EFFECTS OF PLANT DENSITY. ROW SPACING AND SETT SIZE ON GROWTH, DEVELOPMENT, YIELD AND QUALITY OF GINGER (Zingiber Officinale Roscoe)
EFFECTS OF PLANT DENSITY. ROW SPACING AND SETT SIZE ON GROWTH, DEVELOPMENT, YIELD AND QUALITY OF GINGER (Zingiber Officinale Roscoe)
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Date
1992-11
Authors
SAMBO, BANAKE ELISHA
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Abstract
This study was conducted at the Institute for
Agricultural Research. Samaru, Zaria - Nigeria during
the .1989 wet season to investigate the effects of plant
density,row spacing and sett size on the growth,
development,, yield and quality of ginger (Zingiber
officinale Rose.) The variety of ginger used was "Tafin
Giwa" and the treatment comprised of three plant
populations (166,666; 333,333; and 500,000 plants/ha)|
three row spacings (10, 20 and 30cm); and three sett
sizes (7.5; 15.0 and 22.5gm). The design of the
experiment was a split plot with plant density and row
spacing combinations as the main plot treatments and
sett size as the sub-plot treatment. These were
replicated four times.
Results showed that generally the growth
characters studied and the rhizome yield increased with
increasing plant density. At final harvest, the rhizome
yield at 500,000 plants/ha was 63% more than that
obtained at 166,666 plants/ha.
The effect of row spacing on rhizome dry weight was not
consistent. Leaf area index (LAI) was significantly
higher at 30cm compared with the narrower row spacings
throughout the growth period. Consequently, the yield
obtained at 30cm row spacing was 39%. and 49%, higher than
the yield recorded at 20 and 10cm respective1/.
Sett size significantly affected plant height and
rhizome dry weight per plant. Higher growth rate were
recorded with the largest sett weight (22.5gm) compared
with the two smaller sett sizes- Final yield was not
significantly influenced by sett size.
The quality of ginger was characterised by the oil
and ash content in this study. Ginger planted at 333,333
plants/ha produced higher oil content (7.07%.) than those
planted at the lowest(166,666 plants/ha) and highest
(500,000 plants/ha) densities. Row spacing did not
affect the quality of ginger while sett size
significantly influenced the oil content. The highest
mean oil content (6.9%.) was obtained with the smallest
sett compared with the medium and largest sett weights.
This study indicated that growth, yield and quality
of ginger could be enhanced by planting at high
population (500,000 plants/ha) and wide row spacings
(30cm). Sett size had no effect on final yield and
qua1ity of ginger .
The row spacing X plant density and plant density X
sett size interactions were significant.
There? was a positive correlation between yield and
all yield contributing characters studied and a positive
and significant correlation between leaf area index
(LAI.) and final yield.
Description
A thesis submitted to the; post (graduate
school .Ahmadu Bello University,, in partial fulfilment
of the requirement for the degree of Master of Science
in Agronomy.
DEPARTMENT OF AGR0N0MY
FACULTY OF AGRICULTURE
AHMADU BELL0 UNIVERSITY
ZARIA NIGERIA,,
November, 1992
Keywords
PLANT DENSITY., ROW SPACING,, SETT SIZE,, DEVELOPMENT,, GINGER,, (Zingiber Officinale Roscoe)