2.5 Date analysis:
Germination force (GF),
germination percentage (GP) and germination index (GI) were calculated
according to the following equation (Wang, 2019):
GF (%) = Number of germinated seeds in first one-third of evaluation
days / Total number of Seeds ×100
GP (%) = (N1+ N2 + N3… + Nn-1+
Nn)/ Total number of Seeds ×100
GI = (N1)/1+
(N2)/2+(N3)/3+ … +
(Nn-1)/(n-1) + (Nn)/n
where, N1, N2, N3, . .
., Nn: the number of germinated seeds in the first,
second, and final count, and 1, 2, . . ., n was the first, second, and
final evaluation days.
The allelopathic effect response
index (RI) and comprehensive allelopathic effect response index (CE)
were calculated using the Equation suggested by Williamson (1988):
RIn =1 - Cn /Tn ( T≥C )
or Cn /Tn– 1( T<C )
CE=
(RI1+RI2+RI3+…+RIn)
/ n
where T is the treatment value and C is the corresponding value of
control. Positive values indicate stimulating effects, while negative
ones indicate inhibitory activity of the aqueous extracts.
Experimental data were subjected to one-way analysis of variance
(ANOVA). Statistical significant difference was assumed at the
probability level of 0.05 and means were separated by using LSD.