Abstract:
Experiments were conducted
at the teaching and research farm of Faculty
of Agriculture, University of Ilorin, Nigeria
to determine the effect of aqueous extract of
Peperomia pelliucida and Terminalia
catappa on the management of cyst
nematode, Heterodera sacchari on some
selected rice varieties. A screenhouse
preliminary study was first carried out in
December, 2014 to assess the pathogenicity
of H. sacchari on ten varieties of rice from
which five varieties were selected for field
trials. The five selected rice varieties were
grown on soil inoculated with cysts of
H. sacchari. The field experiment was a 5x3
factorial type fitted into a randomized
complete block design (RCBD). Soil
nematode population, physiochemical soil
analysis and phytochemical screening of the
tests plants were carried out. Treatment
application of aqueous leaf extract were
conducted at the 2nd and 7th weeks after
transplanting. Data were collected on the
plant height, shoot, root weights, yield and
soil nematode population. All numerical
data were subjected to analysis of variance
(Anova) using GENSTAT statistical
package 12th edition and where significant
differences were observed, means were
separated using fisher’s protected LSD.
Results from the study revealed that
treatment combination of P. pellucida and
T. catappa singly with FARO 60, FARO 61,
and NERICA 8 performed significantly
higher (p>0.05) than the other rice varieties
for most of the growth and yield parameter
measured. Significant differences occurred
between shoot, root, and yield weight of
treated plants and their control counterparts.
There was no significant difference between
the two plant extracts used with respect to
parameters measured. Treated plants
performed significantly higher than the
control. Based on the results of the study,
paddy farmers experiencing H. sacchari
infestation are encouraged to treat the field
with P. pellucida and or T. catappa,
especially when planting FARO 60, FARO
61, and NERICA 8 as these combinations
promise to give higher yield.
