Mvumi et al
Greener Journal of Agricultural Sciences Vol. 3 (1), pp.055-062, January 2013
ISSN: 2276-7770 © 2011 Greener Journals
Effect of Moringa Extract on Growth and Yield of Maize and Common Beans
1*Culver Mvumi, 2Fanuel Tagwira and 3Albert Zvenhamo Chiteka
Faculty of Agriculture and Natural Resources, Africa University, P. O. Box 1320, Mutare, Zimbabwe.
*Corresponding Author’s Email: culmvi @ yahoo.com
An evaluation on the potential benefit of using Moringa
oleifera leaf extract as a growth hormone on common beans (Phaseolus
vulgaris) and maize (Zea mays) was done. Trials were carried
out in the greenhouse and field. In the greenhouse, five
treatments were used: control (M0, only water applied),
second control (ME, only ethanol applied), moringa extract
(in 80% ethanol) applied (on leaves) once at 2 weeks from
emergence (M1), moringa extract applied at 2 and 4 weeks
from emergence (M2), and moringa extract applied every 2
weeks to maturity from two weeks from germination (M3). The
same treatments were adopted in the field except ME, which
was considered unnecessary after observing the results of
the greenhouse experiment. Results showed that moringa
extract increased growth and yield of beans in both
greenhouse and field, and of maize in the field. However,
the extract showed no significant effect on DM yield, root
DM or plant height of maize in the greenhouse. The highest
DM and root weight, height and crop yields in greenhouse and
field experiments for beans, and for maize in the field
only, were obtained at M3. The study recommends the
application of extract at M3.
Key words: Moringa oleifera leaf extract, growth hormone, maize, common beans.
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