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  • Hydroxyl radical  (3)
  • Brassica  (2)
  • Fertilizer N  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 12 (1992), S. 11-18 
    ISSN: 0891-5849
    Keywords: Calcium paradox ; Catalase ; Free radicals ; HPLC ; Hydroxyl radical ; Oxygen-derived radicals ; Salicylate
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0891-5849
    Keywords: ATP ; Free radicals ; Function ; Hydrogen peroxide ; Hydroxyl radical ; Lipid peroxidation ; Myocardium ; Rat ; Salicylic acid ; Ultrastructure
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Molecular and Cellular Cardiology 26 (1994), S. 441-454 
    ISSN: 0022-2828
    Keywords: ATP ; Ascorbic acid ; Function ; Heart ; Hydrogen peroxide ; Hydroxyl radical ; Iron ; Lipid peroxidation ; Ultrastructure
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0789
    Keywords: Added N interaction ; Fertilizer N ; 15N Oryza sativa ; Soil N ; Wetland rice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A pot experiment was conducted to compare the yields from five commercially cultivated varieties (Bas-198, Bas-370, Bas-Pak, Bas-385, and IR-6) of rice (Oryza sativa L.) and to establish the relative significance of soil N and fertilizer N (15N-labelled ammonium sulphate) in affecting crop performance. Another aim was to study the interaction of fertilizer N and soil N as influenced by different rice varieties. Among the five varieties tested, Bas-Pak gave the maximum dry matter and N yield. The N-use efficiency (percentage of applied N taken up by the plants) of different varieties ranged between 33.7 and 43.7%, Bas-Pak being the most efficient. Significant losses of fertilizer N occurred from the soil-plant system. The maximum N loss (52.1% of applied N) was observed with IR-6 and the minimum loss (39.2%) with Bas-Pak. A substantial increase in the uptake of soil N following the application of fertilizer and an interaction between the two N sources were observed with all varieties except Bas-385. The interaction was attributed to greater root proliferation following the application of fertilizer. It was concluded that a varietey with greater potential to use soil N is likely to give a better yield and that, of the two N sources, the availability of soil N was more important in determining the yield performance of different varieties of rice.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Biology and fertility of soils 11 (1991), S. 97-100 
    ISSN: 1432-0789
    Keywords: Added N interaction ; Fertilizer N ; 15N ; Organic amendment ; Oryza sativa ; Wetland rice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A pot experiment was conducted to study the availability of soil and fertilizer N to wetland rice as influenced by wheat straw amendment (organic amendment) and to establish the relative significance of the two sources in affecting crop yield. Straw was incorporated in soil at 0.1, 0.2, and 0.3% before transplanting rice. Inorganic N as 15N-ammonium sulphate was applied at 30, 60, and 90 μg g-1 soil either alone or together with wheat straw in different combinations. After harvesting the rice, the plant and soil samples were analyzed for total N and 15N. Straw incorporation significantly decreased the dry matter and N yield of rice, the decrease being greater with higher rates of straw. The reduction in crop yield following the straw incorporation was attributed mainly to a decrease in the uptake of soil N rather than fertilizer N. The harmful effects of organic matter amendment were mitigated by higher levels of mineral N addition. The uptake of applied N increased and its losses decreased due to the straw incorporation. Mineral N applied alone or together with organic amendment substantially increased the uptake of unlabelled soil N. The increase was attributed to a real added N interaction.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 121 (1990), S. 203-209 
    ISSN: 1573-5036
    Keywords: Brassica ; chlorophyll ; growth ; iron ; manganese ; waterlogging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Waterlogging tolerance of four Brassica species, Brassica campestris L., B. carinata A. Br., B. juncea (L.) Czern and Coss., and B. napus L. was assessed after 4 weeks growth in greenhouse at two waterlogging treatments, unflooded control soil, and fully waterlogged soil. Shoot fresh and dry biomass, in both mean and relative terms, was highest in B. juncea and lowest in B. napus at waterlogging treatment. B. carinata was as good as B. juncea in mean shoot fresh and dry matter but it had almost same relative shoot fresh matter as that in B. campestris, but was second highest in relative shoot dry weight. Waterlogging treatment caused a marked reduction in chlorophyll content in all four species but the species difference was not evident. However, B. juncea and B. napus had lower relative total chlorophyll than the other species. A marked increase in soluble protein content of B. juncea and a significant increase in total amino acids in B. carinata was observed under waterlogged conditions as compared to the other species. At the waterlogging regime, an increase in iron content in both shoots and roots was observed in all four species. B. juncea accumulated lower amount of iron in both shoots and roots as compared to the other species, whereas B. carinata had also lower iron in the roots. The species did not differ for shoot manganese content but B. carinata had significantly higher manganese in the roots as compared to the other species.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 122 (1990), S. 203-209 
    ISSN: 1573-5036
    Keywords: Brassica ; chlorophyll ; growth ; iron ; manganese ; waterlogging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Waterlogging tolerance of fourBrassica species,Brassica campestris L.,B. carinata A. Br.,B. juncea (L.) Czern and Coss., andB. napus L. was assessed after 4 weeks growth in greenhouse at two waterlogging treatments, unflooded control soil, and fully waterlogged soil. Shoot fresh and dry biomass, in both mean and relative terms, was highest inB. juncea and lowest inB. napus at waterlogging treatment.B. carinata was as good asB. juncea in mean shoot fresh and dry matter but it had almost same relative shoot fresh matter as that inB. campestris, but was second highest in relative shoot dry weight. Waterlogging treatment caused a marked reduction in chlorophyll content in all four species but the species difference was not evident. However,B. juncea andB. napus had lower relative total chlorophyll than the other species. A marked increase in soluble protein content ofB. juncea and a significant increase in total amino acids inB. carinata was observed under waterlogged conditions as compared to the other species. At the waterlogging regime, an increase in iron content in both shoots and roots was observed in all four species.B. juncea accumulated lower amount of iron in both shoots and roots as compared to the other species, whereasB. carinata had also lower iron in the roots. The species did not differ for shoot manganese content butB. carinata had significantly higher manganese in the roots as compared to the other species.
    Type of Medium: Electronic Resource
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