Selenium Species Determination in Se-Enriched Grain Crops with Foliar Spray of Sodium Selenite by IP-RP-HPLC-UV-HG-AFS

The results of studies of antiradical activity by the method of DPPG absorption by extracts of rye, wheat, and oat seedlings enriched with selenium from aqueous solutions of sodium Selenite 0.001, 0.005, 0.01, 0.05% concentrations within 24 hours. Selenium inhibits the rate of reaching the "plateau" of the DPPG absorption reaction, but increases the anti-radical activity of grain seedlings. The total content of phenolic compounds in grain extracts was determined spectrophotometrically. The influence of selenium on the growth processes of wheat, rye, and oats is shown. Concentrations of 0.001 and 0.005% have a stimulat-ing effect on the length of the roots and coleoptile of grain crops. At a concentration of 0.05%, selenium is deposited as granules in the cells of the germ of the grain. Oats are the most sensitive crop to selenium, and wheat and rye are promising as crops that can exhibit antiradical properties and source of organic forms of selenium.

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Modern preconcentration methods for the determination of selenium species in environmental water samples

TrAC Trends in Analytical Chemistry ◽

10.1016/s0165-9936(04)00706-x ◽

2004 ◽

Author(s):

B WAKE

Keyword(s):

Water Samples ◽

Environmental Water ◽

Environmental Water Samples ◽

Selenium Species

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Development and Validation of a Simple RP-HPLC Method for Simultaneous Estimation of Three Therapeutically Active Compounds in a Polyherbal Formulation: Habb-e-Irqun-Nisa

Planta Medica ◽

10.1055/s-0033-1336563 ◽

2013 ◽

Vol 79 (05) ◽

Author(s):

A Ali ◽

MA Khan ◽

H Kabir ◽

S Ahmad ◽

MZ Abdin

Keyword(s):

Hplc Method ◽

Simultaneous Estimation ◽

Active Compounds ◽

Polyherbal Formulation ◽

Rp Hplc ◽

Development And Validation

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Comparative Effectiveness Of Seed Treating And Foliar Insecticides Against Sucking Pests Of Cotton And Impact On Their Natural Enemies

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v38i1.15190 ◽

2013 ◽

Vol 38 (1) ◽

pp. 61-70 ◽

Cited By ~ 1

Author(s):

SMA Hossain ◽

MA Baque ◽

MR Amin

Keyword(s):

Natural Enemies ◽

Untreated Control ◽

Seed Treatment ◽

Foliar Spray ◽

Cost Ratio ◽

Research Station ◽

Benefit Cost Ratio ◽

Benefit Cost ◽

Thrips Population ◽

Cotton Cultivar

The Imidacloprid insecticide, Gaucho 70 WS at 1.5, 2.5, 3.5, 4.5 and 5.5 g/kg seed was used as seed treatment and monocrotophos 40 WSC at 1120 ml/ha was applied as foliar spray on CB9 cotton cultivar to suppress aphid, whitefly and thrips, and impact on their natural enemies during 2008-2011 at the Regional Cotton Research Station, Dinajpur, Bangladesh. The activity of natural enemies, such as ladybird beetle, lacewing, syrphid, and spider population on the sucking pests attacking cotton cultivar CB9 and yield of cotton were recorded. Imidacloprid significantly reduced aphid, whitefly, and thrips population on cotton crops compared to untreated control or foliar spray of monocrotophos 40 WSC at 1120 ml/ha. Ladybird beetles, lacewings, syrphids, and spiders were abundant in the field but their population decreased in the treated plots compared to untreated control. The CB9 cotton cultivar produced significantly higher yield (1.73 t/ha) with a benefit cost ratio 12.47 when seeds were treated with Imidacloprid at 5.5 g/kg fuzzy seed. This study indicated that Imidacloprid (Gaucho 70 WS) used as a seed treatment may be suggested to the cotton growers for controlling sucking pests. Bangladesh J. Agril. Res. 38(1): 61-70, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15190

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