| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m12.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZGivnJRY/KUaEF |
| Repository | sid.inpe.br/mtc-m12@80/2006/04.28.19.30 |
| Last Update | 2007:03.22.17.38.11 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m12@80/2006/04.28.19.30.10 |
| Metadata Last Update | 2018:06.05.00.40.45 (UTC) administrator |
| Secondary Key | INPE-14626-PRE/9629 |
| ISSN | 0103-9016 |
| Citation Key | XavierRudMorAlvFre:2006:HyFiRe |
| Title | Hyperspectral field reflectance measurements to estimate wheat grain yield and plant height  |
| Year | 2006 |
| Month | Mar-Apr. |
| Access Date | 2024, Apr. 26 |
| Secondary Type | PRE PN |
| Number of Files | 1 |
| Size | 564 KiB |
| 2. Context | |
| Author | 1 Xavier, Alexandre Cândido 2 Rudorff, Bernardo Friedrich Theodor 3 Moreira, Mauricio Alves 4 Alvarenga, Brummer seda 5 Freitas, José Gulherme de |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGKP 3 8JMKD3MGP5W/3C9JHT4 |
| Group | 1 2 DSR-INPE-MCT-BR 3 DSR-INPE-MCT-BR 4 DSR-INPE-MCT-BR |
| e-Mail Address | bernardo@ltid.inpe.br |
| Journal | Scientia Agricola |
| Volume | 63 |
| Number | 2 |
| Pages | 130-138 |
| History (UTC) | 2006-04-28 19:30:10 :: bernardo -> banon :: 2006-08-01 14:10:45 :: banon -> administrator :: 2006-09-03 21:43:57 :: administrator -> marciana :: 2007-03-22 17:41:32 :: marciana -> administrator :: 2009-08-12 01:08:41 :: administrator -> marciana :: 2011-05-21 11:03:28 :: marciana -> administrator :: 2012-07-13 16:14:04 :: administrator -> banon :: 2006 2012-09-18 17:11:59 :: banon -> administrator :: 2006 2018-06-05 00:40:45 :: administrator -> marciana :: 2006 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | AGRICULTURA agriculture vegetation indices |
| Abstract | Hyperspectral crop reflectance data are useful for several remote sensing applications in agriculture, but there is still a need for studies to define optimal wavebands to estimate crop biophysical parameters. The objective of this work is to analyze the use of narrow and broad band vegetation indices (VI) derived from hyperspectral field reflectance measurements to estimate wheat (Triticum aestivum L.) grain yield and plant height. A field study was conducted during the winter growing season of 2003 in Campinas, São Paulo State, Brazil. Field canopy reflectance measurements were acquired at six wheat growth stages over 80 plots with four wheat cultivars (IAC-362, IAC-364, IAC-370, and IAC-373), five levels of nitrogen fertilizer (0, 30, 60, 90, and 120 kg of N ha-1) and four replicates. The following VI were analyzed: a) hyperspectral or narrow-band VI (1. optimum multiple narrow-band reflectance, OMNBR; 2. narrow-band normalized difference vegetation index, NB_NDVI; 3. first- and second-order derivative of reflectance; and 4. four derivative green vegetation index); and b) broad band VI (simple ratio, SR; normalized difference vegetation index, NDVI; and soil-adjusted vegetation index, SAVI). Hyperspectral indices provided an overall better estimate of biophysical variables when compared to broad band VI. The OMNBR with four bands presented the highest R2 values to estimate both grain yield (R2 = 0.74; Booting and Heading stages) and plant height (R2 = 0.68; Heading stage). Best results to estimate biophysical variables were observed for spectral measurements acquired between Tillering II and Heading stages. |
| Area | SRE |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Hyperspectral field reflectance... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/6qtX3pFwXQZGivnJRY/KUaEF |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZGivnJRY/KUaEF |
| Language | en |
| Target File | BERNARDO.pdf |
| User Group | administrator banon bernardo marciana |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ER446E |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.41 4 sid.inpe.br/mtc-m21/2012/07.13.14.56.26 1 |
| Dissemination | WEBSCI; PORTALCAPES; SCIELO. |
| Host Collection | sid.inpe.br/banon/2001/04.06.10.52 |
| 6. Notes | |
| Empty Fields | affiliation alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |