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EFFECTS OF INCIDENT RADIATION AND NITROGEN AVAILABILITY ON THE QUALITY PARAMETERS OF TRITICALE GRAINS IN ARGENTINA

Published online by Cambridge University Press:  18 August 2006

A. AGUIRRE
Affiliation:
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba. CC 509, 5000 Córdoba, Argentina
O. J. RUBIOLO
Affiliation:
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba. CC 509, 5000 Córdoba, Argentina
P. D. RIBOTTA
Affiliation:
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba. CC 509, 5000 Córdoba, Argentina
J. S. LUJÁN
Affiliation:
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba. CC 509, 5000 Córdoba, Argentina
G. T. PÉREZ
Affiliation:
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba. CC 509, 5000 Córdoba, Argentina
A. E. LEÓN
Affiliation:
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba. CC 509, 5000 Córdoba, Argentina
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Abstract

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The effects of radiation conditions and nitrogen (N) availability on triticale were investigated. The relationship between shading (S) and N supply and their effect on the industrial use of triticale flour were studied. Incident radiation/shade conditions affected all the parameters measured. Nitrogen supply influenced yield, protein content, sodium dodecyl sulphate-sedimentation index (SDS-SI), alkaline water retention capacity (AWRC), cookie factor and diameter of four cookies (D4C). The proportion of proteins of high molecular weight was increased with nitrogen supply and pre-anthesis shade, while post-anthesis shade increased proteins of lower molecular weight. The interaction between variety and N supply was significant for yield, SDS-SI and AWRC. Only yield and specific weight were affected by N × S interaction. Significant effects of the interaction of variety, N supply and shade conditions were observed for specific weight.

Type
Research Article
Copyright
2006 Cambridge University Press