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| ARPN Journal of Agricultural and Biological
Science
May 2017 | Vol. 12 No. 5 |
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Title: |
Study the effects of nano
titanium dioxide on non-enzymatic mechanisms of cumin |
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Author (s): |
Hamidreza Khanjanzadeh,
Tayebeh Morteza and Elham Morteza |
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Abstract: |
Nanotechnology could open up
new approaches in plant sciences and in agricultural
researchers. Therefore, the aim of this work was evaluation
the effects of nano titanium dioxide on non-enzymatic
mechanisms of cumin (Cuminum cyminum L.). This study was
conducted at the personal field at the Garmsar, Iran. For
field studies, a factorial experiment based on a completely
randomized block design with four replications was used.
Evaluated traits in this experiment were hydrogen peroxide,
cartenoids, flavonoids and anthocyanins. Treatments were
concentrations of titanium dioxide nanoparticle (0, 0.01%,
0.03% and 0.05%) and times of spraying of this nano particle
(vegetative and reproductive stages). Final results revealed
that all evaluated traits affected by concentrations of
nano-TiO2 but treatment of spraying times only affected
carotenoids' content of cumin. Results showed that the
highest content of hydrogen peroxide, was achieved by
control and the lowest amount of this trait was obtained by
concentration of 0.05% nano-TiO2 while the amounts of
carotenoids, flavonoids and anthocyanins traits increased by
increasing of concentration of this nanoparticle so that
control treatment, had the lowest amount of this trait. The
results showed that application of titanium dioxide
nanoparticle had positive effects on the reduction of
oxidative stress cumin plant. |
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Title: |
Nano-structured zinc
sulfideto enhance cucumissativus (cucumber) plant growth |
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Author (s): |
Nidá M. Salem, Luma S. Albanna
and Akl M. Awwad |
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Abstract: |
The development of green
synthesis route for the synthesis of nanomaterials using
plants extract have received attention in the recent times
as it is environment ecofriendly and economical method. Zinc
sulfide nanoparticles (ZnSNPs) have been synthesized using
Punicagranatum (Pomegranate) peelaqueous extract at ambient
temperature and in one single step. The synthesized zinc
sulfide nanoparticleswere investigated by X-ray diffraction
(XRD), Energy dispersive analysis of X-rays (EDS), Scanning
electron microscopy (SEM), UV-vis optical absorption and
Fourier transform infrared spectroscopy (FTIR). UV-vis
absorption studies revealed surface plasmon resonance (SPR)
peak around 308nm, confirming the presence of ZNS
nanoparticles. Particle size could be controlled by changing
the quantity of peel extract andzinc ion concentration.
Results of this study revealed that ZnSNPs have the
potential to enhance rootand development growth of cucumber
plant. |
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Title: |
Distribution of insects
according to the phenological stages of okra (Abelmoschusesculentus)
and phytosanitary practices in anna (Bingerville, Côte
D’ivoire) |
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Author (s): |
Claudine AkouaMiezan N’guettia,
Mauricette San-Whouly Ouali-N’goran, Sorho Fatogoman and
Kone Daouda |
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Abstract: |
Insect distribution on okra
cultivation was studied according to phenological stages.
The study was conducted from July to December 2015 in Anna,
a village located at 4 km from Bingerville. The study aims
at making an inventory of the insects that colonize okra
cultivation, the damage caused and the practices for
controlling these pests. Insect collection was carried out
by hand pick-up, using colored traps or sweep nets. In total
9 orders of insects divided into 38 families including 15
families of pests were counted. The flowering-fruiting stage
was the most attacked. Damage was observed on all organs of
the plant. They were expressed by perforations and yellowing
of leaves, falling flowers and immature fruits. Podagricasp
was the major pest of the crop with 54.57% of the population
followed by Dysdercussp 25% and Nisotrasp 22.64%. Some
useful insect species were identified. For the control of
insect pests, producers use Ocimumgratissimum L. (Lamiaceae)
for its insect repellent properties. Two chemical pesticides
approved for vegetable crops were reported (K-optimal,
cypercal 50) but doses and frequencies were not respected,
no protection measures were used. |
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Title: |
Utilitarian aspects of
weeds and their ecological characteristics in ochawala
valley, district Charsadda, Pakistan |
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Author (s): |
Muhammad Numan Khan, Fazal
Hadi, Abdul Razzaq and Syed Mukarram Shah |
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Abstract: |
Weeds are generally considered
as unwanted and useless plants grow in the cultivated
fields. The present study was aimed to enlist the weed flora
of wheat fields of Ochawala valley and also to highlight
that how these useless plants can be utilized. Field visits
were arranged in different seasons for collection of the
weeds. These plants were identified and their possible uses
in the valley were documented. 35 weeds belonging to 33
genera and 18 families were collected. Out of which 6 genera
and 7 species were monocots and 27 genera and 28 species
were dicots. Poaceae was leading family (6 genera, 7
species) followed by Asteraceae (5 genera, 5 species),
Fabaceae (3 genera, 4 species) and Brassicaceae (3 genera, 3
species). The remaining families had 2 or less genera and
species. Therophyte was major life class with 31 species and
hemicryptophyte and geophyte were represented by 2 species
each. Leaf size classes showed nanophylls as dominant (15
species) group followed by microphylls (11 species),
mesophylls (6 species), leptophylls (2 species) and
macrophylls (one species). 33 species were deciduous and 2
were evergreen species. 20 species had compound leaves and
15 species were with simple leaves. The Phenological studies
revealed that 29 species were in reproductive stage and 6
species were in vegetative stage. These weeds were locally
used for different purposes i.e. 27 were fodder, 5 medicinal
and 3 vegetables. Weeds are unwanted, self growing and
injurious plants which share the utilization of land and
other resources such as nutrients, water, space and light.
Therefore, eradication of weeds can enhance resource
availability and crop productivity. In the present study it
was concluded that the weeds are not at all unwanted and
useless species but they can be utilized for various
purposes. |
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Title: |
Using the in situ
hybridization technique to exegetics the zebrafish
hematopoiesis |
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Author (s): |
Nibras Najm Abbood |
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Abstract: |
The zebrafish (Danio rerio)
has developed as an idyllic creature for the analysis of
hematopoiesis, the procedure by which every cellular
elements of the blood are generated. These major essentials
including erythrocytes, granulocytes, monocytes, lymphocytes
and thrombocytes are typically generated by complex genetic
signaling paths that are extremely preserved during
phylogeny. Three dissimilar mon mutant alleles each encode
premature stop codons, and enforced expression of wild-type
tif1? mRNA rescues embryonic hematopoiesis in homozygous mon
mutants. Amazingly, higher level of zygotic tif1? mRNA
expression explains ventral mesoderm during hematopoietic
stem cell and progenitor creation preceding to gata1
expression. Transplantation readings clearly reveal that
tif1? functions in a cell-autonomous manner throughout the
differentiation of erythroid precursors. Research works in
murine erythroid cell lines validate that Tif1? protein is
localized within original nuclear foci, and the expression
typically decreases during erythroid cell maturation. The
results or this research work establish a key role for this
transcriptional intermediary factor in the differentiation
of hematopoietic cells in case of vertebrates. In this
paper, using the In Situ hybridization technique to
exegetics the Zebrafish hematopoiesis has been clearly
analyzed and elucidated. |
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