The effects of different concentrations of
Senna alata
crude water extracts on the germination, growth and flowering of
Celosia argentea
were studied. All concentrations of this extract induced a consistent decrease in absolute percentage and rate of germination, and inhibited radical elongation in Celosia argentea. Earliness in flowering and overall increase in height was obtained from seedlings sprayed with 75 %C and 100 % C crude water extracts. @JASEM