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Navadwip, India

Bidhan Chandra Krishi Viswavidyalaya, also known as BCKV and Bidhan Chandra Agricultural University, is an agricultural university in West Bengal, India. The university aims to provide higher education in theoretical and technical fields of Agriculture, Horticulture and Agricultural Engineering, provides Bachelor of Science, Master of Science & Doctorate degree in the respective fields and thus provides modern and high value education to create scientists of tomorrow with the capability to work at national and international levels. Wikipedia.

Mandal S.,Bidhan Chandra Agricultural University
Acta Phytopathologica et Entomologica Hungarica | Year: 2012

Field studies were undertaken for two consecutive seasons to evaluate the bioefficacy of cyazypyr 10% OD, a new molecule belonging to anthranilic diamide group of insecticides, along with imidacloprid 17.8% SL and fipronil 5% SC as standard checks, against the insect pest complex of tomato vis-à-vis its impact on natural enemies and crop health. The toxicity of cyazypyr 10% OD and four other molecules, each at two doses (diluted in 600l water), against the pupal stage of Trichogramma pretiosum Riley, an important egg parasitoid of Helicoverpa armigera Hubn., was evaluated in the laboratory. Cyazypyr 10% OD @ 90 and 105 g a.i./ha was highly effective in controlling the fruit borer, Helicoverpa armigera Hubn., aphid, Aphis gossypii Glov. and white fly, Bemisia tabaci Gen., and increasing the yield of marketable fruits. This insecticide @ 60-105 g a.i./ha effectively controlled the leaf miner, Liriomyza trifolii Burg. Imidacloprid 17.8% SL @ 22.5 g a.i./ha and fipronil 5% SC @ 60 g a.i./ha were also highly effective in controlling the pests. Considering the bioefficacy and yield, cyazypyr 10% OD @ 90 g a.i./ha may be recommended for effective control of pest complex of tomato. Cyazypyr 10% OD @ 45-105 g a.i./ha did not significantly reduce the field population of natural enemies and was safe to the crop even @ 360 g a.i./ha. In laboratory test, cyazypyr @ 90 and 60 g a.i./ha found to be safe to T. pretiosum Riley pupae, causing only 23.17 and 20.73% mortality, respectively.

Banerjee R.,University of Calcutta | Ghosh A.K.,Jadavpur University | Ghosh B.,Calcutta Medical College and Hospital | Bhattacharyya S.,Bidhan Chandra Agricultural University | Mondal A.C.,University of Calcutta
Clinical Medicine Insights: Pathology | Year: 2013

Despite the devastating effect of suicide on numerous lives, there is still a lack of knowledge concerning its neurochemical aspects. There is increasing evidence that brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) are involved in the pathophysiology and treatment of depression through binding and activating their cognate receptors TrkB and TrkA respectively. The present study was performed to examine whether the expression profiles of BDNF and/or TrkB as well as NGF and/or TrkA were altered in the hippocampus of postmortem brain of the participants, who had committed suicide and whether these alterations were associated with specific psychopathologic conditions. These studies were performed on the hippocampus of 21 suicide victims and 19 non-psychiatric control individuals. The protein and mRNA levels of BDNF, TrkB, NGF, and TrkA were determined by sandwich enzyme-linked immunosorbent assay, Western blot and reverse transcription-PCR. Given the importance of BDNF and NGF and their cognate receptors in mediating physiological functions, including cell survival and synaptic plasticity, our findings of reduced expression of BDNF, TrkB, NGF, and TrkA on both the protein and mRNA levels of postmortem brains of suicide victims suggest that these molecules may play an important role in the pathophysiological aspects of suicidal behavior. © the author(s), publisher and licensee Libertas Academica Ltd.

Kole C.,Clemson University | Kole C.,Bidhan Chandra Agricultural University | Kole P.,Clemson University | Randunu K.M.,Clemson University | And 5 more authors.
BMC Biotechnology | Year: 2013

