Influence of Organic Manure and Lime on Cadmium Mobility in Soil and Uptake by Spinach (Spinacia oleracea L.)     

Tapas Kumarpandit  Sushanta Kumarnaik  Prasenjit Kumar Patra  Nilanjan Dey  Dilip Kumar Das 《Communications in Soil Science and Plant Analysis》2017,48(4):357-369

Spinach grown in cadmium (Cd)-contaminated soils accumulates Cd compounds in toxic concentration contaminating the food chain leading to the chronic toxic effects on human and animal health. A study was conducted in a Cd-contaminated soil to examine the ameliorative effect of lime and organic manure on the mobility of Cd and its uptake in spinach. Application of lime or organic manure or both decreased the Cd concentration in soil and shoots and increased chlorophyll content of leaves. As compared to the control treatment, combined application of lime and organic manure decreased the level of Cd in soil by 54.7%, in spinach shoot by 61.3%, and the transfer factor of Cd by 35.0% and increased in leaf chlorophyll content by 29.4%. Combined application of lime and organic manure emerged as a viable option in reducing the mobility of Cd in contaminated soil for growing spinach.  相似文献   

Effects of biofilm on turbulence characteristics and the transport of fine sediment     

Wei Cheng  Hongwei Fang  Haojie Lai  Lei Huang  Subhasish Dey 《Journal of Soils and Sediments》2018,18(10):3055-3069

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Restoration of hard mast species for wildlife in Missouri using precocious flowering oak in the Missouri River floodplain, USA     

B.C. Grossman  M.A. Gold  D.C. Dey 《Agroforestry Systems》2003,59(1):3-10

Increased planting of hard mast oak species in the Lower Missouri River floodplain is critical as natural regeneration of oak along the Upper Mississippi and Lower Missouri Rivers has been limited following major flood events in 1993 and 1995. Traditional planting methods have limited success due to frequent flood events, competition from faster growing vegetation and white-tailed deer herbivory. Results of early growth response of swamp white oak (Quercus bicolor Willd.) seedlings in relation to initial acorn mass and size, and early rapid shoot growth for seedlings produced by containerized root production method (RPM™), are presented. Containerized RPM™ seedlings grown in the greenhouse under optimal conditions demonstrate that seed size had no discernable impact on first-year root or shoot size. Seedling survival for the first two years and acorn production for the first three years after outplanting are presented, comparing use of containerized RPM™ swamp white oak seedlings to nursery stock. Flood tolerant precocious RPM™ oak seedlings in the floodplain provide a source of food for acorn-consuming wildlife ten to fifteen years sooner than oaks originating from natural regeneration, direct seeding or traditional bare root planting. Compared to bare root nursery stock that produced no acorns, some RPM™ swamp white oak seedlings averaged 4.3, 5.2, and 6.3 acorns/seedling in the first three years after fall outplanting. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   

Morphological indicators of stock quality and field performance of red oak (Quercus rubra L.) seedlings underplanted in a central Ontario shelterwood     

Dey  Daniel C.  Parker  William C. 《New Forests》1997,14(2):145-156

The value of initial stem diameter near the root collar, shoot length and number of first-order lateral roots (FOLR) as morphological indicators of stock quality and field performance was examined for bareroot (1+0, undercut) red oak (Quercus rubra L.) underplanted in a shelterwood in central Ontario. These three attributes were measured on more than 400 seedlings prior to planting, and their relationship with height and basal diameter growth two years after planting was determined using correlation and regression analysis. Initial diameter, shoot length and number of FOLR were positively and significantly correlated with second-year height and diameter. These relationships were strongest for diameter, but this variable explained less than 25% of the total variation in growth. Of the three indicators, diameter was also the best predictor of several physical characteristics of root systems two years after planting. Initial diameter was significantly correlated with root volume, root area and lateral root, taproot and total root dry mass. Weaker relationships existed between initial shoot length and number of FOLR and second-year root system features. Stem diameter two years after planting was more strongly related to root volume, area and dry mass than was initial diameter, the probable result of adjustment in root-shoot balance of planting stock to the shelterwood environment.  相似文献   

Recombinant antigen-based dipstick ELISA for the diagnosis of leptospirosis in dogs     

Dey S  Mohan CM  Ramadass P  Nachimuthu K 《The Veterinary record》2007,160(6):186-188

