Development of the Water Stress Diagnostic Technology of the Citrus using Spectral Measurement and Granier Method
光谱测量和格兰尼尔法柑橘水分胁迫诊断技术的开发
基本信息
- 批准号:16580205
- 负责人:
- 金额:$ 1.41万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2004
- 资助国家:日本
- 起止时间:2004 至 2005
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this study, water stress diagnostic technology of the citrus using spectral measurement and Granier method was developed. The commercial sensor was selected as one that can measure soil moisture inexpensively and quickly at field experiment. Very high correlation (r=0.897) was acquired between the total leaf area calculated from the half-ellipse model, and the total leaf area obtained by counting the number of total leaves. The technology of estimating the total leaf area by non-contact and non-destructive method with high precision was developed using the inexpensive digital camera with a fish-eye lens. Moreover, we used the Granier method and tried measuring the transpiration flow rate of the citrus tree under the mulch-cultivation. Consequently, it was shown clearly that the soil dryness by rain interception of white mulch sheet gives dryness stress to a tree, and reduces the transpiration flow rate. Furthermore, the non-destructive technique of estimating the leaf water potential of a citrus leaf was examined using near infrared spectral analyzer. In PLS regression analysis of the eight main ingredients which calculated from the all of 1,061 measurements at each wavelength (1300-2400nm), the high prediction accuracy of R=0.817, difference SEP=0.300MPa, and Bias=0.004MPa was acquired. From this, it became clear that the water potential of a citrus leaf could be estimated by non-destructive method using an infrared spectrum method.
本研究建立了光谱法和Granier法相结合的柑橘水分胁迫诊断技术。通过田间试验,选用了一种价格低廉、测量速度快的商品化土壤水分传感器。用半椭圆模型计算的总叶面积与通过计数叶片总数得到的总叶面积之间有很高的相关性(r=0.897)。利用廉价的鱼眼透镜数码相机,开发了高精度、非接触、非破坏的叶片总面积估算技术。此外,我们还尝试用Granier法测定了覆盖栽培条件下柑橘树的蒸腾流量。结果表明,白色地膜截留雨水造成的土壤干燥对树木造成了干旱胁迫,降低了蒸腾流量。此外,利用近红外光谱分析仪对柑橘叶片水势的无损估测技术进行了研究。在每个波长(1300- 2400 nm)下对1,061个测量值进行的8个主要成分的PLS回归分析中,获得了R=0.817、差值SEP=0.300MPa、偏差为0.004MPa的高预测精度。由此,可以清楚地看出,柑橘叶的水势可以通过使用红外光谱法的非破坏性方法来估计。
项目成果
期刊论文数量(40)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
グラニエ法を用いた、マルチ栽培下のカンキツ樹体における蒸散流測定
使用 Granier 方法测量覆盖栽培柑橘树的蒸腾流量
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Morinaga;K;森重貴
- 通讯作者:森重貴
Estimation of the Leaf Area Index of the Citrus Tree by the Digital Image
数字图像估算柑橘树叶面积指数
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Morinaga;K;森重貴;岩谷潔;上木啓史;Takashi MORISHIGE;Kiyoshi IWAYA
- 通讯作者:Kiyoshi IWAYA
グラニエ法を用いたマルチ栽培下のカンキツ樹体における蒸散流測定
使用 Granier 方法测量覆盖栽培柑橘树的蒸腾流量
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Morinaga;K;森重貴;岩谷潔;上木啓史;Takashi MORISHIGE;Kiyoshi IWAYA;Hirofumi UEKI;森重貴
- 通讯作者:森重貴
Production Capacity Evaluation of the Citrus Tree by the Optical Method
光学法评价柑橘树生产能力
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:Iwaya;K
- 通讯作者:K
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YAMAMOTO Haruhiko其他文献
YAMAMOTO Haruhiko的其他文献
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{{ truncateString('YAMAMOTO Haruhiko', 18)}}的其他基金
Prediction of paddy rice production risk in 100 years of weather and water resources in northeastern China
东北地区100年天气和水资源的水稻生产风险预测
- 批准号:
15H05256 - 财政年份:2015
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Monitoring and Restoration by Cultivation and Transplant of Moss Vegetation in the World Heritage "Kumano Pilgrimage Routes"
世界遗产“熊野朝圣道”苔藓植被的培育和移植监测与恢复
- 批准号:
20300289 - 财政年份:2008
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)