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首页> 外文会议>International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications >Quantification of differences in root system architecture under maize/soybean interspecific interactions
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Quantification of differences in root system architecture under maize/soybean interspecific interactions

机译：玉米/大豆种间相互作用下根系结构差异的量化

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Root system architecture determines the ability of crop in water and nutrient uptake, which affects interspecific facilitation in the maize/soybean intercropping. In this study, field experiments were conducted to investigate the differences of adult root system architecture between maize (Zea mays L.)/soybean (Glycine max L.) intercropping and monocropping. The skeleton of root system was captured with 3D digitalization at filling stage of maize, then the roots were sampled and scanned. Root length and root diameter were extracted from the scanned root images. Root overlap of maize and soybean were calculated by counting the percentage of the points located on axile roots of one plant inside root system of another plant to quantify the interspecific interactions in 3D. The results showed that root-root interactions between maize and soybean altered the root system architecture of both crops. The early axile roots of maize and soybean longer than the late axile roots in two cropping patterns. Maize/soybean interspecific interactions promoted axile root elongation of maize and soybean. The asymmetric interspecific facilitation was found in diameter of axile roots, which was the late axile roots of intercropped maize significantly thicker but most axile roots of intercropped soybean significantly thinner (ANOVA, P 收起
机译：根系结构决定了作物吸收水分和养分的能力，这影响了玉米/大豆间作的种间促进作用。在这项研究中，进行了田间试验，以研究玉米（Zea mays L。）/大豆（Glycine max L.）间作和单作之间成年根系结构的差异。在玉米灌浆期利用3D数字化技术捕获根系骨骼，然后对根进行采样和扫描。从扫描的根图像中提取根长度和根直径。玉米和大豆的根重叠是通过计算位于另一株植物根系内另一株植物的根系上的点的百分比来量化3D种间相互作用来计算的。结果表明，玉米和大豆之间的根－根相互作用改变了两种作物的根系结构。在两种种植方式中，玉米和大豆的早腋根长于晚腋根。玉米/大豆种间相互作用促进了玉米和大豆的轴根伸长。在腋根的直径中发现了不对称的种间促进作用，即间作玉米的晚期腋下根明显较粗，但间作大豆的大多数腋下根显着稀疏（ANOVA，P收起

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