Entity

Time filter

Source Type


Arshad A.M.,Bihar Agricultural University | Aishatul B.,Aligarh Muslim University
Research Journal of Chemistry and Environment | Year: 2015

Sixteen most efficient out of two hundred thirty six isolates of Aspergillus niger aggregates were collected from agricultural soil of forty districts in Uttar Pradesh, India and were subjected to heavy metals sorption, pesticides tolerance and ochratoxin A production to find the best isolate for commercial exploitation in biosorption of heavy metals processes utilization in the preparation of biopesticides formulations. Metal tolerance in term of minimum inhibitory concentration (MIC) was 350-400 μg/ml for Ni+2 and Cr+6 and 150-175 μg ml1 for Cd+2 against the tested isolates of A. niger. Biosorption of all metals was found higher at 4 mM initial metal concentration. In single-metal system A. niger isolates adsorbed Ni+2 6.3-67, 25.5-29.6 and 17 3-20.2 mg g1 biomass; Cd+2 7.2-8.6, 19.4-21.4 and 16.8-18.1 mg g1 biomass; and Cr+6 7.4-8.5, 18.2-19.5 and 16.0-16.6 mg g1 biomass at 2, 4 and 6 mM metal concentration respectively. Highly significant (P≤ 0.0001) varying compatibility with the best performance of SkNAn5 of A. niger isolates for maximum inhibition in the growth of the fungus (ED90) and safe tolerance limits (ED50) was observed with pesticides such as carbendazim, captan, mancozeb, metalaxyl, thiram and carbofuran. Detection of mycotoxin production assay was done with high-performance liquid chromatography (HPLC) and none of the isolates was found having production of ochratoxin A (< 1ηg g1) for health security. Source


Gantait S.,University Putra Malaysia | Das A.,Bihar Agricultural University | Mandal N.,Instrumentation and Environmental Science
Sugar Tech | Year: 2015

The present review illustrates the pharmacological properties and production of planting materials through in vitro organogenesis of Steviarebaudiana (Bertoni). The plant is native to Paraguay; however, the main producers of stevia are Japan, China, Taiwan, Thailand, Korea, Brazil, Malaysia and India. This plant is recorded as having a non-caloric natural sugar, alternative to artificially produced sugar substitutes and hence traditionally has been used to sweeten beverages. This article enumerates an overview on pharmacological and micropropagation aspects which are of use to researchers for further exploration for the indispensable improvement of this potential herb with medicinal importance. © 2014, Society for Sugar Research & Promotion. Source


Padbhushan R.,Bihar Agricultural University | Kumar D.,Punjab Agricultural University
Journal of Plant Nutrition | Year: 2015

A greenhouse experiment with green gram on boron (B) deficient calcareous soils was conducted for two years at Ludhiana (Punjab), India to study soil B fractions and response of green gram to B application. Three soils with calcium carbonate (CaCO3) content 0.8 (Soil I), 2.1 (Soil II) and 4.6 (Soil III) percent were collected from different sites of Ludhiana and Bhatinda districts, Punjab, India. The treatments comprised of five levels of soil applied B (0, 0.5, 0.75, 1.0, and 1.5 mg B kg−1). The experiment was laid out in completely randomized design (CRD) factorial design with three replications. Readily soluble B comprised 0.39 to 0.76 percent in Soil I, 0.32 to 0.54 percent in Soil II, and 0.21 to 0.34 percent in Soil III of the total B, taking into account of all the levels of B applied at both stages of crop growth. Readily soluble B increased with increasing application rates of B and decreased from grand growth stage (40 days after sowing) to maturity of the crop. Specifically adsorbed, oxide bound, residual, and total B was higher in Soil III as compared to Soil II or Soil I. At maturity, specifically adsorbed B converted into other fractions to maintain equilibrium in soil solution. Organically bound B was greater than oxide bound B. Among all fractions, the residual fraction accounted for the major fraction of the total B. Soil application of lowest level of B was adequate to cause significant increase in dry matter yield and seed yield of green gram regardless of type of soil. © 2015, Copyright © Taylor & Francis Group, LLC. Source


Padbhushan R.,Bihar Agricultural University | Kumar D.,Punjab Agricultural University
Communications in Soil Science and Plant Analysis | Year: 2015

Boron (B) plays an important role in influencing nutrient uptake from soil to plant system. The present study was planned to determine the influence of B application on yield and nutrient uptake in green gram in B-deficient calcareous soils. Three soils with calcium carbonate contents of 0.8 (soil I), 2.1 (soil II), and 4.6 (soil III) percent were collected from different sites of Ludhiana and Bhatinda Districts, Punjab, India. The treatments comprised four levels of soil-applied B (0.5, 0.75, 1.0, and 1.5 mg B kg−1) and two levels of foliar applied B (0.1 and 0.2 percent borax solution) along with the control (no B application). The experiment was laid out in factorial design with three replications. Soil-applied B had more influence on mean dry-matter yield whereas foliar applied B affected mean grain yield. Among all of the soil-applied B, 0.5 mg kg−1 level was the best treatment, whereas 0.1 percent borax solution was best for foliar applied B. No significant variation was observed among the best soil and foliar treatments. Boron contents in stem, leaves, and grains increased significantly with increase in B application. Soil applied B had significant impact on nutrient uptake up to 0.5 mg B kg−1 level both in straw and grains. There was a synergistic effect of B application on phosphorus (P) and potassium (K) uptake whereas an antagonistic impact was observed for nitrogen (N) uptake. There was a nonsignificant effect on nutrient uptake in both straw and grains up to 5 percent of B calcium carbonate in soil. The combined effect of B and soils had a significant effect on nutrient uptake up to the 0.5 mg B kg−1 level for soil-applied B and 0.1 percent borax solution for foliar applied B. © , Copyright © Taylor & Francis Group, LLC. Source


Padbhushan R.,Bihar Agricultural University | Kumar D.,Punjab Agricultural University
Communications in Soil Science and Plant Analysis | Year: 2015

Distribution of boron (B) in different fractions is still not well defined when it is applied in B-deficient alkaline calcareous soil and after harvesting of the sown crop. In the present greenhouse experiment with green gram crop, three B-deficient soils with calcium carbonate contents of 0.8 (S I), 2.1 (S II), and 4.6 (S III) percent were collected from different sites in Ludhiana and Bhatinda Districts, Punjab, India. The treatments composed of five levels of soil-applied B (0, 0.5, 0.75, 1.0, and 1.5 mg B kg−1) soil and the experiment was laid out in Completely Randomized Design (CRD) factorial design with three replications. Mean readily soluble, specifically adsorbed, and oxide-bound B fractions got increased significantly with increase in B applications. Distribution of readily soluble B was more in low calcareous soil than in high calcareous soil. Mean values of specifically adsorbed, oxide-bound, residual, and total B were significantly more in high calcareous soils as compared to low calcareous soils. At maturity, specifically adsorbed B converted into other fractions to maintain equilibrium in soil solution. Organically bound B was greater than the oxide-bound B fraction. Among all fractions, residual fraction accounted for the major portion of the total B. Available B was negatively and significantly correlated with calcium carbonate (CaCO3) content of soil (r = −0.99*). At the same time, specifically bound B was also negatively and significantly correlated with readily soluble B (r = −0.99*) whereas organically bound B was positively correlated with organic carbon content of soil (r = −0.99*). © , Copyright © Taylor & Francis Group, LLC. Source

Discover hidden collaborations