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Heterosis in Japonica/Indica F1 Rice Hybrids with Special Reference to Nodal Root Function
Dry matter partitioning Heterosis Japonica/indica F1 hybrid Nitrogen uptake
2009/8/6
Although root system of japonica/indica F1 hybrids of rice (Oryza sativa L.) must play an important role for expression of heterosis, few studies have been conducted. This study was carried out to eva...
Interspecific Differences of the Root System Structures of Four Cereal Species as Affected by Soil Compaction
Cereal root system structures Interspecific differences Lateral root development Mechanical impedance Root system morphometry Root extension rate Soil compaction Soil physical environment
2009/8/5
Comparison of the root system structures of four cereal species as affected by soil compaction was conducted morphometrically. Plants were grown under two different soil bulk densities of 1.33g/cm3 (c...
Root Branching in Maize:I. "Branching index" and methods for measuring root length
Branch root Branching index Image analyzing system Line intersection method Maize
2009/8/4
Root branching in maize (Zea mays L. cv. Pioneer 3558) at harvest stage was examined, with the "branching index" defined as the product of the 'length factor' and 'density factor'. "Branching index" w...
Heterosis for Root System Development in Japonica/Indica F1 Rice Hybrid
Heterosis Japonica/indica F1 hybrid Lateral root Nodal root Rice Specific root length Total root length
2009/8/4
Vigorous growth of F1 hybrid of rice (Oryza sativa L.) may be partially attributed to the development and function of the root system, but only a few studies have been conducted in this aspect. This s...
Varietal Differences of Root Systems in Winter Wheat Seedlings
Root length Root system Spread of root system Triticum aestivum L Varietal differences Winter wheat
2009/7/30
Varietal differences in root system morphology in winter wheat (Triticum aestivum L.) were investigated using seed pack growth pouches in a greenhouse. Different genotypic cultivars, shorter B-288 D f...
Effects of Soil Water Condition on Root Development of Wheat Seedling with Special Reference to Branching of Primary Seminal Root
Branching Lateral root Nodal root Root system Seminal root Triticum aestivum L
2009/7/30
Effects of soil water stress on root development of winter wheat seedling was studied with special reference to elongation and branching of seminal roots. Japanese wheat variety Norin 61 was planted ...
Applicable Range of the Pipe Model to the Structure of Soybean (Glycine max Merr.) Root System
Glycine max Merr Pipe model Plow sole depth Root diameter Root system Soybean
2009/7/30
The applicability of the pipe model to the structure of soybean (Glycine max Merr.) root system grown under various underground water levels or depths of plow sole were investigated. The form, distrib...
Analysis of Timecourse Changes in Root System Morphology of Rice in Excised Root Culture
Excised root culture Fractal Oryza sativa L Rice Root system development Timecourse change
2009/7/29
The development of cultured seminal root system of rice was analyzed to determine the most appropriate culture period for the characterization of root system morphology. Excised seminal root tips of T...
Carbon and Nitrogen Dynamics with Aging in Seminal Root System of Rice Seedling
Aging Carbon Lateral roots Nitrogen Partitioning
2009/7/29
The allocation pattern of carbon (C) and nitrogen (N) with aging among several organs of rice seedling was investigated with particular attention to the difference in seminal root axis (SRA) and conco...
Relationship between Root Respiration and Silica : Calcium Ratio and Ammonium Concentration in Bleeding Sap from Stem in Rice Plants during the Ripening Stage
Ammonium Bleeding Calcium Rice Root respiration
2009/7/29
Rice plants were given various treatments, such as organic matter application, a large amount of nitrogen as topdressing and light shading of 75%, and ammonium (NH3), silica (SiO2) and calcium (Ca) in...
Physiological Response to Salinity in Rice Plant : IV. Ion exclusion in the excised root exposed to NaCl stress with hydraulic pressure
Endodermis Exodermis Ion exclusion Metabolic inhibitor Rice root
2009/7/28
Ion exclusion in excised nodal root of rice (Oryza sativa L. cv. Kala-Rata 1-24) exposed to NaCl stress with hydraulic pressure was studied. The effects of collecting the exudate from the stele instea...
Effects of Scion and Stock on Root Growth of Grafting Plants between Two Potato Varieties with Different Root Mass
Dry matter partition Solanum tuberosum L
2009/7/28
The relationships of root growth with shoot and tuber growths have still not been clear in potato plants. The aim of this report is to clarify whether a varietal difference in root growth of potato pl...
A Minirhizotron Method for Measuring Root System of Soybean Plants Growing in the Field
Fiber-optic scope Minirhizotron Root length Root length density Root system Soil-core sampling metho
2009/7/28
In order to develop a simple and accurate system for measuring the root system of soybean plants growing in the field, a fiber-optic scope with a portable color video tape recorder was employed in a ...
Analysis on Root System Morphology in Rice with Reference to Varietal Differences at Ripening Stage
Nodal roots 0ryza sativa L Root depth index Root distribution Root length Root weight
2009/7/28
The morphology of the rice root system was established by analyzing varietal differences. Four rice varieties, Koshihikari, Dobashi 1, IR36 and Lemont, were grown in an experimental paddy under ordina...
Fractal Geometry in Root Systems:Quantitative Evaluation of Distribution Pattern
Fractal Root box Root length Root morphology Root system
2009/7/28
In order to describe root distribution quantitatively, fractal analysis was applied to root systems. Root systems of soybean and garden pea seeldings grown in narrow root boxes (30×41×2 cm) were sampl...