Results 131 to 140 of about 542 (157)
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Recording, processing and analysis of grass root images from a rhizotron
Plant and Soil, 1996To develop and test a system for computer-assisted image analysis, repeated video recordings of reed canary-grass roots (Phalaris arundinacea L.) were made in an 18-window rhizotron. The images were digitized and processed using a Unix computer and the Khoros software development environment. Two image sizes, 126 x 95 mm and 61 x 46 mm, both comprising
Olof Andrén +2 more
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Macropore effects on phosphorus acquisition by wheat roots – a rhizotron study
Plant and Soil, 2017Macropores may be preferential root pathways into the subsoil. We hypothesised that the presence of macropores promotes P-uptake from subsoil, particularly at limited water supply in surface soil. We tested this hypothesis in a rhizotron experiment with spring wheat (Triticum aestivum cv.
S. L. Bauke +7 more
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Measurement of Soil‐grown Roots in a Rhizotron1
Agronomy Journal, 1970AbstractMeasurements were made of both shoot and root growth on a corn (Zea mays L.) and a tomato (Lycopersicon esculentum Mill.) plant in a rhizotron. Root intensity at the transparent panel was estimated by two methods. It increased during the growing season for both species, but was always greater for corn.
H. M. Taylor +3 more
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Portable rhizotron and color scanner system for monitoring root development
Plant and Soil, 1998Rhizotrons allow the examination of spatial and temporal in situ root development. Permanent rhizotron installations provide 2-D images of whole root profiles, but their immobility limits the number of soil-plant systems that can be studied. Our objectives were to develop a portable rhizotron and color scanning system for studying the development of ...
W.L. Pan +3 more
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Root production in contrasting ecosystems: the impact of rhizotron sampling frequency
Plant Ecology, 2016Despite their critical role in every terrestrial ecosystem, fine root production and mortality have not been widely compared among systems due to the practical difficulties of belowground research.
Vasiliki G. Balogianni +2 more
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Device for Removing Mini – Rhizotrons from the Field1
Agronomy Journal, 1983AbstractMini‐rhizotrons (glass or acrylic tubes) are gaining widespread usage as an acceptable means for observing in situ plant root growth under field conditions. These transparent tubes are placed in the soil to various depths, and roots growing against the surface of the tube are observed throughout the season. It is difficult to remove intact mini‐
B. L. McMichael, A. D. Brashears
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Novel 3D imaging of root systems grown in slab-shaped rhizotrons
2020<p>Complex plant-soil interactions can be visualized and quantified by combined application of different non-invasive imaging techniques. Oxygen, carbon dioxide and pH gradients in the rhizosphere can be observed with fluorescent planar optodes, while neutron radiography detects small-scale heterogeneities in soil moisture and ...
Sarah Bereswill +5 more
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Monitoring Corn Root Development with a Mini‐Rhizotron in Confined Growth Boxes
Agronomy Journal, 1988AbstractNondestructive monitoring of the dynamic growth of crop root systems is important for research and teaching procedures studying root response to soil environment. Two commonly used nondestructive methods are (i) traditional rhizotrons that use flat‐sided viewing panels for root observaton, and (ii) mini‐rhizotrons that use viewing tubes and ...
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2001
The below ground activity of plants like rhizosphere effects and soil exploration may be an important factor regulating intra- and interspecific competition. Thus we compared young plants of Norway spruce and Europe beech in a rhizotrone experiment with respect to rhizosphere chemistry, rooting system and efficiency parameters.
Z. Wang, A. Göttlein
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The below ground activity of plants like rhizosphere effects and soil exploration may be an important factor regulating intra- and interspecific competition. Thus we compared young plants of Norway spruce and Europe beech in a rhizotrone experiment with respect to rhizosphere chemistry, rooting system and efficiency parameters.
Z. Wang, A. Göttlein
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A Simple Pump for Extracting Water from Neutron Access Tubes and Mini‐Rhizotrons
Agronomy Journal, 1988AbstractWater in neutron‐probe access tubes and mini‐rhizotrons impedes the acquisition of accurate data under wet field conditions. When such situations arise, water must be extracted before data can be taken. The objective was to design, construct, and use a pump that would be easy to operate, portable, and inexpensive.
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