منابع مشابه
Diurnal variation in the nitrate content of parsley foliage
The diurnal fluctuation of nitrate concentration in the foliage of three parsley subspecies (plain-leafed, curly-leafed and turnip rooted parsley) cultivated in the spring and autumn of two consecutive years was examined. Nitrogen was applied at 30 (Control), 75, 150, 300 mg kg-1 in both years, but with the addition of 450 mg kg-1 in year 2. Harvest was carried out at 08:30, 12:30 and 17:30 on ...
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Fine root respiration is a significant component of carbon cycling in forest ecosystems. Although fine roots differ functionally from coarse roots, these root types have been distinguished based on arbitrary diameter cut-offs (e.g., 2 or 5 mm). Fine root morphology is directly related to physiological function, but few attempts have been made to understand the relationships between morphology a...
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It has been known for many hundreds of years that asthma is worse at night. Sir John Floyer in his classic 'Treatise of the Asthma' (1698) wrote: 'I have observed the fit always to happen after Sleep in the Night when Nerves are filled with windy Spirits, and the heat of the bed has rarified the Spirits and Humours'. l Although these exacerbations are a well established clinical phenomenon, the...
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This study sought to determine diurnal variations in febrile convulsions, and to investigate whether such variations influenced the severity of febrile convulsions. The study involved 326 children, between ages 6 months and 6 years, with simple febrile convulsions. Data were collected systematically by interviewing witnesses within the week after febrile convulsions occurred. The frequency of f...
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Cyclosporine (Cy A) is now considered a primary immunosuppressant used to prevent organ rejection in liver, kidney, and heart transplant patients (1-3). It has been recommended that the blood level of Cy A be monitored in these patients to minimize the possibility of rejection due to low CyA blood concentrations or potential toxicity due to high CyA concentrations (4,5). This is based on the ob...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1962
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.37.3.371