Weed vegetation analysis and documentation of weed species of western zone (KIA Farm) of Tamil Nadu

Vegetation analysis is used to determine weeds that have a high ability to grow to dominate in a living space. The dominant weed population can later be used as a consideration to make some decisions. This survey aimed to analyze the weed vegetation in North farm and South farm in Kumaraguru Institute of Agriculture and find the species that is dominant. Identification on plant species inside the farm is conducted directly based on the characteristic and morphology from every species found. Vegetation analysis is used to determine weeds that have a high ability to grow and dominate in a living space. The dominance generally determines whether weeds are important or not. The dominant weed population can later be used as a consideration to make some weed control decisions. From the survey, there are 24 species of weeds from 13 families identified which were consisting of 7 no of species belongs to Poaceae, 4 no of species belongs to Euphorbiaceae remaining are from other families. The dominant species in broadleaved weeds compromising of Trianthema portulacastrum followed by Phyllanthus niruri, Dactylactenium aegyptium in grasses and Cyperus iria in sedges. This survey, concluded that Trianthema portulacastrum is the species which have the highest important value index of 16.75. It means that this plant has the highest level of domination in the observation plots. Whereas Phyllanthus madraspetansis recorded the lowest important value index of 1.43.