文献类型： 外文期刊

作者： Wu, Qian ¹ ; Wu, Jie ² ; Hu, Pengcheng ³ ; Zhang, Weixin ¹ ; Ma, Yuntao ⁵ ; Yu, Kun ⁶ ; Guo, Yan ⁵ ; Cao, Jing ¹ ; Li, Huayong ⁶ ; Li, Baiming ¹ ; Yao, Yuyang ⁷ ; Cao, Hongxin ¹ ; Zhang, Wenyu ¹ ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Informat, IGRB IAI Joint Lab Germplasm Resources Innovat & I, YuanQi IAI Joint Lab Agr Digital Twin, Nanjing 210014, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Acad Adv Interdisciplinary Studies, Plant Phen Res Ctr, Nanjing 210095, Jiangsu, Peoples R China

3.Univ Queensland, Sch Agr & Food Sci, St Lucia, Qld 4072, Australia

4.Jiangsu Univ, Sch Agr Engn, Zhenjiang 212013, Jiangsu, Peoples R China

5.China Agr Univ, Coll Land Sci & Technol, Beijing 100193, Peoples R China

6.Jiangsu Acad Agr Sci, Inst Germplasm Resources & Biotechnol, IGRB IAI Joint Lab Germplasm Resources Innovat & I, Nanjing 210014, Jiangsu, Peoples R China

7.Nanjing Univ Informat Sci & Technol, Coll Elect & Informat Engn, Nanjing 210044, Jiangsu, Peoples R China

关键词： Automated imaging; Multi-view stereo; 3D root phenotyping; Global; local root trait; Root segmentation; Initial root angle

期刊名称：PLANT METHODS （ 影响因子：5.1； 五年影响因子：6.1 ）

ISSN：

年卷期： 2023 年 19 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundCrop breeding based on root system architecture (RSA) optimization is an essential factor for improving crop production in developing countries. Identification, evaluation, and selection of root traits of soil-grown crops require innovations that enable high-throughput and accurate quantification of three-dimensional (3D) RSA of crops over developmental time.ResultsWe proposed an automated imaging system and 3D imaging data processing pipeline to quantify the 3D RSA of soil-grown individual plants across seedlings to the mature stage. A multi-view automated imaging system composed of a rotary table and an imaging arm with 12 cameras mounted with a combination of fan-shaped and vertical distribution was developed to obtain 3D image data of roots grown on a customized root support mesh. A 3D imaging data processing pipeline was developed to quantify the 3D RSA based on the point cloud generated from multi-view images. The global architecture of root systems can be quantified automatically. Detailed analysis of the reconstructed 3D root model also allowed us to investigate the Spatio-temporal distribution of roots. A method combining horizontal slicing and iterative erosion and dilation was developed to automatically segment different root types, and identify local root traits (e.g., length, diameter of the main root, and length, diameter, initial angle, and the number of nodal roots or lateral roots). One maize (Zea mays L.) cultivar and two rapeseed (Brassica napus L.) cultivars at different growth stages were selected to test the performance of the automated imaging system and 3D imaging data processing pipeline.ConclusionsThe results demonstrated the capabilities of the proposed imaging and analytical system for high-throughput phenotyping of root traits for both monocotyledons and dicotyledons across growth stages. The proposed system offers a potential tool to further explore the 3D RSA for improving root traits and agronomic qualities of crops.