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| ARPN Journal of Agricultural and Biological
Science
June 2014 | Vol. 9 No. 6 |
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Title: |
Lead
accumulation in different parts of okra plant (Abelmoschus
Esculentus) |
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Author (s): |
Nguyen
Xuan Hai, Nguyen Minh Hung, Nguyen Viet Hiep and Bui Ngoc
Dung |
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Abstract: |
This paper presents experimental result of
lead (Pb) affect on okra growth, yield and accumulation in
different parts of plant. Results show that Pb
concentrations in soil in the range of 16.13 ppm - 350 ppm
positively affect okra plant height, yield constituents and
yield. Concentration of Pb in roots leaves and fresh fruit
of okra plant was in proportion to the concentration of Pb
in soil. Lead was accumulated mainly in the roots of the
okra plant, then in leaves and fruits. Especially, the
concentrations of Pb in fresh okra fruits (eatable part)
were lower than allowable limits. The okra plants can be
used as multi-purpose trees for Gray Soil with Pb
concentrations below 210 ppm. |
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Title: |
Wastewater treatment that contaminated with lead |
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Author (s): |
Prayong
Keeratiurai |
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Abstract: |
This study was conducted to reduce the lead
content in wastewater of metal plating factory. Wastewater
contaminated with lead was filtered with carbon. Types of
wood carbon for filtration were tamarind wood carbon and
rubber wood carbon. The thickness of the carbon filter layer
was 30 centimeters. Wastewater pretreatment improved
wastewater with lime and leaved the reaction completely.
Then the wastewater was filtered by the slow filtering
process. Wastewater samples were collected every 1 hour to
analyze the concentration of lead before and after
filtration. The results of this study showed that the
wastewater filtration with tamarind and rubber wood carbon
reduced lead more than 99.75%. Wastewater through the
filtration would have 0.003 mg of lead per liter, which was
below the standard of industrial effluents defined 0.2 mg of
lead per liter. The filtration lifetime of tamarind wood
carbon and rubber wood carbon was 15 days and 4 hours, and 8
days and 9 hours, respectively. The result showed that the
tamarind wood carbon have a lifetime for filtration more
than the rubber wood carbon that was 6 days and 8 hours. The
tamarind wood carbon was most appropriate for used as a
filter. |
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Title: |
Heterotic
effects for grain yield and related traits in maize variety
azam |
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Author (s): |
Liaqat Shah, Hidayat Ur Rahman, Asif Ali,
Kashif Ali Shah and Aaqil Khan |
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Abstract: |
This research was conducted at Khyber
Pakhtunkhwa (KP) Agricultural University Peshawar, Pakistan,
during 2010 (spring and summer seasons). The experimental
material comprised 64 entries (40 F1 genotypes,
20 S2 lines, 2 testers, and 2 checks) which were
sown in partially balanced lattice square design with two
replications. Data were recorded on cob length, kernel rows
cob-1, 100 kernel weight and grain yield. Highly
significant differences were observed among the testcrosses
for most of the traits. Maximum mid parent and better
heterosis for 100 grain weight was detected for TC- 45-4-1
and TC- 45-4-3-3 where Kiramat and Jalal were the testers,
respectively. Positive heterosis over mid parent, better
parent and positive standard heterosis over two commercial
checks of grain yield were found for most of the
testcrosses. These lines were having promising performance
which could be used in future maize breeding programs
to exploit
hybrid vigour. |
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Title: |
A study
of banana production in Bangladesh: Area, yield and major
constraints |
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Author (s): |
M.F. Hossain |
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Abstract: |
In Bangladesh, the total banana cultivated
area in the year 2006-07 was 145280 acres (58818 ha) and it
was decreased to 130589 acres (52870 ha) in the year
2010-2011. Total production was decreased 1004520 tons to
800840 tons due to decreasing cultivated area. Yield was
decreased during those days from 6.9 t acre-1 (17
tha-1) to 6.13 t acre-1 (15.1 tha-1).
The highest banana cultivated area was observed in Tangail
region considering 23 regions from 2006-07 to 2010-2011.
Total banana production area of Tangail region gradually
decreased from 26260 acres to 16863 acres. Yield of banana
in Tangail region was 8.05 t acre-1 (19.9 tha-1)
in 2010-2011. The minimum cultivated area of banana in
2010-2011 was obtained under Pabna region. Considering the
year round availability, nutritional value, uses, prices,
popularity and production, banana is considered the number
one fruit in Bangladesh. Biological constraints such as
insect-pest-diseases are also cause serious damage and yield
loss of banana in Bangladesh. |
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Title: |
Resistance of conocarpus lancifolius engl to different
levels of salinity and water supply |
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Author (s): |
Basim A.
Abd Ali |
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Abstract: |
While the current tendency in Iraq is to
utilize the ground water in irrigation of shelterbelts and
plantations of Conocarpus lancifolius, this research
has conducted to explore the limits of salinity and water
deficiency under which C.lancifolius can survive and
develop good biomass. Four levels of salt and three levels
of water supply were applied on six - month seedlings for
the period of 210 days. They were grown under climatic
conditions of Baghdad city. Results showed that the adverse
effect of water deficit on shoot length and number of
branches increased with time, especially at hot months. End
growth parameters showed that water deficiency affected more
than salinity. All seedlings survived even under 12000 ppm
concentration of salinity. Slight reduction in growth has
obtained when irrigation was once each two days, but it was
much more when the interval elongated to 3 days. The
increase in salt concentration had no significant effects on
dimensional properties, while weight parameters showed
regular adverse relation to percent of salt in irrigation
water. |
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Title: |
Trace
elements and major minerals evaluation of earthworm casts
from a selected site in southwestern Nigeria |
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Author (s): |
Ayoola P.B.
and Olayiwola A.O. |
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Abstract: |
Samples of
dry earthworm casts lying on the soil surface were collected
within the Ladoke Akintola University of Technology Ogbomoso
campus randomly and were analyzed for the presence of trace
elements using Atomic Absorption Spectrophotometer. While
flame photometer was used for major minerals analysis. The
results showed that trace elements concentrations in
earthworm casts were as follow: Fe, 1400 ± 0.01mg/kg, Mn,
79.00 ± 0.03mg/kg, Zn, 65.00 ± 0.01 Cu, 8.50 ± 0.02, The
mineral composition results showed that the earthworm casts
contained K, 72500 ± 0.03mg/kg, P, 3450.00 ± 0.04mg/kg, Ca,
581.00 ± 0.02mg/kg, Mg, 45.50 ± 0.01mg/kg. When compared the
results obtained from this research work with the results
previously reported for some medicinal plants it shows that
earthworm casts has the potentiality of being used as
medicament in traditional medicine, the high contents of
iron, zinc and manganese could make the earthworm cast a
good antianaemic and antidiabetic agents. |
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