Department of Nematology, CCS Haryana Agricultural University, Hisar (India)-125 004.
Influence of aqueous shoot extracts (stock 40% w/v) of two Chenopodium spp, C. album and C. murale, on the larval emergence from Heterodera avenae cysts was studied in vitro. An inhibition the emergence of larvae was obrerved in 100% concentration of the extract (stock) of both Chenopodium spp as compared to control (water alone). The effect decreased with dilution of the extract but increased with exposure time. The cysts exposed to S concentration did not resume hatching upon tranfer to water. At lower concentration too, resumption in hatching was significantly less compared to control. C. album was more effective than C. murale.
Chenopodium murale, C. album, aqueous shoot, cereal cyst nematode, juvenile emergence.
