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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhao Chunjiang Liu Liangyun Wang Jihua Huang Wenjiang Song Xiaoyu Li Cunjun Wang Zhijie |
| Copyright Year | 2004 |
| Description | Author affiliation: National Eng. Res. Center for Inf. Technol. in Agric., Beijing (Zhao Chunjiang; Liu Liangyun; Wang Jihua; Huang Wenjiang; Song Xiaoyu; Li Cunjun; Wang Zhijie) |
| Abstract | The wheat grain quality and its influence were introduced, and the mechanism and methods to forecast grain quality were studied. Firstly, the leaf nitrogen content at anthesis stage was proved to be an indicator of grain protein content, and the spectral indices significant correlated to leaf nitrogen content at anthesis stage were the potential indictors for grain protein content. The vegetation index. VIgreen, derived from the spectral reflectance at green and red bands, was significant correlated to the leaf nitrogen content at anthesis stage, and also high significant to the final grain protein content. Secondly, the environment stress, such as irrigation, fertilization, temperature, had important influence on grain quality. The irrigation stress can increase grain protein content. The leaf water content depends on irrigation levels, therefore, the spectral indices correlated to leaf water content were also potential indictors for grain quality. The spectral reflectance at SWIR band and other water indices at seeding filling stage were proved to be high significant correlate to grain protein. Finally, the predicting models of grain protein content were built based on the transfer principle of leaf nitrogen content and the effect of irrigation stress |
| Starting Page | 4008 |
| Ending Page | 4010 |
| File Size | 347882 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780387422 |
| DOI | 10.1109/IGARSS.2004.1370007 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-09-20 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Remote sensing Proteins Nitrogen Irrigation Stress Reflectivity Vegetation Temperature Filling Predictive models |
| Content Type | Text |
| Resource Type | Article |
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