Persistent Link:
http://hdl.handle.net/10150/203775
Title:
Durum wheat yield prediction at flowering stage for late N management
Author:
Wang, Guangyao (Sam); Gutierrez, Mario; Ottman, Michael J.; Thorp, Kelly
Issue Date:
Sep-2010
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Forage and Grain: A College of Agriculture and Life Sciences Report
Abstract:
Managing late N application effectively in durum wheat is important to reach desirable protein content. Yield prediction at anathesis is needed to estimate N requirement for the crop and N application rate. In this project, we use canopy reflectance and image processing, measured at anthesis, to estimate yield at harvest. Our results of the growing season 2009-2010 suggested that the canopy reflectance index ‘NWI-4’ and the spike pixel size obtained from image processing at anthesis are potential approaches to predict durum wheat yield at harvest. The final goal of this research is to find a simple and rapid method to manage late N fertilizer to reach desirable grain protein content.
Keywords:
Agriculture -- Arizona; Grain -- Arizona; Forage plants -- Arizona; Wheat -- Arizona
Series/Report no.:
AZ1526; Series P-160

Full metadata record

DC FieldValue Language
dc.titleDurum wheat yield prediction at flowering stage for late N managementen_US
dc.contributor.authorWang, Guangyao (Sam)en_US
dc.contributor.authorGutierrez, Marioen_US
dc.contributor.authorOttman, Michael J.en_US
dc.contributor.authorThorp, Kellyen_US
dc.date.issued2010-09-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalForage and Grain: A College of Agriculture and Life Sciences Reporten_US
dc.description.abstractManaging late N application effectively in durum wheat is important to reach desirable protein content. Yield prediction at anathesis is needed to estimate N requirement for the crop and N application rate. In this project, we use canopy reflectance and image processing, measured at anthesis, to estimate yield at harvest. Our results of the growing season 2009-2010 suggested that the canopy reflectance index ‘NWI-4’ and the spike pixel size obtained from image processing at anthesis are potential approaches to predict durum wheat yield at harvest. The final goal of this research is to find a simple and rapid method to manage late N fertilizer to reach desirable grain protein content.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectGrain -- Arizonaen_US
dc.subjectForage plants -- Arizonaen_US
dc.subjectWheat -- Arizonaen_US
dc.identifier.urihttp://hdl.handle.net/10150/203775-
dc.relation.ispartofseriesAZ1526en_US
dc.relation.ispartofseriesSeries P-160en_US
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