High resolution hyperspectral imagery to assess wheat grain protein in a farmer’s field (Record no. 58228)

000 -LEADER
fixed length control field 03671nab a22003257a 4500
001 - CONTROL NUMBER
control field a58228
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190411163512.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 170130s2016 xxu|||p|op||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 1# - MAIN ENTRY--PERSONAL NAME
Field link and sequence number I1705451
9 (RLIN) 782
Personal name Rodrigues, F.
Miscellaneous information Sustainable Intensification Program
245 10 - TITLE STATEMENT
Title High resolution hyperspectral imagery to assess wheat grain protein in a farmer’s field
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Missouri, USA :
Name of publisher, distributor, etc. International Society of Precision Agriculture,
Date of publication, distribution, etc. 2016.
520 ## - SUMMARY, ETC.
Summary, etc. The agricultural research sector is working to develop new technologies and management knowledge to sustainably increase food productivity, to ensure global food security and decrease poverty. Wheat is one of the most important crops into this scenario, being among the three most important cereal commodities produced worldwide. Precision Agriculture (PA) and specially Remote Sensing (RS) technologies have become in the recent years more affordable which has improved the availability and flexibility of acquiring images from both manned and unmanned vehicles. For this reason, CIMMYT’s research agenda aims at developing new crop management practices using PA/RS technologies. As part of these efforts, a wheat experiment was established on a farmer’s field in the Yaqui Valley, northwestern Mexico, sown in January and harvested in May 2014. This work focuses on the evaluation of narrow-band physiological spectral indices to estimate wheat grain protein content (GPC). Also to determine the optimum normalized difference spectral index (NDSI) and ratio spectral index (RSI), aiming to better explore the use of the hyperspectral signal on the assessment of GPC. A weekly/biweekly flight campaign took place from GS31 stage (stem elongation) until harvest, totaling 10 airborne images acquired at high resolution with a micro-hyperspectral imaging sensor ranging from 400-850 nm region, flying at 1200 m above ground resulting in a ground resolution of 1 m. Manual grain sampling took place just before harvest through a targeted grid of 14 sampling points on block A and a half regular / half stratified grid of 50 sampling points each on block B. Under the conditions of this study, characterized by low spatial variability within the commercial field, the results obtained yielded coefficients of determination among vegetation indices (VIs) and GPC ranging from non-significant to 0.14 across all images. Complete two by two combinations of wavelengths approach applied into NDSI formula performed better on assessing GPC than VIs from the literature. However, the spectral region beyond the visible and near-infrared might be needed to assess GPC at field level. On the other hand, this approach allowed visualizing the spectral range/wavelengths that predominantly better explained GPC across the crop cycle than ordinary VIs.
526 ## - STUDY PROGRAM INFORMATION NOTE
Program name Wheat CRP
Wheat Flagship Projects FP4 - Sustainable intensification of wheat - based cropping systems
526 ## - STUDY PROGRAM INFORMATION NOTE
Program name CCAFS
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1310
Topical term or geographic name as entry element Wheats
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1138
Topical term or geographic name as entry element Grain
Miscellaneous information AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number INT1421
9 (RLIN) 827
Personal name Ortiz-Monasterio, I.
Miscellaneous information Sustainable Intensification Program
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 2334
Personal name Zarco‑Tejada, P.J.
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number I1706676
9 (RLIN) 1999
Personal name Toledo, F.H.
Miscellaneous information Genetic Resources Program
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number CSCU01
9 (RLIN) 2005
Personal name Schulthess, U.
Miscellaneous information Sustainable Intensification Program
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number INT3372
9 (RLIN) 946
Personal name Gerard, B.
Miscellaneous information Sustainable Intensification Program
711 ## - ADDED ENTRY--MEETING NAME
9 (RLIN) 4155
Meeting name or jurisdiction name as entry element International Conference on Precision Agriculture
Location of meeting St. Louis, Missouri USA
Date of meeting July 31 - August 4, 2016
773 0# - HOST ITEM ENTRY
Title 13th International Conference on Precision Agriculture
Related parts p. 1-13
856 4# - ELECTRONIC LOCATION AND ACCESS
Link text Access only for CIMMYT Staff
Uniform Resource Identifier http://46.20.115.203/Download/cis/58228.pdf
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Conference proceedings
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Date last seen Price effective from Koha item type
  Not Lost       CIMMYT Staff Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2017-01-30 2017-01-30 2017-01-30 Conference proceedings
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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org