Uji Toksisitas Ekstrak Daun Ketepeng Cina (Cassia alata L.) pada Keong Mas (Pomacea canaliculata L.)
Abstract: This experimental
study aimed to analyze the toxicity of the Cassia alata L. leaves extract in
Pomacea canaliculata L with the concentration of the extract as independent
variable and the mortality of Pomacea as the
dependent one. There
were two steps
in this study:
introductory test and
main test. Both
of them were done
to examine LC50
(lethal concentrate) and
LT50 (lethal time)
using the number
of mortality and
its velocity during 48
hour observation. Based
on the introductory study,
we chose concentrate of
2,5 %; 3%; 3,5%; 4%; and 4;5% of the leaves extract
for the treatment groups. Control group were not given any extract. Every group
of treatment consisted of 50 Pomacea and each treatment was done 5 times so
that there were 1500 Pomacea used in this study. Probit analysis was used for
this study result. I then be sown that
Cassia alata L. leaves extract could cause mortality of Pomacea
canaliculata L which occured from 4 hour after the start of the study. The LC50
was 4,290% of leaves extract after 16 hours after the application with
regression slope Y = 2,456 + 4,561X, and
the LT50 was 29,834% with Y = 0,047 + 1,976X.
Penulis: St. Fatmah Hiola dan
Arsad Bahri
Kode Jurnal: jpbiologidd100193
