February 2014
Use of nutrient stock:balance (NSB) ratio for assessment of sustainability of agricultural system
Nutrient stock:balance (NSB) ratio is a valuable tool for assessing the sustainability of agricultural land. The experiment design was split plot in randomised complete block design (RCBD) done in triplicate. The NSB ratio was monitored by the effect of applied fertilizer (N and K) and soybean nitrogen contribution in cassava/soybean intercrop...
February 2014
Effects of stocking density on growth and feed utilization of grouper (Epinephelus coioides) reared in recirculation and flow-through water system
Stocking density is well known as an important field in aquaculture. Although many studies on stocking density have been conducted, however effects of rearing grouper (Epinephelus coioides) with different densities in recirculation and flow-through system are not well known. In this study, grouper juveniles (14.22 ± 0.67 g) were reared into 100-L aquaria at 15, 20 and 25 fish/aquaria and cultivated for 70 days....
February 2014
Occurrence and antimicrobial resistance of Salmonella serotypes isolates recovered from poultry of Western Paraná, Brazil
This study was conducted to determine the occurrence and antimicrobial resistance of Salmonella serotypes isolates from feces, feed and broiler litter in poultry broilers in western Paraná between 2006 and 2010. The antigenic characterization and identification of serotypes confirmed 118 samples of Salmonella spp., belonging to 38 different serotypes. The most common serotypes identified were S. enteritidis...
February 2014
Effect of silicon on real time nitrogen management in a rice ecosystem
Field experiments were conducted during Kharif season of 2009 on sandy loam soil at Doddajala, Bangalore, India of eastern dry zone soils of Karnataka to investigate the effect of silicon (Si) and nitrogen application on the growth and yield of rice, using Cv. BI-34, a medium duration genotype. The results revealed that higher grain and straw yield was noticed with application of calcium silicate at 2 t ha-1 along with...
February 2014
Efficacy of some spices as sorghum grain protectants against Sitophilus zeamais Motschulsky [Coleoptera: Curculionidae]
Studies were carried out to determine the efficacy of three spices (Allium sativum L., Capsicum frutescens L., and Zingiber officinale Rosc.) against S. zeamais reared on sorghum grains. Doses of 0.5, 1.0 and 1.5 g of each of A. sativum, C. frutescens and Z. officinale and 0.12 g of permethrin were applied to 20 g of sorghum grains infested with S. zeamais under constant conditions of 30 ± 2°C and 65 ±...
February 2014
Chemical composition and antimicrobial and antioxidant activity of essential oil and various plant extracts from Prunus myrtifolia (L.) Urb
In this study focused on research on plants as a source of alternative and natural antimicrobial substances, the chemical composition of the essential oil from Prunus myrtifolia (L.) Urb. was assessed through gas chromatography coupled to mass spectrometry (GC/MS) and phytochemical screening of different extracts (aqueous, ethanolic, ethyl acetate, and hexanic) from the same plant, as well as the antimicrobial effect...
February 2014
Growth, thermal tolerance and oxygen consumption in rohu, Labeo rohita early fry acclimated to four temperatures
Determination of early life stages of fish for thermal tolerance, optimum temperature for growth, rate of oxygen consumption is becoming essential for aquaculture industry in the climate change scenario due to long-term and short term (seasonal and diurnal) variability in temperature. Emphasis was made to understand the response of early of rohu (0.09 to 0.1 g) to thermal acclimation. Three hundred early fry stage rohu,...
February 2014
Characteristics and suitability of some arid soils in Southeastern Iran for wheat cultivation
A study was conducted to characterize the calcareous soils of the Askara plain in Southeastern Iran and evaluate their potential for wheat production. Sixteen soil profiles within the colluvial fan in different physiographic units were studied. Four phases of soils were identified namely the Ashkara, Dareabad, Khalandi, and Sheikhabad soils. All soils were classified as Entisols, namely Aridic Ustortents and Aridic...
February 2014
Performance of wheat (Triticum aestivum L.) crop under different spacings of trees and fertility levels
A field experiment was laid out at Pantnagar (Uttarakhand, India) in Mollisols during rabi season (2009-10) to study effect of spacing and fertility levels on growth and yield of wheat (Triticum aestivum L.) under different tree species in Terai region. The experiment was conducted in split-split plot design comprising four tree species in main plots, four spacing treatments in sub plots and four fertility levels in...
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