Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIE

Recently, S. reilianum has caused significant ecological and economic damage in the maize-producing areas of Mexico and other countries. Knowledge about the spatiotemporal stability and distribution of the disease is important for the development of integrated management programs. The present study...

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Autores principales: Ramírez-Dávila,José F, Sánchez-Pale,Jesús R, Porcayo-Camargo,Elvia, de León,Carlos
Lenguaje:English
Publicado: Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2012
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300006
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spelling oai:scielo:S0718-162020120003000062014-03-10Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIERamírez-Dávila,José FSánchez-Pale,Jesús RPorcayo-Camargo,Elviade León,Carlos Geostatistics SADIE spatial distribution Spatiotemporal stability Sphacelotheca Zea mays Recently, S. reilianum has caused significant ecological and economic damage in the maize-producing areas of Mexico and other countries. Knowledge about the spatiotemporal stability and distribution of the disease is important for the development of integrated management programs. The present study was performed to model the spatial distribution of S. reilianum from 2006 to 2009 using geostatistic techniques and to determine the spatiotemporal stability of corn head smut via a spatial analysis by distance indices (SADIE) and the Cramer-von Mises test. The incidence of the disease was determined in 100 corn parcels located in Santa Magdalena Valle de Bravo Municipality, and the parcel locations were determined with dGPS. The spatial distribution analysis was performed using spatial statistics (Geostatistic and SADIE). Aggregation maps were developed; and the long term spatiotemporal stability was determined with the Cramer-von Mises test and the SADIE association index. The results showed that geostatistics were able to establish S. reilianum spatial patterns, visualizing its centers of aggregation through elaborated maps. Such aggregation enables adequate management actions in terms of points or specific sites. The association index of SADIE (Im) and the bi-variable Cramer-von Mises (Ψ) proof make it possible to determine the spatiotemporal stability of the disease over the four years of the study.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.39 n.3 20122012-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300006en10.4067/S0718-16202012000300006
institution Scielo Chile
collection Scielo Chile
language English
topic Geostatistics
SADIE
spatial distribution
Spatiotemporal stability
Sphacelotheca
Zea mays
spellingShingle Geostatistics
SADIE
spatial distribution
Spatiotemporal stability
Sphacelotheca
Zea mays
Ramírez-Dávila,José F
Sánchez-Pale,Jesús R
Porcayo-Camargo,Elvia
de León,Carlos
Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIE
description Recently, S. reilianum has caused significant ecological and economic damage in the maize-producing areas of Mexico and other countries. Knowledge about the spatiotemporal stability and distribution of the disease is important for the development of integrated management programs. The present study was performed to model the spatial distribution of S. reilianum from 2006 to 2009 using geostatistic techniques and to determine the spatiotemporal stability of corn head smut via a spatial analysis by distance indices (SADIE) and the Cramer-von Mises test. The incidence of the disease was determined in 100 corn parcels located in Santa Magdalena Valle de Bravo Municipality, and the parcel locations were determined with dGPS. The spatial distribution analysis was performed using spatial statistics (Geostatistic and SADIE). Aggregation maps were developed; and the long term spatiotemporal stability was determined with the Cramer-von Mises test and the SADIE association index. The results showed that geostatistics were able to establish S. reilianum spatial patterns, visualizing its centers of aggregation through elaborated maps. Such aggregation enables adequate management actions in terms of points or specific sites. The association index of SADIE (Im) and the bi-variable Cramer-von Mises (Ψ) proof make it possible to determine the spatiotemporal stability of the disease over the four years of the study.
author Ramírez-Dávila,José F
Sánchez-Pale,Jesús R
Porcayo-Camargo,Elvia
de León,Carlos
author_facet Ramírez-Dávila,José F
Sánchez-Pale,Jesús R
Porcayo-Camargo,Elvia
de León,Carlos
author_sort Ramírez-Dávila,José F
title Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIE
title_short Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIE
title_full Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIE
title_fullStr Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIE
title_full_unstemmed Determination of spatiotemporal stability of corn head smut(Sporisorium reilianum) by SADIE
title_sort determination of spatiotemporal stability of corn head smut(sporisorium reilianum) by sadie
publisher Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate 2012
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300006
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