|
The effects of some
cryptogamic extracts on the primary productivity of Vigna
unguiculata L. Walp
P. O. Fatoba* and O. Rebecca Akolo
Department of Plant Biology, University of Ilorin, Ilorin,
Kwara State, Nigeria.
*Corresponding author. E-mail:
pofatoba57@yahoo.com.
Accepted
13 May, 2010. |
|
The effects
of hot and cold aqueous extracts of Barbula lambarenensis,
Dryopteris flix-max; Nephrolepis davalloides, Phymatodes
scolopenta, Platycerium angolense and
Azadrachta indica and Karate 2.5EC (chemical) on
the primary productivity of cowpea were investigated. The
extracts of the plant materials and the chemical were
appropriately used to irrigate the cowpea twice a week
during flowering. The number of pods per plant, length of
pods, number of seeds per pod, number of seeds per plant,
filling potentials and the weight of seeds per plant were
determined for each of the 14 regimes. It was found that all
the treatments other than cold extracts of B.
lambarenensis, extracts of Dryopteris and
Nephrolepis showed better performance than the untreated
in the measured variables. Cowpea treated with hot aqueous
B. lambarenensis extracts, hot and cold extracts of
P. scolopenta, P. angolense and A. indica compared
favourably and even better than the one treated with Karate
2.5EC (Lambda –cyhalothrin), a universally used chemical.
This shows that these plants can serve as good materials or
alternatives to Karate and can therefore be integrated into
use for the production of cowpea.
Key
words:
Productivity, cryptogamic, Barbula lambarenensis
Nephrolepis davalloides, Vigna unguiculata, Dryopteris
flix-max.
|
