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Abstract:

Even though advances in technology at the beginning of the fifties resulted in a significant tendency for increases in the yield of most cereals and oil seeds grown in the extensive rain-fed agricultural lands of the humid Pampa, inter-annual variability is still appreciable and there is a consensus in attributing it to climatic causes. In order to prove this hypothesis, an exploratory analysis was made using the wheat yield series of 1923-1985 in the Partido of Tres Arroyos in the S.E. of the Province of Buenos Aires. Climatic variability was introduced by means of monthly precipitation and temperature for the 12 months of each year of the series. Yield data were divided into three groups: good, average and bad. By means of multivariate discriminant analysis, it was verified that the yield groups divide the complete series of the associated climatic variables in a statistically significant way. Starting from the discriminant functions, a yield forecast was performed showing that it would be possible to infer at the end of September, with an error not greater than one category, the yield level that would be verified for the December-January harvest, with a 92% probability of success. © 1990.

Registro:

Documento: Artículo
Título:Wheat yield variability in the S.E. of the Province of Buenos Aires
Autor:Sierra, E.M.; Brynsztein, S.M.
Filiación:Facultad de Agronomía, Universidad de Buenos Aires, Avenida San Martin 4453, 1417 Buenos Aires, Argentina
Departmento de Meteorología, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:climatic variability; discriminant analysis; inter-annual variability; multi-variate analysis; wheat yield; yield variability; Argentina, Buenos Aires; Argentina, Province of Buenos Aires
Año:1990
Volumen:49
Número:4
Página de inicio:281
Página de fin:290
DOI: http://dx.doi.org/10.1016/0168-1923(90)90002-N
Título revista:Agricultural and Forest Meteorology
Título revista abreviado:Agric. For. Meterol.
ISSN:01681923
CODEN:AFMEE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01681923_v49_n4_p281_Sierra

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Citas:

---------- APA ----------
Sierra, E.M. & Brynsztein, S.M. (1990) . Wheat yield variability in the S.E. of the Province of Buenos Aires. Agricultural and Forest Meteorology, 49(4), 281-290.
http://dx.doi.org/10.1016/0168-1923(90)90002-N
---------- CHICAGO ----------
Sierra, E.M., Brynsztein, S.M. "Wheat yield variability in the S.E. of the Province of Buenos Aires" . Agricultural and Forest Meteorology 49, no. 4 (1990) : 281-290.
http://dx.doi.org/10.1016/0168-1923(90)90002-N
---------- MLA ----------
Sierra, E.M., Brynsztein, S.M. "Wheat yield variability in the S.E. of the Province of Buenos Aires" . Agricultural and Forest Meteorology, vol. 49, no. 4, 1990, pp. 281-290.
http://dx.doi.org/10.1016/0168-1923(90)90002-N
---------- VANCOUVER ----------
Sierra, E.M., Brynsztein, S.M. Wheat yield variability in the S.E. of the Province of Buenos Aires. Agric. For. Meterol. 1990;49(4):281-290.
http://dx.doi.org/10.1016/0168-1923(90)90002-N