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  • 1
    Electronic Resource
    Electronic Resource
    Effects of foliar application of s-triazines on protein, amino acids, carbohydrates, and mineral composition of pea and sweet corn seeds, bush bean pods, and spinach leaves (1972)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 20 (1972), S. 1256-1259 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60184a050
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of selected pesticides on germination and associated metabolic changes in wheat and mung bean seeds (1972)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 20 (1972), S. 1000-1003 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60183a034
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of light and its interaction with nitrate and ammonium ions in seed germination of Caesulia axillaris (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 85 (1992), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Seeds of Caesulia axillaris Roxb. displayed an absolute light requirement for germination throughout the period of dry storage at 28°C. The seeds were found to show a gradual increase in percent germination with storage time - reaching a maximum value between 8-14 months and then a sharp decline. Percent water uptake and photosensitivity were at maximum after a 5-day imbibition period in the dark in both seedlots studied. Seedlot I, which was only marginally responsive to far-red light, showed a nearly complete red-far-red reversal effect in contrast to seedlot II. The latter also displayed a considerable promotion of germination in far-red light. Interestingly, a noticeable degree of heterogeneity, besides the one observed in both seedlots with reference to red light, was found to exist in seedlot II for far-red light. Exogenous application of nitrate and ammonium, at the levels occurring in soil during seed germination/seedling emergence phase of the plant in nature, promoted a considerable proportion of high Ø-requiring seeds to germinate under irradiation conditions establishing low Ø-value. The probable ecological implication of this reponse has been discussed. Little correlation was found between the requirement for an exogenous supply of nitrate and the endogenous nitrate level in the seeds in their response to far-red light.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1992.tb05261.x
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  • 4
    Electronic Resource
    Electronic Resource
    The magnetodynamic filters in monitoring the contaminants from polluted water systems (abstract) : 38th Annual Conference on Magnetism and Magnetic Materials (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 7187-7187 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The magnetic interaction seems to influence the "structural memory'' of water systems which is quenched in ideally pure water. The sedentary lifetime of each water molecule is extremely short (10−10 s) and its molecular structures may be influenced by some physical effect like magnetic field treatment, it's space time gradients, water velocity, pressure drop, etc. in the interpolar space, so as to yield a noticeable temporal magnetopotential development characterizing the properties of homogeneous and heterogeneous water systems. This principle is also extended to prevailing water systems which always contain various impurities, gas, molecules, ions, microscopic particles in random order. Still the existence of structural memory may be verified by reliable experimental data. The magnetopotential curves of different water systems depict the design and develop–software package for constructing the magnetodynamic-filters superior to the existing techniques on pollution studies like remote sensing, muon spin resonance, laser spectroscopy, nuclear techniques, the gamma ray peak efficiency method, trace elemental characterization due to NBS, neutron activation analysis, and graphite furnance atomic absorption spectrometer. The physiochemical characteristics of water calibrated in terms of magnetopotential curves change with the removal of dissolved gasses, impurities, thermal activation, etc. and the algae, bacteria, phosphates, etc. have been removed at a rapid rate. The magnetodynamic study of ganga water proves it to be an extremely pure and highly resourced fluid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356672
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  • 5
    Electronic Resource
    Electronic Resource
    Inhibition of red light-induced seed germination by indole-3-acetic acid inHygrophila auriculata (1992)
    Springer
    Journal of plant growth regulation 11 (1992), S. 203-208 
    Details
    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Seed germination inHygrophila auriculata (Schumach.) Haines was found to be under phytochrome control. Exogenous indole-3-acetic acid (IAA) application at concentrations greater than 1×10−6 M inhibited germination in the dark, as well as in the light. Red light-induced radicle growth, prior to radicle protrusion through seed coverings and measured as an angle formed by the radicle with the seed axis, was found to be inhibited by IAA. Delay in application of IAA to red light-irradiated seeds resulted in a gradual increase in percent germination, which probably corresponded to the time-course of Pfr action. It is suggested that exogenously applied IAA probably reimposes dormancy in red light-induced seeds ofHygrophila auriculata.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02115478
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  • 6
    Electronic Resource
    Electronic Resource
    Cover Crop Root Distribution and Its Effects on Soil Nitrogen Cycling (1998)
    Springer
    Semigroup forum 90 (1998), S. 511-518 
    Details
    ISSN: 1432-2137
