基于细胞光电信息的作物耐盐性活体评价方法研究

项目名称： 基于细胞光电信息的作物耐盐性活体评价方法研究

项目编号： No.31471412

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 农业科学

项目作者： 习岗

作者单位： 西安理工大学

项目金额： 73万元

中文摘要： 土壤盐渍化是影响全球粮食生产的重要环境因素，开发和培育耐盐作物，提高盐渍化土地利用率，维持粮食生产是人类关注的重大问题，其中，建立耐盐作物品种评价和鉴定技术是必须解决的基础科学问题之一。本项目在分析作物耐盐性评价研究现状和不足的基础上，提出了根据盐胁迫下作物细胞光电信息分析细胞有序状态的变化，在活体细胞层面评价作物耐盐性的思路。为此，本项目首先研究盐胁迫下萌发种子超弱光子辐射中自发发光和外界光诱导的延迟发光的变化规律和意义，建立基于自发发光和延迟发光的评价作物萌发期耐盐性的方法；然后，研究盐胁迫下作物苗期叶片电信号功率谱分布的变化规律和意义，建立基于叶片电信号功率谱分布特征参数的作物苗期耐盐性评价方法。本项目的开展有助于解决从活体细胞层面无损、在位、准确和定量评价作物耐盐性的难题，研究结果可以推广到各种植物抗逆性和植物衰老的研究。

中文关键词： 农业信息化；无损检测；信息融合；数字农业；精准农业

英文摘要： Soil salinization is an important environmental factor affecting global food production. Cultivate salt-tolerant crops, improve the utilization of salinization land and maintain food production is a major issue of concern to humanity. Among them, the fundamental scientific issues that must be solved is to establish the evaluation and identification technology about salt tolerant crop varieties. This project analyzed the research advances and defects on evaluation of crop salt tolerance, proposed a new idea of evaluating crop salt tolerance at the cellular level according to photoelectric information of crop leaf cells under salt stress. For this purpose, the project will first research the changes of ultraweak photon emission from crop leaves under salt stress including spontaneous luminescence and delayed luminescence induced by external light and their biological significance, and than establish the measurement and evaluation method of cell state according to the biological significance of the ultraweak photon emission of leaf cells, evaluate salt tolerance of crop in accordance with the changes of cell state. The project will also study the variation and significance of power spectrum distribution about electric signal of crop leaves under salt stress, and establish evaluation method of crop salt tolerance based on the characteristic parameters of the power spectrum distribution. This project will help to solve the problem of evaluating salt tolerance of crops in cellular level with non-destructive, accurate and quantitative characteristics. The results of research can be generalized to study various plant stress resistance and plant senescence.

英文关键词： agricultural informatization;nondestructive examination;information fusion;digital agriculture;precision agriculture