Results 261 to 270 of about 12,753,497 (298)
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Bead method for measuring the root surface area in conifers
Plant and Soil, 1988A method of determining the surface area of mycorrhizous conifer roots is described. The roots are cleaned from soil particles by washing, slightly dried and covered with a monolayer of plastic beads. The surface area is estimated on the basis of the weight of adhered beads.
A. Koppel, A. Jaenes, K. Lôhmus
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A method to separate plant roots from soil and analyze root surface area
Plant and Soil, 2004Analysis of the effects of soil management practices on crop production requires knowledge of these effects on plant roots. Much time is required to wash plant roots from soil and separate the living plant roots from organic debris and previous years’ roots. We developed a root washer that can accommodate relatively large soil samples for washing.
J. G. Benjamin, D. C. Nielsen
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Root surface area measurements based on adsorption and desorption of nitrite
Plant and Soil, 1995A method, based on the negative adsorption of NO2 -, has been developed to determine surface area of roots. Young roots of 3–4 year old plants ofAcacia catechu, Eucalyptus camaldulensis andLeucaena leucocephala were up-rooted and cut into 18 cylindrical pieces. Each root piece was immersed individually for 10 sec in 0.05M, 0.10M and 0.15M aqueous NaNO2
S. A. Ansari, Pramod Kumar, B. N. Gupta
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Archives of Oral Biology, 2016
This study investigated the influence of root variations on the root surface area (RSA) by using micro-CT scans.A total of 228 extracted permanent teeth (2-rooted and single-rooted maxillary first premolars, mandibular first premolars with non-Tomes' and Tomes' roots, 2-rooted and 3-rooted mandibular first molars, and 2-rooted and C-shaped mandibular ...
Y, Gu, Y, Tang, Q, Zhu, X, Feng
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This study investigated the influence of root variations on the root surface area (RSA) by using micro-CT scans.A total of 228 extracted permanent teeth (2-rooted and single-rooted maxillary first premolars, mandibular first premolars with non-Tomes' and Tomes' roots, 2-rooted and 3-rooted mandibular first molars, and 2-rooted and C-shaped mandibular ...
Y, Gu, Y, Tang, Q, Zhu, X, Feng
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A meta‐analysis of normal ranges for root surface areas of the permanent dentition
Journal of Clinical Periodontology, 1994Abstract The typical values and normal ranges of the permanent dentition root surface areas were estimated based on a meta‐analysis of 4730 root surface area measurements collected from 22 published studies between 1950 and 1992. A typical dentition root surface area, excluding 3rd molars, was 75 cm2, and 95% of the dentitions had a total root surface ...
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Root surface/leaf area ratios in arctic dwarf shrubs
Plant and Soil, 1983Individual shoots of the shrubs Ledum palustre L., Vaccinium uliginosum L., and Betula nana L. were severed from their parent plants beneath the moss surface in an Alaskan tussock tundra. These shoots remained one year in their original position in peat moss cushions without further disturbance. After this period fine root dry weight, fine root surface
J Kummerow
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Root Elongation, Root Surface Area and Organic Acid by Rice Seedling Under Al3+ and/or H+ Stress
American Journal of Agricultural and Biological Science, 2011بيان المشكلة: في ظل الحالة الحمضية، Al 3+ هو النوع الأكثر شيوعًا في المحلول. تم إجراء تجربة لدراسة آثار Al و/أو درجة الحموضة على إنبات بذور الأرز، وتشكيل الجذر وإطلاق الأحماض العضوية. تم إجراء هذه الدراسة في درجة الحرارة المحيطة في ماليزيا .المقاربة: تم إجراء تجربتين: (1) تعرضت بذور الأرز التي تخضع للإنبات إلى 0.5 مللي مولار من محاليل CaCl 2 التي تحتوي
J Shamshuddin
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Primate body mass and dietary correlates of tooth root surface area
American Journal of Biological Anthropology, 2021AbstractObjectivesThis study aims to examine primate postcanine tooth root surface area (TRSA) in the context of two ecological variables (diet and bite force). We also assess scaling relationships within distinct taxonomic groups and across the order as a whole.Materials and MethodsMandibular postcanine TRSA was measured using a three‐dimensional ...
Ashley R. Deutsch +6 more
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Root surface area measured by the benzene adsorption method
The Journal of Prosthetic Dentistry, 1974Abstract The root surface area is important in planning treatment for restorative and preventive dentistry. Most of the methods presented in literature are based on membrane techniques using different materials. These methods become less accurate and cumbersome when root surface areas of multirooted teeth have to be measured.
S P, Luthra, I, Narayan, N, Subrahmanyam
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Linear Variation of the Root Surface Area of the Maxillary First Molar
Journal of Periodontology, 1985The variation of root surface area (RSA) in 1‐mm increments from the cementoenamel junction (CEJ) to the apex was determined for the maxillary first molar. Twenty extracted maxillary first molars were cross sectioned every millimeter, and each section was photographed, projected and measured with a calibrated opisometer.
M W, Gher, R W, Dunlap
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