Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Allelopathic effects of Celosia argentea and Euphorbia hirta leaf extracts on germination and seedling growth of mungbean (Vigna radiata), chickpea (Cicer arietinum) and sorghum (Sorghum bocolar).

Abstract

Celosia argentea and Euphorbia hirta are invasive weeds found in field crops growing in semi arid agro climatic zones of Maharashtra. They are fast growing during kharif and rabi season. An attempt was made in the present investigation to find out the allelopathic effects of both the weeds on germination and early seedling growth of crop plants in vitro. The test field crops selected were mungbean (Vigna radiata), chickpea (Cicer arietinum) and sorghum (Sorghum bocolar). Aqueous leaf extracts of these weeds in 1:1, 1:2, 1:3, 1:4, dilutions tested on seeds of the test plants in vitro for their effect on seed germination, seedling growth, fresh and dry weight. To have test the allelopadiic effect of both weeds on field crops. There were used different concentrations of aqueous leaf extracts of both the weeds like (1:1, 1:2, 1:3 and 1:4). The aqueous leaf extracts was tested against the seed germination and seedling growth of mungbean (Vigna radiata), chickpea (Cicer arietinum) and sorghum (Sorghum bocolar). Stimulation was observed at low concentrations (1:4%), but higher concentrations (1:1%) were most inhibitory to test crops. The higher concentrations of extracts were concentration co-related to both seed germination and seedling growth.