Deep Rooting in Winter Wheat : Rooting Nodes of Deep Roots in Two Cultivars with Deep and Shallow Root Systems
スポンサーリンク
概要
- 論文の詳細を見る
Deep rooting of wheat has been suggested that it influences the tolerance to various environmental stresses. In this study, the nodes from which the deepest penetrated roots had emerged were examined in winter wheat. The wheat was grown in long tubes with or without mechanical stress and in large root boxes. The length and growth angle of each axile root were examined to analyze the difference in the vertical distribution of the roots between the two wheat cultivars, one with a deep and one with a shallow root system. In Shiroganekomugi, a Japanese winter wheat cultivar with a shallow root system, the rooting depths of the seminal and nodal roots decreased as the rooting nodes advanced acropetally. Six out of nine deepest roots were seminal root in the non-mechanical stress conditions. In Mutsubenkei, a Japanese winter wheat cultivar with a deep root system, grown in root boxes, not only the seminal roots but also the coleoptilar and the first nodal roots penetrated to a depth of more than 1.3 m in the root box, and became the deepest roots. In both cultivars, the seminal roots became the deepest roots under the mechanical stress conditions. There were no clear tendencies in the root growth angles among the rooting nodes in the wheat root system. This indicates that the length of the axile roots can explain the differences in the rooting depths among axile roots in a wheat root system. On the other hand, the axile roots of Mutsubenkei elongated significantly more vertically than those of Shiroganekomugi. This suggests that not only seminal but also nodal roots exhibit strong positive gravitropism and penetrate deeply in a cultivar with a deep root system. In wheat cultivars, it is likely that the extent of its Root Depth Index results partly from the gravitropic responses of both seminal and nodal roots.
- 日本作物学会の論文
著者
-
Iijima Morio
Graduate School of Bioagricultural Sciences, Nagoya University
-
ARAKI Hideki
Graduate School of Engineering, Osaka University
-
Araki H
Graduate School Of Biogricultural Sciences Nagoya University
-
Araki Hideki
Graduate School Of Bioagricultural Sciences Nagoya University
-
Iijima Morio
Graduate School Of Bioagricultural Sciences Nagoya University
-
Iijima Morio
Graduate School Of Biogricultural Sciences Nagoya University
関連論文
- Water Acquisition from the Seasonal Wetland and Root Development of Pearl Millet Intercropped with Cowpea in a Flooding Ecosystem of Northern Namibia(Crop Physiology and Ecology)
- Detection of Neodymium-Rich Phase for Development of Coercivity in Neodymium-Iron-Boron-Based Alloys with Submicron-Sized Grains Using Positron Lifetime Spectroscopy
- Relationship between Coercivity and Microstructural Changes During DR Treatment in the HDDR-processed Nd-Fe-Co-B Alloy
- Effects of Common Soil Protozoa on the Growth of Rice(Abstract of Presentations at the 136th Meeting)
- The mucilage-border cell complex contributes to growth enhancement of rice plants through interactions with soil protozoa
- Mixed Planting with Legumes Modified the Water Source and Water Use of Pearl Millet(Crop Physiology and Ecology)
- Crop Production in Namibia : Present Situation and Perspectives
- Deep Root Water Uptake Ability and Water Use Efficiency of Pearl Millet in Comparison to Other Millet Species(Crop Physiology and Ecology)
- Productivity and Water Source of Intercropped Wheat and Rice in a Direct-sown Sequential Cropping System : The Effects of No-tillage and Drought(Crop Physiology and Ecology)
- Fractal and Multifractal Analysis of Cassava Root System Grown by the Root-Box Method
- Deep Rooting in Winter Wheat : Rooting Nodes of Deep Roots in Two Cultivars with Deep and Shallow Root Systems
- No-Tillage Enhanced the Dependence on Surface Irrigation Water in Wheat and Soybean(Crop Physiology and Ecology)
- Pearl Millet Developed Deep Roots and Changed Water Sources by Competition with Intercropped Cowpea in the Semiarid Environment of Northern Namibia(Crop Physiology and Ecology)
- Water Competition of Intercropped Pearl Millet with Cowpea under Drought and Soil Compaction Stresses(Crop Physiology and Ecology)
- Combined Soil Physical Stress of Soil Drying, Anaerobiosis and Mechanical Impedance to Seedling Root Growth of Four Crop Species(Crop Physiology and Ecology)
- Erosion Control on a Steep Sloped Coffee Field in Indonesia with Alley Cropping, Intercropped Vegetables, and No-Tillage
- Which Roots Penetrate the Deepest in Rice and Maize Root Systems?
- Maize-Soybean-Cowpea Sequential Cropping as a Sustainable Crop Production for Acid-Infertile Clay Soils in Indonesia(Agronomy)
- Cassava-Based Intercropping Systems on Sumatra Island in Indonesia : Productivity, Soil Erosion, and Rooting Zone(Agronomy)
- Root System Development Including Root Branching in Cuttings of Cassava with Reference to Shoot Growth and Tuber Bulking
- Structure and Function of the Root Cap
- Physiol-Morphological Analysis on Axile Root Growth in Upland Rice
- Root System Development of Cassava and Sweetpotato during Early Growth Stage as Affected by High Root Zone Temperature
- Interspecific differences in water uptake and water use efficiency of millets grown under water stresses
- Hydrogen Stable Isotope Analysis of Water Acquisition Ability of Deep Roots and Hydraulic Lift in Sixteen Food Crop Species(Crop Physiology and Ecology)
- A comparative study of deep root wwater uptake efficiency by different millet species
- Crop Production in Successive Wheat-Soybean Rotation with No-Tillage Practice in Relation to the Root System Development(Agronomy)
- Transport Properties in Molten Silver Iodide
- Reduction of $S$-parameter by the Introduction of Nitrogen in GaNAs: Positron Annihilation and Photoluminescence Spectroscopy Study