基于核磁共振成像技术的作物根系无损检测  

Non-destructive detection of plant roots based on magnetic resonance imaging technology

作　　者：张建锋[1] 吴迪[1,2] 龚向阳[3] 何勇[1] 刘飞[1] 

机构地区：[1]浙江大学生物系统工程与食品科学学院,杭州310058 [2]爱尔兰国立都柏林大学生物系统工程系 [3]浙江大学医学院附属邵逸夫医院放射科,杭州310016

出　　处：《农业工程学报》2012年第8期181-185,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家高技术研究发展计划(863计划)项目(2011AA100705;2012AA101903);国家自然科学基金项目(31071332);浙江省自然科学基金重点项目(Z3090295);浙江省科学技术创新团队项目(2009R50001)

摘　　要：作物根系三维构型对于作物养分吸收具有十分重要的作用。该研究选用玉米、大豆和茄子3种常见作物根系作为研究对象,利用核磁共振成像(MRI)技术对其根系三维构型进行原位无损检测。试验研究和分析了生长介质、作物根系类型以及三维重建方法对作物根系成像的影响,并探讨了应用MRI技术快速无损进行作物根系研究的优势和不足。研究表明,应用MRI技术进行作物根系三维构型的研究是可行的。该研究为作物根系三维构型的定量描述和分析提供了一种新的途径。Three-dimensional（3-D） root architecture plays an important role in the nutrition absorption for crops.Taking the roots of corn,soybean,and eggplant as study objects,magnetic resonance imaging technology（MRI） technique was used to acquire 3-D architectures of these roots in situ.Various factors affecting the process of MRI were discussed,such as growth medium,root type,and three-dimensional reconstruction methods.Advantages and disadvantages of MRI as a rapid and non-invasive technique for the root architecture research were also discussed.The results show the feasibility of applying MRI technique for the acquisition of 3-D root architectures of crops.This study will be helpful for the further quantitative description and analysis of 3-D root architecture of crops using MRI technique.

关 键 词：核磁共振 无损检测 三维构型 根系 

分 类 号：S124.9[农业科学—农业基础科学]