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Monitoring internal properties of on-plant tomato fruits by NIR spectroscopy and it's application to the nutrient control for the soilless cultivation

近红外光谱监测番茄果实内部特性及其在无土栽培养分控制中的应用

基本信息

批准号：
17580225
负责人：
MATSUOKA Takahisa
金额：
$ 2.37万
依托单位：
Kochi University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

项目摘要

There is a nutrient control method to produce the tomato fruits of high sugar content in soilless cultivation. The nutrient control by the water stress and the salinity stress affects the quality and the yield of tomato fruits but as of now the method of the nutrient management depends on the practical experience of farmer. Therefore, an advanced nutrient control technology is needed to produce the tomato fruits aimed sugar content and quality surely. The nutrient control method based on the constituent information in the growing tomato fruits is considered as a method of achieving such a technology. That is, it can also use it to judge the just harvest timing of fruits at the same time as being able to reflect this information in the nutrient control in real time if the constituent information in the on-plant tomato fruits can be detected by the near-infrared spectroscopy. In this research, when the constituent information in the immature tomato fruits of on-plant was monitored by the near-infrared spectroscopy, expecting the sugar content it ripened into full maturity, and the constructing the system to reflect this in the nutrient control became possible (patent fillings "nutrient controller"). Farther more, in addition to the constituent information in the fruits, to obtain the earlier stress information of plants, the calibration model was developed to measure the water potential of the plant leaf nondestructive on the site that is the index of the water stress of the tomato plants, and the system that was able to measure the water potential of the tomato plant leaf nondestructive in real time on the site were constructed. As a result, the nutrient control based on the water potential information of on-plant leaf became possible. These results are four papers and three patent applications. A prototype device is made for practical use, and it aims at commercialization.

无土栽培生产高糖番茄果实有一种营养调控方法。水分胁迫和盐分胁迫对番茄果实的营养调控影响番茄果实的品质和产量，但目前番茄果实营养调控的方法主要依靠农户的实践经验。因此，需要一种先进的营养调控技术，以确保生产出符合糖含量和品质要求的番茄果实。基于生长番茄果实中成分信息的营养控制方法被认为是实现这一技术的方法。也就是说，如果能够通过近红外光谱法检测出在植物上番茄果实中的成分信息，则还可以使用它来判断果实的正确收获时间，同时能够将该信息真实的反映在营养控制中。在本研究中，当近红外光谱监测未成熟的番茄果实的成分信息时，期望其成熟到完全成熟的糖含量，并构建系统以反映营养控制（专利填充物“营养控制器”）成为可能。在此基础上，为了获得番茄植株早期胁迫信息，在获取果实成分信息的基础上，建立了番茄植株叶片水势的现场无损测量校正模型，并构建了番茄植株叶片水势的现场无损实时测量系统。结果表明，基于植株叶片水势信息的养分调控成为可能。这些成果是四篇论文和三项专利申请。制作了一个原型装置用于实际应用，其目标是商业化。