A recombinant LipL 32 antigen-based dipstick ELISA was developed as a screening test for the detection of leptospiral antibodies in serum samples from dogs. The antibodies were detected by a change in the colour of the substrate solution when the recombinant antigen-coated dipsticks were dipped into it. The relative sensitivity, specificity and accuracy of the test, compared with the standard microscopic agglutination test, were 95.9 per cent, 93.8 per cent and 94.8 per cent, respectively.  相似文献   

Phylogenetic Analysis of LipL32 Gene Sequence of Different Pathogenic Serovars of <Emphasis Type="Italic">Leptospira</Emphasis>     

Dey S  Mohan CM  Ramadass P  Nachimuthu K 《Veterinary research communications》2007,31(5):509-511

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Comparative effects of feeding single- and multi-strain probiotics to commercial layers on the productive performance and egg quality indices     

B.C. Ray  S.D. Chowdhury  S.C. Das  B. Dey  A. Khatun  B.C. Roy  M.A. Siddik 《The Journal of Applied Poultry Research》2022,31(3):100257

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A spontaneous outbreak of colibacillosis in antimicrobial-fed piglets and their response to therapy     

B.P. Dey  D.C. Blenden  D. Mueller 《Preventive veterinary medicine》1983,1(4):347-355

In determining the effect of prior feeding of antimicrobials on subsequent antimicrobial therapy in induced colibacillosis of piglets with Escherichia coli serotype O₆₂ (Dey et al., 1977), study groups in one trial developed spontaneous colibacillosis due to a different Escherichia coli serotype O₁₄₇. This paper reports the results and conclusion drawn from this outbreak.

Both groups, irrespective of antimicrobial feeding, developed disease, and the attack rates for the groups were not significantly different. Neither mortality nor the clinical course of illness in animals without therapy changed significantly as a function of antimicrobial feeding. The antimicrobial feeding had no effect on the therapeutic efficacies of chloramphenicol or chlortetracycline utilized for treating the disease. Chloramphenicol therapy was more effective in terminating the disease.  相似文献   

Evaluation of a fusion gene-based DNA prime-protein boost vaccination strategy against Newcastle disease virus     

Khulape  Sagar A.  Maity  Hemanta Kumar  Pathak  Dinesh Chandra  Ramamurthy  Narayan  Ramakrishnan  Saravanan  Chellappa  Madhan Mohan  Dey  Sohini 《Tropical animal health and production》2019,51(8):2529-2538

Tropical Animal Health and Production - The low potency of genetic immunization has to date impeded development of commercial vaccines against major infectious diseases. The aim of this study was...  相似文献   

First genetic data for band-winged grasshoppers (Orthoptera: Acrididae: Oedipodinae) of the Biskra region of Algeria with new records for the country     

Abdelhamid Moussi  Lara-Sophie Dey  Daniel Petit  Abderrahmane Abba  Robert Klesser 《African Zoology》2018,53(1):31-40

DNA barcoding represents an objective tool for fast species identification, especially for taxa for which morphological identification is difficult. One current limitation of barcoding is the lack of reference sequences for many groups. While many European and North American countries have started their own barcoding initiatives to generate complete local inventories and databases, such efforts are sparse for African, Asian and South American countries, despite their high biodiversity and comparably poorly explored faunas. Therefore, it is important to start local barcoding efforts in such countries. In this study we performed DNA barcoding for the band-winged grasshoppers of the Biskra province in Algeria, a region of high diversity for this taxon. All specimens were identified morphologically and then barcoded. We generated a total of 47 sequences of the COI gene for 22 morphologically identified species of Oedipodinae, many of which were sequenced for the first time. We present the data in a phylogenetic tree, which suggests monophyly for most genera, but rejects it for Sphingonotus and Vosseleriana. Statistical species delimitation worked well for most genera, except those within the Sphingonotini, likely because these have radiated rather recently. Together with data sourced from the literature we used our new data set to generate an updated list of band-winged grasshoppers for the region. Several species are recorded for the region and for the country for the first time. One species appears to be new to science. Furthermore, we found geographic variation within several more widespread species for which data from other countries were present. We consider the new data as an important resource for future faunistic, ecological and biodiversity studies and point out the importance of local (taxon-specific) barcoding studies.  相似文献