Past Issue

Studies on the qualitative changes in the amino acid, sugar and organic acid contents of tomato fruit during pathogenesis by alternaria solani

Qualitative changes in the amino acid, sugar and organic acid contents of the tomato fruit during pathogenesis causaed by Alternaria solani were investigated chromatographically. Marked differences in the amino acid, sugar and organic acid contents of the healthy and diseased tomato fruits were noted. Total in all only eight different amino acids, viz., Lysine, Arginine, Histidine, Aspartic acid, Glutamic acid, Alanine, Methionine and one Unidentified amino acid (Rf.

Estimating growth rates, decomposition analysis and instability of Groundnut crop production in Andhra Pradesh

The main objectives of the study are to examine the trends in area, production and productivity of groundnut in Andhra Pradesh over a period of 1995-96 to 2010-2011. Compound growth rates of area production and productivity were estimated by fitting semi log trend equation. Decomposition of output growth of groundnut was examined by fitting component analysis model. The study analyzed that area, production and productivity had decreased during the study period i.e.

Lessons from successful women entrepreneurs- A panacea for other women entrepreneurs in India

Women’s Development is directly related with national development. Empowerment of women has emerged as an important issue in recent times. The economic empowerment of women is being regarded these days as a Sine-quo-non of progress for a country, hence the issue of economic development of women is of paramount important to political thinkers, social scientists and reformers.

MHD boundary layer flow with forced convection past a nonlinearly stretching surface with variable temperature and nonlinear radiation effects

In the present study, the steady, laminar, nonlinear hydromagnetic forced convective flow of a viscous, incompressible, electrically conducting and radiating fluid over a nonlinearly stretching surface of variable temperature with nonlinear radiation effects in the presence of a variable transverse magnetic field has been investigated. Stretching of the surface is considered in a power-law distribution form. The boundary layer equations for nonlinear flow and heat transfer are reduced to ordinary nonlinear differential equations by employing similarity transformation.

The circular causation of ethnicity and development in North East India

The relationship between ethnicity and development needs to be scrutinized at this juncture when a number of rising demands come from a basis fully engraved of ethnic realities. This is more observed when there is an insertion of nation- state model of political institution to a society highly knit by primordial realities. The paper tries to look at the circular relationship between ethnicity and development in a specific context of multi ethnic society of north east India.

Effect of organic and inorganic sources of nitrogen on growth, yield and quality of cotton (gossypium hirsutum l.)

A field experiment was conducted during 2013 at experimental farm, Faculty of Agriculture, Annamalai University to study the effect of organic and inorganic sources of nitrogen on growth, yield and quality of cotton. The soil of the experiment farm is deep clay, low in available nitrogen, medium in available phosphorus and high in available potassium. The experiment was conducted in randomized block design and replicated thrice.

Nitrate contamination in vegetables from two selected cities in China

Nitrate contamination is one aspect of the safety issue about vegetables. A fast determination method of nitrite was used to access the nitrite contamination level of vegetables sampled form two selected cities in China (Changde and Yangling). The result indicated that the nitrate contamination level of vegetables from Yangling is higher than vegetables form Changde.  The rood vegetables showed the highest contamination level and leaf vegetables and solanaceous vegetables showed lower. Most of test samples contaminated nitrate with level higher than they corresponding MRL.

Adherence of the biosilica to the bioceramic tiles

Vitrified bioceramic tiles were subjected by the incorporation of synthesized biosilica from bioresidue of Rice straw ash. The partially and fully substitution of biosilica for quartz in porcelain formulation enhances the physico-mechanical parameters. The ultrasonic pulse velocity was correlated with the compressive strength. The result which confirms that the biosilica act as a filler in porcelain tiles thus improves the mechanical behaviour of bioceramic tiles than reference tile.

Studies on adsorption of Pb (II) and Hg (II) Ions from aqueous solution using modified chitosan as adsorbent

Toxic heavy metals are being discharged significantly into the aquatic ecosystems as a result of various industrial operations, causing serious concern, especially in the developing countries over the last few decades. Heavy metals are not biodegradable and hence, accumulate in the living beings, causing diseases and health disorders. It is imperative that these metal ions are removed from the aqueous medium before discharging into the environment.

Comparing the new generation world view-2 to hyperspectral image data for species discrimination

Discriminating indicator species in mountainous rangelands is critical for better understanding the condition of the rangeland and their levels of degradation. The objective of this study was to compare whether canopy reflectance spectra, resampled to WorldView-2 and HyMap resolution could discriminate four increaser species representing different levels of rangeland degradation. Canopy spectral measurements were taken from the four indicator species: Hyparrhenia hirta, Eragrostis curvula, Sporobolus africanus, and Aristida diffusa.