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The performance of growth and yield of ten varieties
of soybean (Glycine max L meril) in two
locations of rainforest zones of Delta State
Okonmah L. U
Department of Agronomy, Faculty of Agriculture,
Delta State University, Asaba Campus, Delta State,
Nigeria.
E-mail:
omagbogidi@yahoo.com
Accepted 20 March, 2012
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Field experiments were
conducted in two locations of rainforest zones (Asaba
and Okpe-Isoko) to evaluate the adaptation of ten
soybean varieties to this agro-ecological zone. The
varieties were TGX1904-6F, TGX1910-11F, TGX1910-15F,
TGX1910-10F, TGX1908-8F, TGX1905-2F, TGX1910-1F,
TGX1910-8F, TGX1910-6F AND TGX1905-5F. The
parameters collected include germination percentage,
plant height, number of leaves, leaf area, fresh
weight of plant, dry weight of plant, number of
flowers, number of pod per plant, number of seeds
per pod, and dry seed weight. The growth parameters
were determined at 4, 8, 12 and 16 weeks after
planting), while the yield data were determined at
harvest. The results showed significant differences
at (P<0.05) among the varieties for some parameters
assessed. TGX1910-8F, TGX1905-2F and TGX1904-6F had
the highest number of flowers (68.3), number of pods
(26.3) and first to attain maturity (106.6 days)
respectively. TGX1910-8F performed better in dry
weight of seeds per hectare (2.9t/ha), followed by
TGX1910-15F (2.8t/ha). Also, varieties TGX 1910-8F,
TGX1905-2F and TGX1904-6F had the highest mean
values when compared to other varieties for total
dry weight. It is therefore recommended that
TGX1910-8F and TGX1910-15F which had higher yields
be adopted for cultivation in this agro-ecological
zone.
Keywords:
Rainforest, Soybean, Germination, Growth, Harvest,
Seeds, Flowers, Leaves.
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