Background: Recent research on nanoparticles in a number of crops has evidenced for enhanced germination and seedling growth, physiological activities including photosynthetic activity and nitrogen metabolism, mRNA expression and protein level, and also positive changes in gene expression indicating their potential use in crop improvement. We used a medicinally rich vegetable crop, bitter melon, as a model to evaluate the effects of seed treatment with a carbon-based nanoparticle, fullerol [C60(OH)20], on yield of plant biomass and fruit characters, and phytomedicine contents in fruits.Results: We confirmed the uptake, translocation and accumulation of fullerol through bright field imaging and Fourier transform infra-red spectroscopy. We observed varied effects of seed treatment at five concentrations, including non-consequential and positive, on plant biomass yield, fruit yield and its component characters, and content of five phytomedicines in fruits. Fullerol-treatment resulted in increases up to 54% in biomass yield and 24% in water content. Increases of up to 20% in fruit length, 59% in fruit number, and 70% in fruit weight led to an improvement up to 128% in fruit yield. Contents of two anticancer phytomedicines, cucurbitacin-B and lycopene, were enhanced up to 74% and 82%, respectively, and contents of two antidiabetic phytomedicines, charantin and insulin, were augmented up to 20% and 91%, respectively. Non-significant correlation inter se plant biomass, fruit yield, phytomedicine content and water content evidenced for separate genetic control and biosynthetic pathways for production of plant biomass, fruits, and phytomedicines in fruits, and also no impact of increased water uptake.Conclusions: While our results indicated possibility of improving crop yield and quality by using proper concentrations of fullerol, extreme caution needs to be exercised given emerging knowledge about accumulation and toxicity of nanoparticles in bodily tissues. © 2013 Kole et al.; licensee BioMed Central Ltd.

Ghosh S.K.,Centenary College | Ray S.K.,Bidhan Chandra Agricultural University | Hasan M.A.,Bidhan Chandra Krishi Viswavidyalaya
Acta Horticulturae | Year: 2014

Five isolates of Trichoderma viride, two isolates of Beauveria bassiana, one isolate of Bacillus subtilis and Pseudomonas sp. were screened against Fusarium moniliforme var. subglutinans for their antagonistic potentiality by dual culture plate method. Three isolates of T. viride and one isolate of B. bassiana were class-1 antagonists. Among the class-1 antagonists, T10 isolate of T. viride showed best hyperparasitic activity. Both B. subtilis and Pseudomonas sp. strongly inhibited the growth of mycelium and spore germination of the pathogen. The non-volatile metabolites of B. subtilis and Pseudomonas sp. exhibited 72 and 79.50% of inhibition of radial growth, respectively and 82 and 95% of inhibition of growth (dry weight), respectively. Non-volatile metabolites of both bacteria also inhibited spore germination. Volatile metabolites of both bacteria were tested against both radial growth and spore germination of the pathogen and they inhibited them. Therefore, this in vitro study strongly suggested that T. viride, B. subtilis and Pseudomonas sp. can be applied in field trial (in vivo) as effective biocontrol agents, against panicle malformation (F. moniliforme var. subglutinans) of mango.

Chatterjee M.L.,Bidhan Chandra Agricultural University | Mondal S.,Bidhan Chandra Agricultural University
Acta Horticulturae | Year: 2012

Insect pests are the main limiting factor for vegetable production in India and tropical Asia, amongst which Lepidopteran pests cause a significant amount of damage. Vegetables are some of the most profitable crops and farmers everywhere feel the need to protect such high value crops from any type of damage caused by insect pests. They often use synthetic insecticides indiscriminately, and insect resistance to insecticides is very common. Lepidopteran pests such as diamond-back moth (DBM) on cabbage (Plutella xylostella), fruit borer on tomato (Helicoverpa armigera), pod borer on chilli (Spodoptera litura), shoot and fruit borers on brinjal (Leucinodes orbonalis) and okra (Earias fabia) are among the major pests of vegetables. To control Lepidopteran pests efficiently, some new pesticides, with novel modes of action, have been developed recently. To determine the effectiveness of the new pesticides compared with traditional chemicals (chlorpyrifos+cypermethrin), five field experiments were done on brinjal, okra tomato, cabbage and chilli, over two seasons. Altogether nine pesticides (flubendiamide, spinosad, emamectin benzoate, chlorfenapyr, Bacillus thuringiensis, novaluron, lufenuron, methoxyfenozide and mixed formulations of chlorpyrifos+cypermethrin) were used with untreated controls. All other agronomic practices were standard, and a blanket spray to control sucking pest insects and mites was applied when necessary. Results showed that flubendiamide, spinosad and chlorfenapyr were highly effective in reducing the damage caused by diamond-back moth on cabbage, fruit borer on tomato, pod borer on chilli, shoot and fruit borer on brinjal and shoot and fruit borer on okra, and led to increases in yield. Novaluron was most effective against pod borer on chilli, closely followed by spinosad, flubendiamide and chlorfenapyr. In the case of fruit borer on tomato, spinosad was the most effective. Shoot and fruit borers on brinjal and okra were also controlled effectively by flubendiamide, spinosad and chlorfenapyr. Emamectin benzoate methoxyfenozide, and Bacillus thuringiensis, also performed well in reducing damage and increasing yield. Bacillus thuringiensis and methoxyfenozide were, however, less effective against shoot and fruit borer on brinjal and okra. The new pesticides, with novel modes of action and high selectivity, were highly effective against Lepidopteran pests. They are safer to non-target organisms and quickly degrade to non-toxic products.

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