caa a22 4500 606218645 CHVBK 20210128101114.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s11104-014-2307-2 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2307-2 Three-dimensional architecture of axile roots of field-grown maize [Elektronische Daten] [Jie Wu, Loïc Pagès, Qian Wu, Bo Yang, Yan Guo] Background and aims: The framework of root system architecture is shaped by the three-dimensional (3D) trajectory of the axile roots. However, methods for characterising root trajectory in the field are lacking. Our aim was to develop a new method for quantifying the spatial distribution of axile roots of maturing plants. Methods: The trajectory of axile roots of two maize cultivars was measured using a 3D digitiser in situ in the field, in parallel with diameter measurements along the same roots based on scanned images. The measured diameters were then mapped onto the digitised trajectory. Results: We show that inter-plant distances did not influence root trajectory in either cultivar. The two cultivars had different initial angles from the vertical and presented slightly different patterns of root angle distribution. The reorientation of an axile root downwards was related to its angle and diameter, which can serve as a valuable resource for the parameterisation of root architecture models. Conclusions: The method is suitable for accurate determination of the 3D architecture of axile roots of mature maize plants under field conditions. The value of acquiring a relative complete root trajectory is highlighted. Springer International Publishing Switzerland, 2014 Root system architecture nationallicence Axile root nationallicence Root angle nationallicence Root diameter nationallicence Root architectural model nationallicence Zea mays nationallicence Wu Jie Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut Pagès Loïc INRA, UR 1115 PSH, Site Agroparc, 84914, Avignon cedex 9, France aut Wu Qian Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut Yang Bo Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut Guo Yan Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 363-377 0032-079X 387:1-2<363 2015 387 11104 https://doi.org/10.1007/s11104-014-2307-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2307-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Jie Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut NATIONALLICENCE 700 1- Pagès Loïc INRA, UR 1115 PSH, Site Agroparc, 84914, Avignon cedex 9, France aut NATIONALLICENCE 700 1- Wu Qian Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut NATIONALLICENCE 700 1- Yang Bo Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut NATIONALLICENCE 700 1- Guo Yan Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, College of Resources and Environmental Sciences, China Agricultural University, 100193, Beijing, China aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 363-377 0032-079X 387:1-2<363 2015 387 11104