Vol. 19(10) October 2015
Influence of halopriming and hydropriming on seed
germination and growth characteristics of Zea mays L. cv. GSF-2 under salt stress
Jayesh Vaishnav and Meeta Jain
In order to investigate the effect of halopriming and
hydropriming on seed germination and growth characteristics in Zea mays L. cv. Ganga
Safed-2 genotype under salt stress, a study was conducted as factorial experiment
based on the completely randomized design with eight replications. Halopriming by
50, 100, 150, 200 and 300mM NaCl solution and hydropriming by 1/4th Hoagland solution
was carried out at five levels of salinity 50, 100, 150, 200 and 300mM NaCl. The
results showed that priming treatment under non saline condition is highly effective.
Germination, seed vigor index, seedling length, root length/shoot length ratio and
fresh weight were significantly improved in response to priming at all salinity
levels. Overall hydropriming treatment was comparatively superior than the halopriming.
Germination index was also enhanced by priming seeds with 1/4th Hoagland solution
suggesting that hydropriming is a simple low cost and environmentally friendly technique
for improving seed and seedling vigor of maize.
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A Study on Floral Sap of Butea monosperma as a Substitute
for Toxic Indicator in Acidimetric and Alkalimetry with reference to Green Chemistry
Gargh S.L., Gupta Poonam, Jain Pramod, Gotmare Sulekha and Summarwar Sudha
Indicators change the colour of solution with change
in pH by adding acid or alkali. The present work acid base titration has been performed
by using Natural indicator. The aqueous extract of Butea monosperma flower bracts
was used as a Natural indicator. A comparative study of Butea monosperma flower
bracts extract as a natural indicator, with synthetic indicator viz. Phenolphthalein,
Methyl orange and Phenol red was carried out to evaluate the accuracy of Butea monosperma
bract as an acid-base indicator. Butea monosperma commonly known as “Flame of the
forest” is belonging to family Fabaceae. The natural indicator is prepared from
the aqueous extract of Butea monosperma. Two acids (HCl, CH3COOH) and two bases
(NaOH, NH4OH) were selected for acid base titration. 1N, 0,1N and 0.5N strength
of these acids and bases were prepared. The equivalence points obtained by the floral
extract coincide with the equivalence points obtained by synthetic indicators. Therefore,
use of aqueous extract of flower as an indicator is more economical and having the
greater accuracy of results as that given by synthetic indicator.
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Identification and Quantification of Flavonoids from
Sphaeranthus Amaranthoides
Swarnalatha Y. and Jostna
Medicinal plants have been important part of the health
care system. Plants contain phytochemicals which are responsible for its physiological
and biological properties. These bioactive compounds protect the plants from pathogens,
pests and insects. These compounds have various health benefit properties like anti-oxidant,
hepatoprotective activity and anti-inflammatory etc. Amongst all the phytochemicals,
flavonoids have been known to possess high activity to treat the hepatotoxicity
and suggested to be used for the treatment of various diseases. In the present study,
the leaf extract of Sphaeranthus amaranthoides was qualitatively as well as quantitavely
estimated for the presence of total phenol and flavonoids content. Qualitatively
flavonoids were identified from the leaves extract using chloroform: ethyl acetate
by thin layer chromatography. The total phenol content was estimated by Folin-Ciocalteu
reagent and found to be 22.6mg/g. The flavonoid content was estimated by Aluminium
chloride colorimetric method and found to be 13.2mg/g.
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Synthesis and biological activities of some novel
imines
Sapale S.R. and Shetgiri N.P.
Imines having carbocyclic rings and heterocycles such
as benzothiazole, benzimidazole have been synthesized. The structure of the synthesized
compounds was confirmed by IR, NMR, CMR and Mass Spectroscopy. These compounds were
evaluated for their biological efficacy.
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Mannich amino methylation reactions using Chloromethyl
Methyl Ether
Rege C.M., Gadre J.N. and Bhalekar S.M.
Mannich bases are synthesized using chloromethylmethyl
ether instead of formaldehyde, paraformaldehyde, 1,3,5-trioxane or 1,3- dioxolane.The
structure of the compounds prepared has been confirmed by spectroscopic methods.
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Microwave assisted synthesis, structure and spectral
characterization of novel Schiff’s bases of Thiocarbonohydrazides under solvent
and catalyst free conditions
Nalawade R. A., Nalawade A. M., Londhe B. S. and Shejwal R.V.
Nowadays eco-friendly green synthetic methodologies are
in great demand. A series of new Schiff’s base derivative of thiocarbonohydrazide
were synthesized by condensation of thiocarbonohydrazide with different substituted
aromatic aldehydes and ketone under microwave irradiation without catalyst and under
solvent free condition as a green chemistry approach. Within few minutes, reaction
proceed selectively giving high yields of the products. The structures of these
products were confirmed by spectral analysis.
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Synthesis, characterization and theoretical studies
of an asymmetrical amine containing piperazine moiety and related Mn(II), Cd(II)
and Zn(II) macrocyclic Schiff base complexes
Majid Rezaeivala
Six new Mn(II), Cd(II) and Zn(II) macrocyclic Schiff
base complexes have been prepared via the Mn(II), Cd(II) and Zn(II) templated [1+1]
cyclocondensation of 2,6-diacetylpyridine or 2,6-diformylpyridine with an asymmetrical
linear amine, N,N'(2-aminoethyl) (4-aminobutyl) piperazine, containing piperazine
moiety. The complexes have been characterized by elemental analysis, IR and FAB-MS.
Computational studies of [ML1Cl]+ and [ML2Cl]+ type complex ions, where M is metal
ion, are done by using B3LYP method with LANL2DZ basis set and mix basis set which
is LANL2DZ for metal atom and 6-31G for rest atoms in complex ions. The protonation
constants of two asymmetrical amines have been determined potentially in 0.1 M KCl
at 25 °C.
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Biodegradation of diclofenac: A review
Cherik D. and Louhab K.
Diclofenac (DCF) is a pharmaceutical residue of therapeutic
class of non-steroidal anti-inflammatory. It is often detected in the wastewater
treatment plants (influent and effluent) and surface waters. This review focuses
on its biodegradation with activated sludge (CAS) or bioreactor membrane (MBR).
Microorganisms play a key role in this biodegradation. A lot of factors can affect
the efficiency of this biodegradation depending upon sludge retention time (SRT),
temperature, pH, redox conditions and sludge characteristics. The performance of
biodegradation is inspected using biological process technology by activated sludge
and membrane bioreactor.
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