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: - 3 through root extension are a possible solution. A 2-yr field study was conducted on a Greenville fsl (fine, kaolinitic, thermic Rhodic Kandiudults) in central Georgia to determine root distribution of legume and nonlegume winter cover crops and their ability to absorb soil NO- 3 and accumulate it in aboveground biomass. Cereal rye (Secale cereale L.), hairy vetch (Vicia villosa Roth), and crimson clover (Trifolium incarnatum L.) were planted in a prepared seedbed in the fall and accumulated biomass was incorporated into the soil in the spring. Season variations in root distribution were measured by minirhizotron and soil separation methods. Soil mineral N concentration and aboveground biomass yield and N uptake were determined at regular intervals during the growing season. Total minirhizotron root count (MRC; no. roots cm-2 soil profile) at the 1- to 50-cm soil depth increased at the rate of 0.01 roots cm-2d-1 in hairy vetch in the fall to 0.38 roots cm-2d-1 in crimson clover in the spring, as temperature increased. Roots were well distributed to the 50-cm soil depth. Compared with the other cover crops, rye had significantly greater total MRC from Dec. 1996 to Feb. 1997 and total root length density (RLD; cm root length cm-3 soil) at the 0- to 30-cm depth from Nov. 1995 to Apr. 1996 and in Jan. 1997, and the subsequent NO- 3 or inorganic N concentration in the soil was lower and aboveground biomass yield was greater. MRC was positively correlated with RLD in Nov. 1995, Apr. 1996, and Jan. 1997. A significant positive correlation was observed between MRC and aboveground biomass yield or N uptake (r = 0.52 to 0.68, P ≤ 0.05) and a negative correlation between MRC and soil NO- 3 concentration (r = -0.51 to -0.55, P ≤ 0.05) early in the growing season. Rye had the greatest root density and aboveground biomass, and scavenged more soil NO- 3 early in the growing season. Nonlegume cover crops, such as rye, may be more effective in reducing residual NO- 3 and potential leaching of NO- 3 from the soil early in the growing season than are legume cover crops, such as hairy vetch or crimson clover.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
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  • 7
    Electronic Resource
    Electronic Resource
    Differential susceptibility of two varieties of cowpea (Vigna unguiculata (L) Walp) to phosphorus-induced zinc deficiency (1977)
    Springer
    Plant and soil 48 (1977), S. 279-290 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In a soil pot culture experiment conducted under greenhouse conditions, two varieties of cowpea (Vigna unguiculata (L) Walp) were found to be differentially susceptible to phosphorus-induced zinc deficiency. Although phosphate application, in the absence of applied zinc, caused growth disorder in both the varieties, the symptoms were more virulent, appeared early and were induced with both 25 and 75 ppm phosphorus in variety HFC-42-1, as against FOS-1, in which case zinc deficiency symptoms appeared under P75Zn0 treatment only. Contrary to the expectation the more susceptible variety was found to have higher zinc concentration in its shoots and thus the differential susceptibility of these varieties of cowpea could not be related to their zinc absorption characteristics. High phosphate application caused efflux of zinc during 16–32 day growth in both the varieties. However, higher sensitivity to phosphorus-induced zinc disorder in variety HFC-42-1, appeared to be due to nearly 2 times higher P concentration in this variety as against FOS-1. The results indicate that variety HFC-42-1 has a greater need for zinc because of its inherent capacity to accumulate more phosphorus. Dry matter yield and phosphorus and zinc content in the varieties were also differentially affected by the applications of both phosphate as well as zinc. re]19760504
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02187240
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  • 8
    Electronic Resource
    Electronic Resource
    Yield and uptake response of lettuce to cadmium as influenced by nitrogen application (1988)
    Springer
    Nutrient cycling in agroecosystems 18 (1988), S. 49-56 
    Details
    ISSN: 1573-0867
    Keywords: Lettuce yield ; cadmium ; Cd × N interaction ; nitrogen uptake ; cadmium uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A screen house experiment was conducted to determine the effect of N (0, 50, 100 and 150 mg N kg−1) and Cd (0, 5, 10, 25 and 50 mg Cd kg−1) on growth and concentration and uptake of N and Cd in lettuce grown for 70 days. Nitrogen application increased significantly fresh yield, dry matter yield, N concentration and uptake, whereas these parameters were significantly decreased by Cd application at all levels of N. The concentration and uptake of Cd were significantly increased by Cd application at all levels of N. This increased Cd uptake was related to increased availability of Cd in soil. Application of N upto 100 mg N kg−1 increased Cd uptake, whereas there was sharp reduction in Cd uptake at 150 mg N kg−1 treatment at all levels of Cd. The plant dilution effects and reduced translocation of Cd from roots to tops or the competition at the root absorption sites at highest level of N seem to be the mechanisms responsible for N suppressed Cd uptake in this study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01064177
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  • 9
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of ruthenium tetroxide catalysed oxidation of cyclic alcohols by bromate in a base (1991)
    Springer
    Transition metal chemistry 16 (1991), S. 466-468 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Kinetic investigations on the RuO4-catalysed oxidation of cyclopentanol (Cypol) and cyclohexanol (Cyhol) in alkaline KBrO3 in the presence of Hg(OAc)2 which acts as a bromide ion scavenger have been made in the 30°–45°C range. The reaction exhibits zero order kinetics in OH− and is first order with respect to BrO 3 − , substrate and RuO4. The influence of Hg(OAc)2 and ionic strength is insignificant. A transient complex, formed between HRuO 5 − (the active species of RuO4) and the cyclic alcohol, reacts with BrO 3 − in a slow, rate determining step to give the products; the catalyst is regenerated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01129466
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  • 10
    Electronic Resource
    Electronic Resource
    Mechanism of iridium(III) catalysis in the oxidation of diols by N-bromoacetamide (1993)
    Springer
    Transition metal chemistry 18 (1993), S. 427-430 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The kinetics of iridium(III)-catalysed oxidation of 1,2-ethanediol and 1,4-butanediol by N-bromoacetamide (NBA) in HClO4 in the presence of [Hg(OAc)2] as a scavenger for Br− have been investigated. The reactions are zero-order with respect to both diols, and first-order in NBA at low NBA concentrations, tending to zero order at high concentrations. The order in IrIII decreases from unity to zero at high iridium(III) concentrations. A positive effect on the oxidation rate is observed for [H+] and [HgII] whereas a negative effect is observed for acetamide and [Cl−]. Ionic strength does not influence the oxidation rate. (H2OBr)+ is postulated as the oxidizing species. A mechanism consistent with the observed kinetic data is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00208187
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