranthus viridis, Tridax procumbens, Solatium nigrum and Dinebra retroflexawere found most successful regenerative species. Based on the phytosociological analysis, it is indicated that the study area comprises variety of weed species and it's important to understand the weed diversity within a field will be useful to observe the changes in cropland ecosystem.